WEBVTT - Rerun: Lighting Up the Holidays

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<v Speaker 1>Welcome to tex Stuff production from I Heart Radio. Hey there,

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<v Speaker 1>and happy holidays, frum tech Stuff. We are currently off

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<v Speaker 1>work today. It is a holiday for us. My name,

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<v Speaker 1>by the way, is Jonathan Strickland, Diamond, executive producer with

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<v Speaker 1>I Heart Radio and how the Tech are you. We

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<v Speaker 1>didn't want to leave you without an episode today, so

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<v Speaker 1>today we're bringing you a rerun this episode originally published

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<v Speaker 1>on November two thousand nineteen. It is titled Lighting Up

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<v Speaker 1>the Holidays, and as you might guess, it's about the

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<v Speaker 1>incorporation of electric lights in particular in holiday celebrations, and

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<v Speaker 1>also you know, talking a little bit about Stranger Things

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<v Speaker 1>and why it was a challenge to make the holiday

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<v Speaker 1>lights light up in the way they do in the

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<v Speaker 1>first season of Stranger Things. So sit back, relax, and

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<v Speaker 1>enjoy this episode about lighting up the Holidays. Now, before

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<v Speaker 1>I dive into all of that, I want to acknowledge

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<v Speaker 1>a few things first. While I'll be talking about Christmas lights,

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<v Speaker 1>there are many people of different faiths, ethnicities, regions, etcetera

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<v Speaker 1>who celebrates special days during the winter months, and lights

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<v Speaker 1>nearly always play an important part in those various observations,

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<v Speaker 1>which makes total sense because the days are shorter in

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<v Speaker 1>the winter, and thus we have more hours of darkness

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<v Speaker 1>for every twenty four hour period, so lights would clearly

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<v Speaker 1>be an important part of any celebration during that part

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<v Speaker 1>of the year. So, for example, the manora in the

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<v Speaker 1>Jewish faith symbolizes how the Maccabees, when rededicating the Holy Temple,

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<v Speaker 1>which they had just won back from the Greeks, used

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<v Speaker 1>a single bottle of oil to light the manora used

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<v Speaker 1>in the rededication ceremony for eight nights, even though the

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<v Speaker 1>bottle should only have lasted a single night. Then there's

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<v Speaker 1>also the celebration of Kwanza, where families like candles in

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<v Speaker 1>the cannara, and the candles represent the seven principles of

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<v Speaker 1>the holiday. But getting back to Christmas lights, there's actually

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<v Speaker 1>an older tradition than the sort of Christmas tree lights,

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<v Speaker 1>in which Christian families would set out candles within view

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<v Speaker 1>of a window as a symbol to alert fellow Christians

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<v Speaker 1>that the family inside the house was they were made

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<v Speaker 1>up of observing Christians, and that fellow Christians would be

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<v Speaker 1>welcome to come into that house to worship with the family.

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<v Speaker 1>But the Christmas lights we see every year really have

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<v Speaker 1>their roots pun intended in a Germanic tradition of the

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<v Speaker 1>Christmas tree. So why would you ever cut down a

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<v Speaker 1>tree and bring it inside in the first place. Well, again,

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<v Speaker 1>one of those things that makes sense as you start

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<v Speaker 1>to think about all the details. Plants like fur trees

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<v Speaker 1>and holly remain green even in the winter, which otherwise

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<v Speaker 1>pretty much wipes out everything else and makes it brown

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<v Speaker 1>and dead, so or appearing to be dead. So these

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<v Speaker 1>plants became symbols of resilience and everlasting life. So people

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<v Speaker 1>would cut down some of those plants and bring them

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<v Speaker 1>indoors to remind them of that. But you know, then

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<v Speaker 1>the plants would eventually just dry out and turn brown,

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<v Speaker 1>and thus negate the whole reason for bringing them inside.

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<v Speaker 1>But you know, humans have never been rational creatures. There

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<v Speaker 1>are some unsupported legends surrounding the origins of the German

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<v Speaker 1>Christmas tree uh sometimes referred to as the Tannenbaum, but

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<v Speaker 1>really Tannenbaum is more of a word for fur trees

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<v Speaker 1>in general, not just those all decked out with bowls

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<v Speaker 1>of holly and whatnot. But one legend has it that

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<v Speaker 1>Martin Luther, the Reformer, who caused a bit of a

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<v Speaker 1>Ruckus in the fifteen hundreds, when he, you know, decided

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<v Speaker 1>to criticize the Catholic Church that he had started the

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<v Speaker 1>tradition of the Christmas tree. However, the earliest written accounts

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<v Speaker 1>on record that mentioned this tradition date to six oh five.

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<v Speaker 1>Now that doesn't mean that's when the tradition started, of course,

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<v Speaker 1>it's just the earliest written account that we happen to have.

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<v Speaker 1>Scholars think the tradition might date back at least to

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<v Speaker 1>the mid sixteenth century, though that would still be after

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<v Speaker 1>Martin Luther had died. So anyway, that sixteen o five account,

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<v Speaker 1>all it says is that the people would set up

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<v Speaker 1>Christmas trees in their rooms in Strasbourg. There's no mention

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<v Speaker 1>of lights in this particular account, but the decorations consisted

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<v Speaker 1>of things like roses made out of paper and various

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<v Speaker 1>foods being shoved into the tree, things like apples or

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<v Speaker 1>cookies and sugar. It's very food centric. In fact, there

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<v Speaker 1>was a tradition of raiding the Christmas tree on one

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<v Speaker 1>of the days of Christmas, where the kids get to

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<v Speaker 1>go and actually grab treats from the tree and eat them.

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<v Speaker 1>The first written account to bring up the detail about

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<v Speaker 1>lights in the Christmas tree dates to sixteen sixty. People

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<v Speaker 1>in Germany would pin or otherwise attached candles to branches

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<v Speaker 1>of these trees, and again, frequently these are trees that

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<v Speaker 1>have been cut down and put up inside a house,

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<v Speaker 1>not just trees out in the woods somewhere. Generally speaking,

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<v Speaker 1>the practice was to light the candles only for a

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<v Speaker 1>very short time before you blew them out again. And

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<v Speaker 1>you were never supposed to leave a tree unattended, because,

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<v Speaker 1>as you can imagine, combining a cut tree that might

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<v Speaker 1>be kind of dry with open flames is a recipe

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<v Speaker 1>for disaster. And in fact, there were more than a

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<v Speaker 1>few cases of fires with these trees, some of them

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<v Speaker 1>ending in catastrophe and tragedy. But I'm sure the effect

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<v Speaker 1>was really nice, leaning right up to the moment where

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<v Speaker 1>everything went ablaze. Okay, so let's skip ahead to the

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<v Speaker 1>eighteen hundreds. At that point the tradition extended beyond Germany.

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<v Speaker 1>Harvard professor named Charles Fallen, inspired by stories that he

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<v Speaker 1>had heard in Europe, did a lit up Christmas tree

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<v Speaker 1>here in America. This was believed to be the first

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<v Speaker 1>lit Christmas tree in America, or at least the first

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<v Speaker 1>one on record. In the eighteen forties, in England, Queen

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<v Speaker 1>Victoria and Prince Albert had a Christmas tree famously depicted

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<v Speaker 1>in an illustration that was published in a newspaper that

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<v Speaker 1>likely helped boost the practice over in England. Prince Albert

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<v Speaker 1>brought this over from his homeland in Saxony. So people

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<v Speaker 1>came up with new ways to attach the candles to trees,

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<v Speaker 1>you know, they found more improved methods that would catch

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<v Speaker 1>the wax and things like that. However, there was still

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<v Speaker 1>very much a danger of fire with this particular approach. Then,

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<v Speaker 1>in the later eighteen hundreds we get to Thomas Edison,

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<v Speaker 1>the inventor and entrepreneur who was spending a lot of

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<v Speaker 1>time and resources trying to perfect the light bulb. Which

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<v Speaker 1>he did not invent the light bulb, but he did

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<v Speaker 1>improve upon it, or rather, I should say his lab

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<v Speaker 1>improved upon it. So when he and his engineers managed

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<v Speaker 1>to make a light bulb that could last more than

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<v Speaker 1>just a few hours and could be suitable for general

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<v Speaker 1>use as opposed to stuff like the more dangerous arc

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<v Speaker 1>lamps that, while extremely bright, were not practical for everyday applications,

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<v Speaker 1>he then had to figure out a way, how do

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<v Speaker 1>I sell this idea to cities, right to city officials

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<v Speaker 1>and then further onto the general public. So he wanted

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<v Speaker 1>to convince Manhattan officials that his company should be the

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<v Speaker 1>one to provide electricity and light all of Manhattan. So

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<v Speaker 1>he had his employees hang lights during the holiday season

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<v Speaker 1>in eighteen eighty on the outside of Menlo Park, which

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<v Speaker 1>was an easy view of trains passing by, and it

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<v Speaker 1>got a lot of attention. Now, one of the inventors

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<v Speaker 1>who was working at his Menlo Park facility was Edward

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<v Speaker 1>Hibbert Johnson. Johnson had actually been responsible for giving Edison

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<v Speaker 1>a job at the Automatic Telegraph Company, but later on

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<v Speaker 1>Johnson would end up working closely with Edison to develop

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<v Speaker 1>Menlo Park itself and became an inventor and executive at

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<v Speaker 1>the Edison Light Company. So it's funny because he helped

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<v Speaker 1>get Edison a job early and then he ended up

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<v Speaker 1>working for Edison later. It was at the Menlo Park

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<v Speaker 1>facility where Johnson developed string lights, and these were lights

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<v Speaker 1>that were wired together in series and would serve as

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<v Speaker 1>the basis for Christmas lights. Just moving forward from that point,

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<v Speaker 1>he used those lights to decorate a Christmas tree and

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<v Speaker 1>so Johnson is sometimes referred to as the father of

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<v Speaker 1>electric Christmas tree lights because the original version, the earlier

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<v Speaker 1>version that Edison did that was a string of lights

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<v Speaker 1>they hung up on a building. This was the first

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<v Speaker 1>time where someone was using electric Christmas lights to replace

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<v Speaker 1>the candles that were found on the Germanic Christmas trees.

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<v Speaker 1>His lights, by the way, had bulbs that were red, white,

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<v Speaker 1>and blue. Is quite the patriotic Christmas tree, and like Edison,

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<v Speaker 1>Johnson intended that for this not just to be a

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<v Speaker 1>festive display in the spirit of America and the holiday season,

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<v Speaker 1>but also a marketing effort to get more people to

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<v Speaker 1>support and want and adopt electric lights. There was a

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<v Speaker 1>general distrust in electricity around this time, so these were

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<v Speaker 1>the ways in which Edison and his associates could try

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<v Speaker 1>to win people over to this new technology, and adoption

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<v Speaker 1>did not take off right away. So for one thing,

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<v Speaker 1>no New York based reporters wrote about this Christmas tree

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<v Speaker 1>at all, but one reporter for a Detroit newspaper did

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<v Speaker 1>publish an account of what it was like seeing the

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<v Speaker 1>Christmas tree all lit up. The next big development in

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<v Speaker 1>the adoption of Christmas lights would come in eight when

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<v Speaker 1>US President Grover Cleveland incorporated them in decorations for the

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<v Speaker 1>Christmas Tree at the White House. So we're gonna go

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<v Speaker 1>off on a little tangent here some fun trivia facts

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<v Speaker 1>about Grover Cleveland. So he's the only US president whoever

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<v Speaker 1>served two non consecutive terms, meaning he was both our

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<v Speaker 1>twenty second and our twenty fourth president of the United States.

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<v Speaker 1>The lighting of the Christmas tree would be during his

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<v Speaker 1>second term as president. And just in case you're wondering

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<v Speaker 1>the twenty third president, the one who interrupted those two

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<v Speaker 1>terms was Benjamin Harrison, the grandson of our ninth President,

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<v Speaker 1>William Henry Harrison. Sorry, I recently, I've been showing up

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<v Speaker 1>on a lot of ridiculous history episodes and sometimes that

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<v Speaker 1>stuff just gonna sticks with you. Anyway. Cleveland's Tree, Grover

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<v Speaker 1>Cleveland's tree featured one hundred lights with bulbs of various colors,

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<v Speaker 1>and it must have been a really impressive site for

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<v Speaker 1>the time. Some of the movers and shakers in America,

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<v Speaker 1>in other words, people had a ton of cash to burn.

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<v Speaker 1>They began to put up their own decorated and lit

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<v Speaker 1>Christmas trees. But it was not something the average person

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<v Speaker 1>could do. Because at that time, most of the United

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<v Speaker 1>States wasn't wired for electricity, so to even have a

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<v Speaker 1>lit Christmas tree with electric lights, you would have to

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<v Speaker 1>set up a generator. You'd also typically have to hire

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<v Speaker 1>an electrician to actually wire it up, and in today's money,

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<v Speaker 1>that would mean that decorating a tree could cost at

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<v Speaker 1>least a couple of thousands of dollars, So only the

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<v Speaker 1>hoity toity folks who wanted to show off their wealth

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<v Speaker 1>could really afford to have a Christmas tree with electric

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<v Speaker 1>lights at that time. Anyway, over the course of the

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<v Speaker 1>early nineteen hundreds, electric lights began to gain popularity as

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<v Speaker 1>people became more comfortable with the idea of electricity. And

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<v Speaker 1>it's really no wonder that folks were nervous at first.

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<v Speaker 1>Fire is something you can see, at least in most cases,

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<v Speaker 1>but electricity could be deadly but was also invisible. And

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<v Speaker 1>Edison's company had already engaged in some pretty heavy smear

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<v Speaker 1>campaigns against alternating current, since Edison was pushing direct current

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<v Speaker 1>as a means to distribute electricity regionally, and a lot

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<v Speaker 1>of those events and demonstrations that his company held involves

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<v Speaker 1>showing off how deadly electricity could be, so they were

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<v Speaker 1>kind of feeding into that fear. But the allure of

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<v Speaker 1>the lights was undeniable. And with that, I mean not

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<v Speaker 1>just Christmas lights. I mean you're running of the mill

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<v Speaker 1>light bulbs. Now. Even in n three, when General Electric

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<v Speaker 1>introduced string Christmas light kits, which will let people string

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<v Speaker 1>up their own lights at home without necessarily the use

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<v Speaker 1>of an electrician, it was still really expensive a string

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<v Speaker 1>of lights, and General Electric actually referred to these strings

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<v Speaker 1>as festoons. Anyway. The string of lights consisted of eight

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<v Speaker 1>whole light bulb sockets and they would hold Edison light

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<v Speaker 1>bulbs and it cost the equivalent of about three hundred

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<v Speaker 1>dollars today. That's just the lights, and this was not

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<v Speaker 1>something that the average family would necessarily spring for. Also,

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<v Speaker 1>you wouldn't buy these kits. You would rent them for

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<v Speaker 1>three hundred dollars, so after the rental period you would

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<v Speaker 1>actually have to return them. So yikes. Now, the bulbs

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<v Speaker 1>on these things were small, round bulbs, almost like manature

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<v Speaker 1>incandescent light bulbs. Actually that's exactly what they were, but

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<v Speaker 1>I'm talking more about the form factor rather than the

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<v Speaker 1>actual lighting mechanism. In nineteen nineteen, General Electric introduced a

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<v Speaker 1>new bulb shape and filament. It was more of a

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<v Speaker 1>flame shape, is that sort of classic, large, kind of clunky,

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<v Speaker 1>retro looking light bulb. That was the general shape that

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<v Speaker 1>they introduced, and it had a filament made out of

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<v Speaker 1>Mazda toungusten. The filament is the part of the incandescent

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<v Speaker 1>bulb that actually glows. The company would use Mazda filaments

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<v Speaker 1>in all sorts of lamp bulbs, not just Christmas ones. Now,

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<v Speaker 1>there were a couple of possibly apocryphal stories about some

0:13:31.559 --> 0:13:34.960
<v Speaker 1>smaller companies around this time that played an important role

0:13:35.000 --> 0:13:38.920
<v Speaker 1>in popularizing Christmas lights. One of those stories is about

0:13:38.960 --> 0:13:43.040
<v Speaker 1>a telephone company employee named Ralph E. Morris who at

0:13:43.080 --> 0:13:46.360
<v Speaker 1>some point. Different versions of this story can date it

0:13:46.400 --> 0:13:50.240
<v Speaker 1>to either eight, the same year that Grover Cleveland was

0:13:50.320 --> 0:13:53.200
<v Speaker 1>lighting up the White House, or nineteen o eight. There's

0:13:53.200 --> 0:13:56.160
<v Speaker 1>a pretty big discrepancy, but the stories say that he

0:13:56.240 --> 0:13:59.400
<v Speaker 1>looked at a telephone switchboard, and telephone switchboards had these

0:13:59.440 --> 0:14:02.199
<v Speaker 1>little tiny light bulbs mounted in them that would light

0:14:02.280 --> 0:14:04.920
<v Speaker 1>up when you were making connections, and he thought those

0:14:04.960 --> 0:14:08.320
<v Speaker 1>little light bulbs might make nice Christmas decorations. So he

0:14:08.400 --> 0:14:10.760
<v Speaker 1>took a bunch of those little lightbulbs, a bunch of

0:14:10.800 --> 0:14:15.040
<v Speaker 1>telephone wire, wired them all together, electrified the wire, and

0:14:15.280 --> 0:14:18.920
<v Speaker 1>made up a little lit Christmas tree, a little fake

0:14:19.400 --> 0:14:22.520
<v Speaker 1>lit Christmas tree, because the story says that he made

0:14:22.800 --> 0:14:26.320
<v Speaker 1>a makeshift Christmas tree out of feathers. I don't know

0:14:26.400 --> 0:14:29.040
<v Speaker 1>exactly how he did it, but that's what the story says.

0:14:29.400 --> 0:14:31.840
<v Speaker 1>His son would later write an article claiming that his

0:14:31.920 --> 0:14:37.720
<v Speaker 1>father invented Christmas lights, which wasn't quite accurate. They predated this,

0:14:37.800 --> 0:14:40.120
<v Speaker 1>but I'm pretty sure it was an honest mistake, not

0:14:40.280 --> 0:14:45.920
<v Speaker 1>something that was done, you know, maliciously. Now. The other,

0:14:45.960 --> 0:14:49.920
<v Speaker 1>possibly an apocryphal story involves a guy named Albert Sadaka.

0:14:50.800 --> 0:14:53.720
<v Speaker 1>This story goes that when Sedaka was fifteen, he heard

0:14:53.760 --> 0:14:57.480
<v Speaker 1>about a terrible tragedy involving a deadly fire that began

0:14:57.520 --> 0:15:01.600
<v Speaker 1>when a Christmas tree lit with candles fire and people

0:15:01.640 --> 0:15:05.520
<v Speaker 1>died as a result. His family made novelty lights with

0:15:05.560 --> 0:15:08.840
<v Speaker 1>white bulbs, so he thought, hey, how about we change

0:15:08.840 --> 0:15:12.720
<v Speaker 1>out those regular bulbs with bulbs of different colors and

0:15:12.760 --> 0:15:15.200
<v Speaker 1>we use electric lights instead of candles to light up

0:15:15.200 --> 0:15:18.120
<v Speaker 1>a Christmas tree. According to this story, he and his

0:15:18.200 --> 0:15:20.800
<v Speaker 1>brothers began to do just that, and a few years later,

0:15:20.960 --> 0:15:23.840
<v Speaker 1>they led an effort to bring together several small competing

0:15:23.920 --> 0:15:26.800
<v Speaker 1>light companies. They're all going for the same customers, and

0:15:26.840 --> 0:15:31.040
<v Speaker 1>they formed the National Outfit Manufacturers Association, or NOMA, which

0:15:31.080 --> 0:15:34.480
<v Speaker 1>would become its own company and by became the leading

0:15:34.520 --> 0:15:39.120
<v Speaker 1>manufacturing company for electric Christmas lights. Now, as power companies

0:15:39.120 --> 0:15:42.080
<v Speaker 1>wired up the United States for electricity, the popularity of

0:15:42.120 --> 0:15:45.480
<v Speaker 1>electric Christmas lights began to grow. In nineteen twenty, a

0:15:45.560 --> 0:15:49.200
<v Speaker 1>hardware store owner in California named Frederick Nash decorated trees

0:15:49.200 --> 0:15:52.640
<v Speaker 1>outside his establishment, and that quickly grew into a tradition

0:15:52.640 --> 0:15:55.280
<v Speaker 1>in which a nine block stretch of the road in

0:15:55.360 --> 0:15:58.240
<v Speaker 1>front of his business would end up having trees just

0:15:58.360 --> 0:16:01.240
<v Speaker 1>draped in lights, and it became the first big documented

0:16:01.280 --> 0:16:05.840
<v Speaker 1>outdoor Christmas lights display. When we come back, i'll talk

0:16:05.920 --> 0:16:08.200
<v Speaker 1>more about the evolution of Christmas lights, and then we'll

0:16:08.240 --> 0:16:12.040
<v Speaker 1>dive into how the heck they work, and in the

0:16:12.040 --> 0:16:15.440
<v Speaker 1>case of traditional Christmas lights, how they don't work if

0:16:15.480 --> 0:16:18.680
<v Speaker 1>just one bulb goes bad. But let's take a quick break.

0:16:29.120 --> 0:16:31.040
<v Speaker 1>I've got a little bit more to go on to

0:16:31.160 --> 0:16:34.080
<v Speaker 1>the history of Christmas lights and some of the interesting

0:16:34.120 --> 0:16:36.200
<v Speaker 1>things about them before we get into how they work.

0:16:36.320 --> 0:16:40.160
<v Speaker 1>So by the late nineteen thirties, electric Christmas lights had

0:16:40.160 --> 0:16:45.000
<v Speaker 1>become a popular new tradition, with homeowners and businesses alike

0:16:45.680 --> 0:16:49.080
<v Speaker 1>uh using them to create bright, colorful displays, and in

0:16:49.160 --> 0:16:52.800
<v Speaker 1>some cases they went a little bit overboard. A few

0:16:52.800 --> 0:16:56.560
<v Speaker 1>places became truly famous for their decorated trees and buildings.

0:16:56.920 --> 0:16:59.360
<v Speaker 1>When the United States entered into World War Two and

0:16:59.400 --> 0:17:02.480
<v Speaker 1>there was an learn about the possibility of cities being bombed,

0:17:02.920 --> 0:17:05.520
<v Speaker 1>there were blackout orders in various cities like New York,

0:17:05.880 --> 0:17:08.280
<v Speaker 1>and that meant that Christmas lights would actually go dark

0:17:08.359 --> 0:17:11.119
<v Speaker 1>in nineteen forty four in New York City, but with

0:17:11.320 --> 0:17:13.520
<v Speaker 1>the war's end the following year, people made up for

0:17:13.600 --> 0:17:18.560
<v Speaker 1>lost time. Meanwhile, tastes began to change. In America, families

0:17:18.600 --> 0:17:22.080
<v Speaker 1>in the late nineteen fifties were introduced to a new invention,

0:17:22.640 --> 0:17:27.000
<v Speaker 1>the aluminium Christmas tree. Yeah, I can't even I can't

0:17:27.000 --> 0:17:30.560
<v Speaker 1>believe this this really happened either, guys. These were trees

0:17:31.240 --> 0:17:34.080
<v Speaker 1>made out of aluminium, a space age material that was

0:17:34.520 --> 0:17:38.359
<v Speaker 1>clearly so much better than a freshly cut fir tree. However,

0:17:39.040 --> 0:17:42.200
<v Speaker 1>the Christmas lights of the day, which were still incandescent

0:17:42.240 --> 0:17:47.359
<v Speaker 1>bulbs in sometimes questionable wires, would get way too hot

0:17:47.400 --> 0:17:51.600
<v Speaker 1>for aluminium trees. They also could potentially create an electric

0:17:51.680 --> 0:17:57.080
<v Speaker 1>shock hazard because aluminum can conduct electricity. Plus, those aluminium

0:17:57.119 --> 0:18:00.160
<v Speaker 1>trees had needles quote unquote made out of foil, which

0:18:00.160 --> 0:18:03.800
<v Speaker 1>would easily melt. So instead of hanging electric lights on

0:18:03.800 --> 0:18:07.600
<v Speaker 1>the tree, companies began to manufacture lamps that had a

0:18:07.720 --> 0:18:11.639
<v Speaker 1>rotating color wheel. And it's just what it sounds like,

0:18:11.880 --> 0:18:14.480
<v Speaker 1>and it's not all that different from what was inside

0:18:14.560 --> 0:18:18.760
<v Speaker 1>old mechanical television sets before electric TV was invented. So

0:18:18.840 --> 0:18:22.000
<v Speaker 1>you've got a bulb that's what provides the light, kind

0:18:22.000 --> 0:18:24.119
<v Speaker 1>of like a projector, and in front of the bulb,

0:18:24.480 --> 0:18:28.200
<v Speaker 1>you have a wheel that has different panes of colored plastic,

0:18:28.680 --> 0:18:32.719
<v Speaker 1>and this wheel rotates past the bulb, and different colors

0:18:32.760 --> 0:18:37.000
<v Speaker 1>of light shine out of your glorious lamp towards your

0:18:37.160 --> 0:18:42.840
<v Speaker 1>even more glorious aluminum Christmas tree. It was a thing, y'all. Now,

0:18:42.880 --> 0:18:46.399
<v Speaker 1>I can't say I personally found it appealing, but back

0:18:46.440 --> 0:18:51.320
<v Speaker 1>then it was selling like gangbusters. Unfortunately for companies like Noma,

0:18:51.400 --> 0:18:54.800
<v Speaker 1>the leading manufacturer of Christmas lights, it meant that there

0:18:54.840 --> 0:18:58.360
<v Speaker 1>was a drastic drop in Christmas lights sales as these

0:18:58.359 --> 0:19:01.760
<v Speaker 1>aluminium trees became all the eight Noma would actually end

0:19:01.840 --> 0:19:04.760
<v Speaker 1>up going into bankruptcy, and today it exists as a

0:19:04.800 --> 0:19:08.000
<v Speaker 1>brand name. But that's about it. The era of the

0:19:08.040 --> 0:19:11.960
<v Speaker 1>aluminum tree lasted about a decade, upon which time many

0:19:11.960 --> 0:19:15.760
<v Speaker 1>people either went back to using the previously live trees

0:19:16.400 --> 0:19:20.240
<v Speaker 1>or they switched to more natural looking artificial trees, and

0:19:20.280 --> 0:19:24.360
<v Speaker 1>that meant the electric lights were back baby. However, because

0:19:24.520 --> 0:19:28.400
<v Speaker 1>of the American manufacturers going out of business during the

0:19:28.440 --> 0:19:32.159
<v Speaker 1>reign of aluminum Terror, the Christmas lights on the market

0:19:32.280 --> 0:19:35.399
<v Speaker 1>mostly came from other countries, so America would no longer

0:19:35.440 --> 0:19:38.800
<v Speaker 1>be king of the electric Christmas light all right. Now

0:19:38.800 --> 0:19:41.719
<v Speaker 1>we're getting up to about nineteen seventy and the introduction

0:19:41.840 --> 0:19:44.840
<v Speaker 1>of the mini light. So for a very long time,

0:19:45.000 --> 0:19:48.600
<v Speaker 1>the typical Christmas light was a five or ten watt bulb,

0:19:49.200 --> 0:19:52.000
<v Speaker 1>typically the size of a night light bulb, those little

0:19:52.320 --> 0:19:55.280
<v Speaker 1>kind of cone shaped bulbs that I was talking about,

0:19:55.320 --> 0:19:58.199
<v Speaker 1>the retro style, They were pretty big. These were the

0:19:58.200 --> 0:19:59.919
<v Speaker 1>type of lights that I grew up with when I

0:20:00.080 --> 0:20:02.000
<v Speaker 1>was a kid. That's the kind we had on our trees,

0:20:02.080 --> 0:20:06.480
<v Speaker 1>the big, big, bright lights. I still miss those. But

0:20:06.560 --> 0:20:08.919
<v Speaker 1>they drew a lot of power because the string of

0:20:09.040 --> 0:20:12.720
<v Speaker 1>fifty five what bulbs means that you're consuming two fifty

0:20:12.800 --> 0:20:16.960
<v Speaker 1>what's and most people were using multiple strands, like one

0:20:16.960 --> 0:20:19.520
<v Speaker 1>string wouldn't do it. You might have three strands, three

0:20:19.560 --> 0:20:22.199
<v Speaker 1>to five for a tree, maybe five to ten for

0:20:22.280 --> 0:20:25.160
<v Speaker 1>your house. So you're consuming an enormous amount of power

0:20:25.200 --> 0:20:28.000
<v Speaker 1>when you're having this stuff lit up. So the Christmas

0:20:28.040 --> 0:20:32.040
<v Speaker 1>lights were greedy for electricity, then they pushed electric bills

0:20:32.080 --> 0:20:35.520
<v Speaker 1>pretty high. They would also get really hot, which you

0:20:35.560 --> 0:20:38.240
<v Speaker 1>know I mentioned back with the aluminium trees. Touching a

0:20:38.280 --> 0:20:40.920
<v Speaker 1>bulb could give you a little bit of a minor burn,

0:20:41.240 --> 0:20:43.600
<v Speaker 1>as I found out on more than one occasion when

0:20:43.640 --> 0:20:46.840
<v Speaker 1>I was a kid, because I had three qualities that

0:20:47.000 --> 0:20:51.600
<v Speaker 1>guaranteed I was gonna get burned. First, I was curious. Second,

0:20:52.160 --> 0:20:55.959
<v Speaker 1>I was foolish or maybe stupid, and third I had

0:20:55.960 --> 0:20:59.880
<v Speaker 1>a really short memory, I guess anyway, the bulbs were popular.

0:21:00.280 --> 0:21:03.640
<v Speaker 1>They were colorful, but they were also wasteful and expensive.

0:21:04.320 --> 0:21:09.080
<v Speaker 1>The mini light would become a popular alternative to that bulky, hot,

0:21:09.119 --> 0:21:12.639
<v Speaker 1>expensive Christmas light of the past. The mini lights are,

0:21:12.680 --> 0:21:16.679
<v Speaker 1>as the name implies, smaller, They only need two point

0:21:16.720 --> 0:21:20.680
<v Speaker 1>five volts of electricity, and they don't get nearly as hot.

0:21:20.720 --> 0:21:23.320
<v Speaker 1>Although they are still incandescent bulbs, so they still do

0:21:23.520 --> 0:21:26.200
<v Speaker 1>generate heat. They're just not as hot as those larger

0:21:26.240 --> 0:21:29.760
<v Speaker 1>bulbs were. It does, however, raise a question, how do

0:21:29.800 --> 0:21:33.320
<v Speaker 1>you supply electricity to a two and a half volt

0:21:33.440 --> 0:21:37.560
<v Speaker 1>socket if your source is an outlet that's putting out

0:21:37.600 --> 0:21:40.399
<v Speaker 1>a hundred twenty volts. This is a good time to

0:21:40.480 --> 0:21:44.880
<v Speaker 1>transition into a talk about circuits. So a quick reminder

0:21:45.400 --> 0:21:49.560
<v Speaker 1>in electricity, voltage is sort of like water pressure in

0:21:49.600 --> 0:21:53.160
<v Speaker 1>a water system. It's how hard the electricity is being

0:21:53.200 --> 0:21:55.240
<v Speaker 1>pushed through. You can think of it like that. It's

0:21:55.280 --> 0:21:59.000
<v Speaker 1>not exactly the same, but that's a rough analogy. It's

0:21:59.040 --> 0:22:03.359
<v Speaker 1>the behind the movement of electricity, and a one volts

0:22:03.400 --> 0:22:07.280
<v Speaker 1>supply far overshadows a two and a half volt load.

0:22:07.760 --> 0:22:11.080
<v Speaker 1>So imagine like having a fire hose of water directed

0:22:11.080 --> 0:22:13.600
<v Speaker 1>at you. You've got a little shot glass that you're

0:22:13.640 --> 0:22:15.480
<v Speaker 1>filling up and dumping out. It would just be way

0:22:15.480 --> 0:22:20.119
<v Speaker 1>too much. But these Christmas lights were chained together in series,

0:22:20.560 --> 0:22:24.600
<v Speaker 1>which meant one bulb socket connects to the next bulb

0:22:24.680 --> 0:22:28.200
<v Speaker 1>socket in the same circuit and so on. So if

0:22:28.240 --> 0:22:31.399
<v Speaker 1>you've got two two and a half volt sockets, you

0:22:31.480 --> 0:22:34.760
<v Speaker 1>end up with a load that requires five volts. If

0:22:34.760 --> 0:22:36.640
<v Speaker 1>you were to multiply two and a half volts by

0:22:36.880 --> 0:22:40.040
<v Speaker 1>I don't know, let's say forty eight, you'd get a

0:22:40.080 --> 0:22:43.320
<v Speaker 1>hundred twenty. So yeah, if you string together forty eight

0:22:43.400 --> 0:22:45.639
<v Speaker 1>light bulb sockets and each one of those is a

0:22:45.680 --> 0:22:48.359
<v Speaker 1>two and a half volt socket, you end up with

0:22:48.480 --> 0:22:51.960
<v Speaker 1>a full load what requires a hundred twenty volts. Problem

0:22:52.000 --> 0:22:54.919
<v Speaker 1>solved now. Typically companies would actually bump that up to

0:22:55.119 --> 0:22:59.960
<v Speaker 1>fifty light sockets per series, and those extra two socket

0:23:00.359 --> 0:23:03.800
<v Speaker 1>would mean that each individual bulb would be slightly, maybe

0:23:03.840 --> 0:23:07.880
<v Speaker 1>even imperceptibly dimmer than it would be if you only

0:23:07.880 --> 0:23:10.959
<v Speaker 1>had forty eight, but it wouldn't be so dim that

0:23:11.040 --> 0:23:14.879
<v Speaker 1>it would make a huge difference. So imagine a pathway

0:23:14.920 --> 0:23:18.679
<v Speaker 1>from an electric outlet that goes down a line of wires,

0:23:18.760 --> 0:23:22.199
<v Speaker 1>and those wires connect to fifty bulbs in series, so

0:23:22.280 --> 0:23:25.800
<v Speaker 1>bulb one, the bulb two, the bulb three, etcetera. This

0:23:25.880 --> 0:23:29.000
<v Speaker 1>represents the path that electricity takes, and along the way,

0:23:29.240 --> 0:23:31.960
<v Speaker 1>the electricity is doing work in the form of producing

0:23:32.040 --> 0:23:35.159
<v Speaker 1>light with those little light bulbs. And here's where a

0:23:35.280 --> 0:23:38.720
<v Speaker 1>drawback of Christmas lights comes in. Let's say one of

0:23:38.720 --> 0:23:41.639
<v Speaker 1>those bulbs burns out. Well, a burnt out bulb is

0:23:41.640 --> 0:23:45.160
<v Speaker 1>going to break that pathway for the electricity. It opens

0:23:45.240 --> 0:23:48.960
<v Speaker 1>the circuit, and because the path is broken and electricity

0:23:49.040 --> 0:23:53.200
<v Speaker 1>needs that clear unbroken path, the whole string of lights

0:23:53.320 --> 0:23:56.520
<v Speaker 1>will go out. This is how Christmas lights used to be,

0:23:56.680 --> 0:23:59.240
<v Speaker 1>where you'd have to go down a line of dark

0:23:59.320 --> 0:24:02.040
<v Speaker 1>lights and you would swap out one bulb for another.

0:24:02.480 --> 0:24:05.120
<v Speaker 1>Over and over. You would be searching for the one

0:24:05.200 --> 0:24:08.080
<v Speaker 1>bulb that caused the problem, and often it would lead

0:24:08.119 --> 0:24:11.560
<v Speaker 1>to people chucking out a string entirely and just replacing

0:24:11.560 --> 0:24:14.240
<v Speaker 1>it because trying to find that one bird's out bulb

0:24:14.280 --> 0:24:16.280
<v Speaker 1>and a string of fifty just wasn't fun. And it

0:24:16.400 --> 0:24:19.320
<v Speaker 1>was even worse if more than one bulb had been affected,

0:24:19.680 --> 0:24:23.080
<v Speaker 1>because you might replace one bad bulb and never know

0:24:23.200 --> 0:24:25.919
<v Speaker 1>it because there's a second or third bad bulb in

0:24:25.960 --> 0:24:29.120
<v Speaker 1>that same string. It was infuriating. Now, on top of that,

0:24:29.680 --> 0:24:34.040
<v Speaker 1>later electric lights would have even longer strings, like one hundred,

0:24:34.320 --> 0:24:37.760
<v Speaker 1>hundred fifty or two hundred lights. Not in order to

0:24:37.840 --> 0:24:40.920
<v Speaker 1>achieve this, because I was just talking about how if

0:24:40.960 --> 0:24:44.600
<v Speaker 1>you put these in series it creates that greater load. Well,

0:24:45.040 --> 0:24:47.639
<v Speaker 1>engineers were able to kind of cheat with this they

0:24:47.680 --> 0:24:52.600
<v Speaker 1>were using both series circuits and parallel circuits for these lights. Now,

0:24:52.640 --> 0:24:55.520
<v Speaker 1>as I mentioned, a series circuit strings one electric load

0:24:55.600 --> 0:24:59.600
<v Speaker 1>after another along the same electrical path or circuit. So

0:24:59.640 --> 0:25:01.560
<v Speaker 1>you can think of that as like one long street

0:25:01.840 --> 0:25:04.040
<v Speaker 1>with houses on either side of the street, and houses

0:25:04.080 --> 0:25:07.280
<v Speaker 1>represent the load on the electric circuit. So in this example,

0:25:07.640 --> 0:25:09.800
<v Speaker 1>with a string that has fifty lights, think of a

0:25:09.880 --> 0:25:13.960
<v Speaker 1>street and there are fifty houses twenty five on either

0:25:14.000 --> 0:25:16.080
<v Speaker 1>side of the street. So to visit a house a

0:25:16.080 --> 0:25:18.280
<v Speaker 1>little further down the street, you have to pass all

0:25:18.320 --> 0:25:22.760
<v Speaker 1>the other ones first. Parallel circuits create multiple paths, a

0:25:22.760 --> 0:25:27.080
<v Speaker 1>an independent pathway for each circuit, so different loads are

0:25:27.119 --> 0:25:30.359
<v Speaker 1>on their own distinct pathways. So with a string of

0:25:30.440 --> 0:25:33.760
<v Speaker 1>one fifty Christmas lights, for example, you would actually have

0:25:34.200 --> 0:25:39.400
<v Speaker 1>three fifty lights series circuits. Right, So you've got one

0:25:39.480 --> 0:25:43.040
<v Speaker 1>string of fifty lights in series, a second string of

0:25:43.040 --> 0:25:46.439
<v Speaker 1>fifty lights in series, and a third string of fifty

0:25:46.520 --> 0:25:49.320
<v Speaker 1>lights in series. But all three are then connected in

0:25:49.400 --> 0:25:53.000
<v Speaker 1>parallel with each other in the street analogy, this would

0:25:53.040 --> 0:25:55.960
<v Speaker 1>be like having three parallel streets that all connect to

0:25:56.000 --> 0:25:58.960
<v Speaker 1>the same main road. Now, with this kind of string

0:25:59.000 --> 0:26:01.879
<v Speaker 1>of lights, if un bulb were to go out, only

0:26:01.920 --> 0:26:05.639
<v Speaker 1>the other bulbs in that same series circuit would go dark.

0:26:06.000 --> 0:26:08.760
<v Speaker 1>So with a hundred fifty light string, it would mean

0:26:08.840 --> 0:26:11.119
<v Speaker 1>one third of those lights would go dark. Right, fifty

0:26:11.200 --> 0:26:13.480
<v Speaker 1>lights would go out, but the other one hundred would

0:26:13.480 --> 0:26:17.760
<v Speaker 1>stay lit because they were actually still in those parallel circuits.

0:26:17.800 --> 0:26:22.480
<v Speaker 1>They were independent of that one fifty light string. You

0:26:22.520 --> 0:26:24.320
<v Speaker 1>still have a problem with a third of your lights

0:26:24.359 --> 0:26:27.640
<v Speaker 1>going dark, though, Engineers figured out how to solve this

0:26:27.760 --> 0:26:32.280
<v Speaker 1>issue by creating what's called a shunt. Now, essentially, a

0:26:32.359 --> 0:26:36.879
<v Speaker 1>shunt is an alternative circuitry path that electricity can pass

0:26:36.920 --> 0:26:40.600
<v Speaker 1>through even if a load has otherwise failed. So in

0:26:40.640 --> 0:26:43.000
<v Speaker 1>this case, if a light bulb were to burn out,

0:26:43.440 --> 0:26:46.080
<v Speaker 1>the light bulb would go dark, but the shunt would

0:26:46.080 --> 0:26:49.200
<v Speaker 1>take over as the path for electricity to flow through,

0:26:49.600 --> 0:26:52.480
<v Speaker 1>and that way the other bulbs in that series would

0:26:52.520 --> 0:26:56.560
<v Speaker 1>still stay lit. So how does that work. Well, First,

0:26:57.119 --> 0:27:01.120
<v Speaker 1>the shunt is lined with insulating material and that boosts

0:27:01.240 --> 0:27:05.360
<v Speaker 1>the electric resistance of the shunt. And this is important

0:27:05.400 --> 0:27:09.560
<v Speaker 1>because if the shunt had an equal or lower electrical resistance,

0:27:10.080 --> 0:27:14.160
<v Speaker 1>then the filament inside the lightbulb, the electricity would bypass

0:27:14.200 --> 0:27:16.359
<v Speaker 1>the bulb all together and just go through the shunt.

0:27:17.359 --> 0:27:19.959
<v Speaker 1>That means you wouldn't have a string of Christmas lights. Instead,

0:27:20.040 --> 0:27:23.639
<v Speaker 1>you would have a really bad extension cord that was

0:27:23.680 --> 0:27:25.760
<v Speaker 1>eating up a lot of power. And more than that,

0:27:25.840 --> 0:27:27.879
<v Speaker 1>it would start to heat up and could potentially pose

0:27:27.960 --> 0:27:31.119
<v Speaker 1>as a fire hazard. And that's no bueno. So this

0:27:31.200 --> 0:27:34.399
<v Speaker 1>is a good opportunity to talk about short circuits. A

0:27:34.480 --> 0:27:38.439
<v Speaker 1>short circuit and I am not talking about the movie

0:27:38.560 --> 0:27:42.159
<v Speaker 1>that featured Johnny five the Robot. A short circuit is

0:27:42.200 --> 0:27:46.040
<v Speaker 1>when electricity encounters a pathway of lower resistance than the

0:27:46.080 --> 0:27:49.399
<v Speaker 1>path it is supposed to follow. And yeah, the path

0:27:49.560 --> 0:27:52.439
<v Speaker 1>of least resistance is a thing. We see it in

0:27:52.520 --> 0:27:54.879
<v Speaker 1>nature all the time. If there are multiple ways for

0:27:55.000 --> 0:27:58.480
<v Speaker 1>something to happen, the way that has the least obstacles

0:27:58.600 --> 0:28:00.800
<v Speaker 1>tends to be the one we end up with. So

0:28:01.000 --> 0:28:03.880
<v Speaker 1>electricity is going through its circuit Do do Do Do,

0:28:04.480 --> 0:28:07.720
<v Speaker 1>and suddenly there's a detour. Something has made contact with

0:28:07.760 --> 0:28:11.719
<v Speaker 1>the circuit that represents a lower resistance pathway. The electricity

0:28:11.800 --> 0:28:16.000
<v Speaker 1>takes the lower resistance pathway. That's just nature. The electricity

0:28:16.080 --> 0:28:18.600
<v Speaker 1>skips out on doing whatever it was supposed to do,

0:28:18.840 --> 0:28:22.640
<v Speaker 1>like light a light bulb, and rushes down this new path. Now,

0:28:22.720 --> 0:28:25.879
<v Speaker 1>at a steady voltage, This means you get a spike

0:28:26.000 --> 0:28:29.480
<v Speaker 1>in current. This is because the voltage is that pressure

0:28:29.520 --> 0:28:32.200
<v Speaker 1>I was talking about, and the pressure remains the same,

0:28:32.680 --> 0:28:36.040
<v Speaker 1>but the reduction and electrical resistance means it's easier for

0:28:36.080 --> 0:28:38.640
<v Speaker 1>electricity to flow through that part of the circuit. So

0:28:38.680 --> 0:28:42.360
<v Speaker 1>the current has to increase. We expressed this mathematically by

0:28:42.360 --> 0:28:48.240
<v Speaker 1>saying voltage is current times resistance, So if voltage is

0:28:48.280 --> 0:28:54.800
<v Speaker 1>staying the same, it's not changing and electrical resistance is decreasing. Current,

0:28:55.160 --> 0:28:59.280
<v Speaker 1>by mathematical definition, has to increase to make up the difference,

0:28:59.640 --> 0:29:04.400
<v Speaker 1>and increase in current can become dangerous or even deadly. Now,

0:29:04.440 --> 0:29:08.280
<v Speaker 1>because of that risk, engineers began to include fuses in

0:29:08.400 --> 0:29:12.680
<v Speaker 1>Christmas lights. The fuse in a Christmas light is kind

0:29:12.680 --> 0:29:16.360
<v Speaker 1>of a strip of thin wire that's near the plug

0:29:17.240 --> 0:29:19.400
<v Speaker 1>end of a string of lights, the part that actually

0:29:19.440 --> 0:29:21.960
<v Speaker 1>plugs into the wall. That's where the fuse is. It's

0:29:22.040 --> 0:29:25.560
<v Speaker 1>rated for a certain maximum of current, and if the

0:29:25.560 --> 0:29:29.760
<v Speaker 1>current increases beyond that maximum because of a short typically

0:29:30.160 --> 0:29:32.760
<v Speaker 1>then this wire will actually kind of burn through and

0:29:32.800 --> 0:29:35.959
<v Speaker 1>then it leaves a gap, and that gap ends up

0:29:36.000 --> 0:29:39.600
<v Speaker 1>having such a high electrical resistance that electricity cannot flow

0:29:39.680 --> 0:29:41.840
<v Speaker 1>through the string of lights and they all go dark.

0:29:42.400 --> 0:29:46.040
<v Speaker 1>So the fuse is typically replaceable, and in these strings

0:29:46.040 --> 0:29:48.000
<v Speaker 1>of lights you can even open up a little window

0:29:48.080 --> 0:29:50.240
<v Speaker 1>and put in a replacement fuse if the one that

0:29:50.280 --> 0:29:52.160
<v Speaker 1>you have in there has burnt out for any reason.

0:29:52.960 --> 0:29:55.280
<v Speaker 1>So that is sort of a safety measure in case

0:29:55.360 --> 0:29:57.200
<v Speaker 1>of a short circuit. All right, now, let's get back

0:29:57.240 --> 0:30:01.800
<v Speaker 1>to the shunt. So this insulating wire that's around this

0:30:01.800 --> 0:30:06.240
<v Speaker 1>this shunt typically wraps around the base of the filament

0:30:06.520 --> 0:30:09.120
<v Speaker 1>in a Christmas light bulb, and because it has a

0:30:09.200 --> 0:30:13.040
<v Speaker 1>higher electrical resistance than the filament does, electricity is not

0:30:13.080 --> 0:30:15.160
<v Speaker 1>going to go through the shunt normally, it'll go through

0:30:15.200 --> 0:30:20.360
<v Speaker 1>the filament instead. Now, if the filament begins to burn out,

0:30:20.760 --> 0:30:24.000
<v Speaker 1>it starts to get really hot, and that heat is

0:30:24.120 --> 0:30:27.320
<v Speaker 1>enough to melt the insulating material off of the shunt.

0:30:27.920 --> 0:30:32.240
<v Speaker 1>So the bulb burns out, the shunt wire essentially sheds

0:30:32.240 --> 0:30:35.640
<v Speaker 1>its insulation it's melted off. As a result, the shunt

0:30:35.720 --> 0:30:39.720
<v Speaker 1>becomes a lower resistance pathway for electricity, and electricity can

0:30:39.720 --> 0:30:42.360
<v Speaker 1>then pass through the light bulb socket and keep the

0:30:42.400 --> 0:30:45.760
<v Speaker 1>other lights on the series lit. It means you can

0:30:45.760 --> 0:30:48.600
<v Speaker 1>actually spot the burnout bulb in a string and replace it.

0:30:49.160 --> 0:30:51.840
<v Speaker 1>You don't have to worry about one bulb going out

0:30:51.960 --> 0:30:54.640
<v Speaker 1>and everything going out. You'll just see that one bulb

0:30:54.640 --> 0:30:57.960
<v Speaker 1>burnout and you can then swap it out. Now, one

0:30:58.080 --> 0:31:00.400
<v Speaker 1>other thing that can happen that can be for sustrating

0:31:00.480 --> 0:31:02.880
<v Speaker 1>is that some of the strings of lights are pretty

0:31:02.960 --> 0:31:06.280
<v Speaker 1>cheaply made, and the bulbs can be loose in their sockets,

0:31:06.760 --> 0:31:10.880
<v Speaker 1>and if they're not making good contact with the parts

0:31:10.880 --> 0:31:13.800
<v Speaker 1>of the socket where the electricity flows through, then you're

0:31:13.840 --> 0:31:16.600
<v Speaker 1>not gonna get electricity flowing through the series, because it'll

0:31:16.640 --> 0:31:19.280
<v Speaker 1>be like an open circuit or a circuit where the

0:31:19.280 --> 0:31:22.040
<v Speaker 1>switches in the off position. So in that case, you

0:31:22.120 --> 0:31:23.600
<v Speaker 1>have to go down the length of the wire and

0:31:23.680 --> 0:31:25.880
<v Speaker 1>check to make sure that each bulb is plugged in

0:31:25.920 --> 0:31:28.680
<v Speaker 1>properly for electricity to flow through that series of bulbs.

0:31:29.320 --> 0:31:32.600
<v Speaker 1>Some Christmas lights actually put the shunt into the socket

0:31:32.680 --> 0:31:36.120
<v Speaker 1>itself rather than inside the bulb, which helps side stuff

0:31:36.200 --> 0:31:38.400
<v Speaker 1>that problem. So in those cases, just like with a

0:31:38.440 --> 0:31:41.440
<v Speaker 1>burnt out bulb, the affected bulb would be the one

0:31:41.480 --> 0:31:43.600
<v Speaker 1>that was not lit, but the rest of it should

0:31:43.600 --> 0:31:47.680
<v Speaker 1>still be shining brightly. Now, when we come back, I'll

0:31:47.680 --> 0:31:49.920
<v Speaker 1>talk a bit more about how the series Circuits and

0:31:49.960 --> 0:31:52.560
<v Speaker 1>Christmas Lights created a headache for the electricians on the

0:31:52.600 --> 0:31:55.320
<v Speaker 1>Netflix series Stranger Things, as well as a couple of

0:31:55.320 --> 0:32:09.640
<v Speaker 1>other interesting facts. But first, let's take a quick break. Okay, So,

0:32:09.840 --> 0:32:14.080
<v Speaker 1>in case you've not seen the series Stranger Things, let

0:32:14.160 --> 0:32:17.080
<v Speaker 1>me explain why Christmas lights are important and why they

0:32:17.120 --> 0:32:19.760
<v Speaker 1>posed a big challenge to the crew of that show.

0:32:20.320 --> 0:32:23.120
<v Speaker 1>So in the show, there's a boy named Will Buyers

0:32:23.240 --> 0:32:26.200
<v Speaker 1>who is trapped in a sort of parallel dimension and

0:32:26.280 --> 0:32:30.520
<v Speaker 1>he can't interact directly with people in our dimension, but

0:32:30.560 --> 0:32:34.520
<v Speaker 1>he discovers that he can affect electrical devices. The show

0:32:34.600 --> 0:32:37.200
<v Speaker 1>is set in the nineteen eighties and Will comes from

0:32:37.200 --> 0:32:40.280
<v Speaker 1>sort of a lower middle class family and they still

0:32:40.360 --> 0:32:43.000
<v Speaker 1>have the big, bulky Christmas lights they haven't switched over

0:32:43.080 --> 0:32:47.080
<v Speaker 1>to the smaller ones. And when Will's mother, Joyce, figures

0:32:47.080 --> 0:32:50.840
<v Speaker 1>out that Will can affect these lights, she devises away

0:32:50.880 --> 0:32:53.240
<v Speaker 1>for him to communicate with her. She labels a string

0:32:53.280 --> 0:32:55.920
<v Speaker 1>of Christmas lights with letters of the alphabet, and that

0:32:55.960 --> 0:32:59.959
<v Speaker 1>means Will can effectively type out messages by making individ

0:33:00.000 --> 0:33:02.840
<v Speaker 1>will lights go off and on, which is a clever

0:33:02.880 --> 0:33:08.080
<v Speaker 1>idea for a show. It's also not how Christmas lights work, because,

0:33:08.120 --> 0:33:10.640
<v Speaker 1>as I've described in this podcast, they're supposed to all

0:33:10.680 --> 0:33:13.840
<v Speaker 1>be in series and you can't turn them off and

0:33:14.000 --> 0:33:17.960
<v Speaker 1>on individually because they're all in a series circuit. They're

0:33:18.000 --> 0:33:20.520
<v Speaker 1>strung in such a way that turning off one means

0:33:20.600 --> 0:33:22.760
<v Speaker 1>they all go off. So how did the show get

0:33:22.800 --> 0:33:27.920
<v Speaker 1>around that? Well? It was surprisingly challenging. The solution was

0:33:28.120 --> 0:33:32.440
<v Speaker 1>sort of straightforward, but it wasn't easy or convenient. The

0:33:32.480 --> 0:33:36.320
<v Speaker 1>electrician had to wire each bulb individually to a switchboard

0:33:36.560 --> 0:33:39.800
<v Speaker 1>that could supply electricity to that bulb. Now, that also

0:33:39.840 --> 0:33:42.120
<v Speaker 1>meant having to control the voltage that was going to

0:33:42.200 --> 0:33:44.960
<v Speaker 1>each bulb since they were no longer in series and

0:33:45.000 --> 0:33:47.720
<v Speaker 1>the load wouldn't be shared across the whole wire. So

0:33:48.000 --> 0:33:50.880
<v Speaker 1>you had to control the voltage to be appropriate for

0:33:51.080 --> 0:33:54.840
<v Speaker 1>the individual bulbs and then isolate it from all the

0:33:54.920 --> 0:33:57.880
<v Speaker 1>other bulbs. And you had to do it twenty six times,

0:33:58.040 --> 0:34:00.920
<v Speaker 1>or at least however many time was needed to make

0:34:00.920 --> 0:34:03.760
<v Speaker 1>sure all the letters that were being used were wired

0:34:03.840 --> 0:34:06.160
<v Speaker 1>up properly. You might have been able to get away

0:34:06.200 --> 0:34:09.279
<v Speaker 1>without wiring up say X or Z or some of

0:34:09.320 --> 0:34:12.719
<v Speaker 1>the other letters that aren't a common The switchboard was

0:34:12.800 --> 0:34:15.920
<v Speaker 1>effectively a keyboard, so you could like press the a

0:34:16.080 --> 0:34:18.840
<v Speaker 1>button that would activate a switch, and the switch would

0:34:18.840 --> 0:34:23.120
<v Speaker 1>open the circuit, meaning it breaks the pathway, And because

0:34:23.160 --> 0:34:25.960
<v Speaker 1>it breaks the pathway, the light would go out. And

0:34:26.080 --> 0:34:28.560
<v Speaker 1>if you close the circuit, if you close the switch,

0:34:28.640 --> 0:34:30.799
<v Speaker 1>that would restore the pathway the light bulb would come

0:34:30.840 --> 0:34:35.200
<v Speaker 1>on again. So that wiring was probably a huge pain

0:34:35.239 --> 0:34:37.399
<v Speaker 1>in the neck because it meant having to do this

0:34:37.480 --> 0:34:40.640
<v Speaker 1>for multiple letters and making sure each set of wires

0:34:40.640 --> 0:34:43.600
<v Speaker 1>had the appropriate label on the switchboard, not to mention

0:34:43.640 --> 0:34:45.960
<v Speaker 1>being sure that no bulb was going to get too

0:34:46.040 --> 0:34:48.560
<v Speaker 1>much voltage for it to handle. And on top of that,

0:34:48.719 --> 0:34:52.920
<v Speaker 1>the wiring had to be hidden so the camera would

0:34:52.920 --> 0:34:54.879
<v Speaker 1>make it look like it was just a normal string

0:34:54.920 --> 0:34:58.800
<v Speaker 1>of Christmas lights. You couldn't see all these individual wires

0:34:58.800 --> 0:35:02.759
<v Speaker 1>going to each bulb. It would break the illusion. So

0:35:02.960 --> 0:35:05.640
<v Speaker 1>while you wouldn't call this a high tech special effect,

0:35:05.760 --> 0:35:08.239
<v Speaker 1>it was one that required a lot of work and

0:35:08.320 --> 0:35:10.720
<v Speaker 1>trial by error to get it just right to produce

0:35:10.760 --> 0:35:13.759
<v Speaker 1>the effect that the series directors were looking for. Now,

0:35:13.760 --> 0:35:17.080
<v Speaker 1>we're not quite done with the evolution of Christmas lights.

0:35:17.080 --> 0:35:19.640
<v Speaker 1>We've got a few more things to chat about. As

0:35:19.680 --> 0:35:24.280
<v Speaker 1>the novelty song The Twelve Pains of Christmas reveals Christmas

0:35:24.360 --> 0:35:28.280
<v Speaker 1>lights present their own frustrating challenges. If they're not stored properly,

0:35:28.360 --> 0:35:31.239
<v Speaker 1>they become a tangled mess. There's the problem of one

0:35:31.320 --> 0:35:33.640
<v Speaker 1>going out and then they all go out. If you

0:35:33.680 --> 0:35:37.200
<v Speaker 1>have a shuntless kind of string of Christmas lights at

0:35:37.239 --> 0:35:39.480
<v Speaker 1>any rate, then there's the line that used to make

0:35:39.520 --> 0:35:41.640
<v Speaker 1>me crack up as a kid. This will tell you

0:35:41.680 --> 0:35:44.840
<v Speaker 1>how sophisticated my sense of humor was, and who my

0:35:44.920 --> 0:35:48.840
<v Speaker 1>kidding still is. The line is, now, why the hell

0:35:48.920 --> 0:35:53.359
<v Speaker 1>are they all blinking? Yeah, blinking lights? Okay, there are

0:35:53.360 --> 0:35:57.480
<v Speaker 1>two general ways of creating blinking Christmas lights if you're

0:35:57.520 --> 0:36:01.680
<v Speaker 1>a manufacturer. One of those ways is brilliantly simple and

0:36:01.760 --> 0:36:04.320
<v Speaker 1>kind of jankie. So let's go with that one first.

0:36:04.840 --> 0:36:08.200
<v Speaker 1>All right, So let's say get a couple of different metals,

0:36:08.280 --> 0:36:11.360
<v Speaker 1>and you create a strip using these two different metals.

0:36:11.360 --> 0:36:14.080
<v Speaker 1>Maybe one side is copper and the other side is

0:36:14.560 --> 0:36:17.880
<v Speaker 1>you know, iron or something. These two metals have slightly

0:36:17.880 --> 0:36:20.440
<v Speaker 1>different properties, and one of the different properties they have

0:36:20.760 --> 0:36:24.440
<v Speaker 1>is their rate of expansion when they get hot. Because

0:36:24.440 --> 0:36:28.160
<v Speaker 1>one metal will expand faster than the other, it causes

0:36:28.239 --> 0:36:31.440
<v Speaker 1>the strip to bend, it curls as one side of

0:36:31.480 --> 0:36:34.520
<v Speaker 1>the strip expands faster than the other one does. These

0:36:34.520 --> 0:36:38.040
<v Speaker 1>are called bimetallic strips, and they're using lots of stuff

0:36:38.080 --> 0:36:42.799
<v Speaker 1>like thermostats, but thermostats are a different podcast. Alright, So

0:36:43.040 --> 0:36:45.920
<v Speaker 1>you've got this bimetallic strip and you use it to

0:36:45.960 --> 0:36:48.840
<v Speaker 1>make a circuit path to a filament on a light bulb.

0:36:49.320 --> 0:36:52.280
<v Speaker 1>So the strip itself is acting like a kind of wire.

0:36:52.320 --> 0:36:55.880
<v Speaker 1>Electricity is passing through the strip to the filament, But

0:36:55.920 --> 0:36:58.160
<v Speaker 1>then the filament starts to heat up, and when it

0:36:58.160 --> 0:37:00.760
<v Speaker 1>heats up, it causes the strip to start to bend.

0:37:00.920 --> 0:37:03.240
<v Speaker 1>Because of that expansion thing I was just talking about.

0:37:03.719 --> 0:37:06.240
<v Speaker 1>The strip bends to a point where it no longer

0:37:06.280 --> 0:37:09.920
<v Speaker 1>makes contact with the filament, and since the electricity was

0:37:09.960 --> 0:37:13.520
<v Speaker 1>flowing through the strip, it means the electrical path is broken,

0:37:13.640 --> 0:37:16.120
<v Speaker 1>right because there's no more contact between the strip and

0:37:16.160 --> 0:37:19.279
<v Speaker 1>the filament, no more electricity goes to the filament, and

0:37:19.360 --> 0:37:23.000
<v Speaker 1>so the light blinks out. Further, This bulb, called a

0:37:23.040 --> 0:37:26.600
<v Speaker 1>blinker bulb, doesn't have a shunt in it, so when

0:37:26.600 --> 0:37:29.200
<v Speaker 1>it goes out, all the other lights in that series

0:37:29.239 --> 0:37:32.160
<v Speaker 1>blink out at the same time. Then the bimetallic strip

0:37:32.200 --> 0:37:35.520
<v Speaker 1>begins to cool down because the filament is no longer glowing,

0:37:35.680 --> 0:37:38.040
<v Speaker 1>so it's no longer putting off heat. And as it

0:37:38.040 --> 0:37:40.520
<v Speaker 1>begins to cool down, it straightens out again. And when

0:37:40.560 --> 0:37:43.560
<v Speaker 1>it straightens out, it makes contact with the filament, which

0:37:43.600 --> 0:37:46.879
<v Speaker 1>causes the circuit to re establish and the lights come

0:37:46.880 --> 0:37:50.120
<v Speaker 1>on again. This process repeats itself over and over until

0:37:50.160 --> 0:37:52.520
<v Speaker 1>the blinker bulb finally burns out and you have to

0:37:52.560 --> 0:37:55.400
<v Speaker 1>replace the darn thing. Now, I love this approach because

0:37:55.480 --> 0:37:58.680
<v Speaker 1>it's a low tech, practical way to create blinking lights,

0:37:59.000 --> 0:38:01.600
<v Speaker 1>and it even includes a little mechanical element in the

0:38:01.640 --> 0:38:07.399
<v Speaker 1>form of those bending strips. I think it's pun intended brilliant. Now,

0:38:07.440 --> 0:38:10.920
<v Speaker 1>the other way to make blinking lights is also brilliant,

0:38:11.000 --> 0:38:14.160
<v Speaker 1>but it's a bit more sophisticated. There are strings of

0:38:14.239 --> 0:38:18.600
<v Speaker 1>lights that come with sixteen function controllers. These controllers have

0:38:18.680 --> 0:38:22.400
<v Speaker 1>four transistors, each of which drives a separate strand of lights,

0:38:23.000 --> 0:38:25.960
<v Speaker 1>so the full string of lights is made up of

0:38:26.080 --> 0:38:30.760
<v Speaker 1>four strands of lights. Further, these lights on these these

0:38:30.800 --> 0:38:35.200
<v Speaker 1>full strands are in an interleaving pattern, meaning that you

0:38:35.239 --> 0:38:37.880
<v Speaker 1>don't just get all the lights in one strand followed

0:38:37.920 --> 0:38:40.080
<v Speaker 1>by all the lights in the second strand and so on.

0:38:40.880 --> 0:38:44.680
<v Speaker 1>The string would interleave these strands, so you could have

0:38:44.760 --> 0:38:48.520
<v Speaker 1>something like light one from Strand one, light one from

0:38:48.560 --> 0:38:52.319
<v Speaker 1>strand to, light one from Strand three, light one from

0:38:52.320 --> 0:38:55.839
<v Speaker 1>Strand four, light two from Strand one, and so on.

0:38:56.280 --> 0:38:58.640
<v Speaker 1>And that way you can apply different effects to each

0:38:58.880 --> 0:39:01.919
<v Speaker 1>strand in the full string, and you could get really

0:39:01.960 --> 0:39:04.759
<v Speaker 1>interesting results. Otherwise you might end up with a tree

0:39:04.840 --> 0:39:07.560
<v Speaker 1>in which the first fifty lights are blinking, the next

0:39:07.600 --> 0:39:10.160
<v Speaker 1>fifty lights are fading in and out, the next fifty

0:39:10.200 --> 0:39:13.359
<v Speaker 1>are twinkling, etcetera. So by doing it this way, you

0:39:13.400 --> 0:39:16.520
<v Speaker 1>can have that effects spread out throughout the entire string

0:39:16.760 --> 0:39:20.120
<v Speaker 1>of lights, and you get a more interesting, varied effect.

0:39:20.760 --> 0:39:23.880
<v Speaker 1>More recently, we've seen LED lights start to replace the

0:39:23.880 --> 0:39:28.000
<v Speaker 1>old incandescent many lights. The incandescent bulbs work by feeding

0:39:28.000 --> 0:39:30.719
<v Speaker 1>electricity through a filament which heats up and gives off light,

0:39:30.960 --> 0:39:33.920
<v Speaker 1>but LED lights generate light in a totally different way.

0:39:34.280 --> 0:39:37.160
<v Speaker 1>L E D s have electrons moving through a semiconductor material.

0:39:37.520 --> 0:39:40.480
<v Speaker 1>Now I've talked about this in past episodes, and frankly,

0:39:40.480 --> 0:39:42.480
<v Speaker 1>I'm running out of time in this episode, so I

0:39:42.480 --> 0:39:44.480
<v Speaker 1>don't feel like I can really go into a lot

0:39:44.480 --> 0:39:47.320
<v Speaker 1>of detail here about how it works, but from a

0:39:47.440 --> 0:39:50.319
<v Speaker 1>sub atomic level, here's what's going on. You've got an

0:39:50.360 --> 0:39:53.880
<v Speaker 1>electron inhabiting a certain energy shell around the nucleus of

0:39:53.880 --> 0:39:56.799
<v Speaker 1>an atom. You pour some energy into that atom that

0:39:56.920 --> 0:39:59.839
<v Speaker 1>causes the electron to jump to a higher energy shell

0:40:00.040 --> 0:40:02.960
<v Speaker 1>a little further out from the atoms nucleus. But then

0:40:03.000 --> 0:40:05.360
<v Speaker 1>you cut off the energy that's going into the atom,

0:40:05.560 --> 0:40:08.000
<v Speaker 1>and the electrons natural state is to be closer to

0:40:08.040 --> 0:40:10.319
<v Speaker 1>the nucleus. But in order to move back to where

0:40:10.320 --> 0:40:12.600
<v Speaker 1>it's supposed to be at first has to give off

0:40:12.800 --> 0:40:16.120
<v Speaker 1>that excess energy, which it does so by emitting the

0:40:16.239 --> 0:40:19.200
<v Speaker 1>energy in the form of photons or light, and they

0:40:19.239 --> 0:40:23.040
<v Speaker 1>do it in very specific frequencies, so with different semiconductors

0:40:23.080 --> 0:40:26.120
<v Speaker 1>you can produce different colors of light. One nice thing

0:40:26.120 --> 0:40:28.439
<v Speaker 1>about L E d s is that when an LED

0:40:28.680 --> 0:40:32.439
<v Speaker 1>light fails, which typically takes a long time, LED lights

0:40:32.480 --> 0:40:36.239
<v Speaker 1>tend to last much longer than incandescent lights. Anyway, the

0:40:36.280 --> 0:40:38.680
<v Speaker 1>failed L E ED can still serve as a pathway

0:40:38.680 --> 0:40:41.880
<v Speaker 1>for electricity to flow through, so the other lights on

0:40:41.880 --> 0:40:44.960
<v Speaker 1>the string will continue to stay lit. It's more or

0:40:45.080 --> 0:40:47.800
<v Speaker 1>less that like the L E ED is is in itself,

0:40:47.840 --> 0:40:52.200
<v Speaker 1>acting like a shunt. Led lights, just like other Christmas lights,

0:40:52.200 --> 0:40:54.840
<v Speaker 1>tend to be wired in series, and you have multiple

0:40:54.880 --> 0:40:57.560
<v Speaker 1>series of lights wired in parallel on a single string.

0:40:58.120 --> 0:41:00.640
<v Speaker 1>And another great thing about LED lights is that they

0:41:00.640 --> 0:41:04.440
<v Speaker 1>typically require way less energy to run, so you can

0:41:04.520 --> 0:41:07.080
<v Speaker 1>run them longer and for less money in the long

0:41:07.160 --> 0:41:10.319
<v Speaker 1>run than you can with classic incandescent bulbs. They tend

0:41:10.360 --> 0:41:14.319
<v Speaker 1>to be more expensive than incandescent bulb lights are on

0:41:14.480 --> 0:41:17.080
<v Speaker 1>initial purchase, but in the long run you actually save

0:41:17.120 --> 0:41:19.480
<v Speaker 1>money by using those, and you save a lot of energy.

0:41:19.560 --> 0:41:22.480
<v Speaker 1>So highly recommended h and one type of bulb I

0:41:22.520 --> 0:41:25.239
<v Speaker 1>didn't mention, I skipped over it, but this was a

0:41:25.280 --> 0:41:28.880
<v Speaker 1>favorite of mine when I was growing up are bubble lights,

0:41:28.920 --> 0:41:31.399
<v Speaker 1>which made a comeback not too long ago, but these

0:41:31.440 --> 0:41:34.200
<v Speaker 1>were like common when I was a kid. These lights

0:41:34.200 --> 0:41:37.640
<v Speaker 1>have a fluid with a relatively low boiling point, and

0:41:37.680 --> 0:41:40.720
<v Speaker 1>it's inside of a glass tube and at the base

0:41:40.760 --> 0:41:43.360
<v Speaker 1>of the tube is an incandescent bulb. So when the

0:41:43.400 --> 0:41:46.040
<v Speaker 1>bulb lights up, it gives off heat. Then eventually that

0:41:46.120 --> 0:41:49.200
<v Speaker 1>heat reaches the temperature sufficient to bring the liquid inside

0:41:49.200 --> 0:41:53.000
<v Speaker 1>the tube to a boil, which produces bubbles inside the tube.

0:41:53.440 --> 0:41:56.279
<v Speaker 1>Now we had these on our Christmas trees when I

0:41:56.400 --> 0:41:59.200
<v Speaker 1>was a kid, and I thought they were super awesome.

0:41:59.719 --> 0:42:02.719
<v Speaker 1>The early versions of these lights used a very lightweight

0:42:02.719 --> 0:42:06.200
<v Speaker 1>oil as the liquid, but more modern versions tend to

0:42:06.200 --> 0:42:10.000
<v Speaker 1>rely upon die chlora methane, which has a boiling point

0:42:10.080 --> 0:42:13.360
<v Speaker 1>of thirty nine point six degrees celsius or a hundred

0:42:13.360 --> 0:42:17.279
<v Speaker 1>three point three degrees fahrenheit. Oh And on the other

0:42:17.360 --> 0:42:20.239
<v Speaker 1>end of the spectrum are the projector systems being used

0:42:20.239 --> 0:42:22.839
<v Speaker 1>to create all sorts of effects on house exteriors, like

0:42:23.360 --> 0:42:28.320
<v Speaker 1>snowfall or I don't know, an ELF strike team descending

0:42:28.360 --> 0:42:31.880
<v Speaker 1>on a house. These projectors typically use LEDs to generate

0:42:31.960 --> 0:42:35.319
<v Speaker 1>lasers to create the light needed for the projection. The

0:42:35.400 --> 0:42:39.400
<v Speaker 1>light passes through lenses that magnify whatever images are being

0:42:39.440 --> 0:42:42.840
<v Speaker 1>displayed and then shoots them up so that they appear

0:42:42.880 --> 0:42:45.600
<v Speaker 1>on the side of a house. And lasers are pretty nifty.

0:42:46.120 --> 0:42:48.920
<v Speaker 1>They're also super technical, and I've talked about them another episodes,

0:42:48.920 --> 0:42:51.919
<v Speaker 1>so I won't go into detail here, but I wanted

0:42:51.920 --> 0:42:54.359
<v Speaker 1>to mention them because it's another high tech gadget being

0:42:54.400 --> 0:42:57.759
<v Speaker 1>used in holiday decorations these days. Also, um, if you

0:42:57.800 --> 0:42:59.760
<v Speaker 1>have one of these things, make sure that it's pointed

0:43:00.000 --> 0:43:03.360
<v Speaker 1>at your house and not the sky, because lasers have

0:43:03.440 --> 0:43:06.080
<v Speaker 1>been known to cause problems for pilots because that light

0:43:06.120 --> 0:43:09.200
<v Speaker 1>can be seriously powerful, so you know, just be responsible.

0:43:10.320 --> 0:43:12.640
<v Speaker 1>There are other lights I can mention. They're like micro

0:43:12.840 --> 0:43:16.399
<v Speaker 1>lights and mesh lights and icicle lights, but essentially all

0:43:16.440 --> 0:43:19.239
<v Speaker 1>of these are variations upon the stuff I've already talked

0:43:19.239 --> 0:43:22.200
<v Speaker 1>about in this episode. And then there are the Christmas

0:43:22.320 --> 0:43:25.760
<v Speaker 1>light displays that synchronize the lights with the soundtrack using

0:43:25.880 --> 0:43:29.279
<v Speaker 1>various micro controllers and sequencers. And maybe I'll do a

0:43:29.280 --> 0:43:31.360
<v Speaker 1>full episode about that kind of stuff in the future,

0:43:31.920 --> 0:43:35.120
<v Speaker 1>but for now, I say it's time for lights out.

0:43:35.960 --> 0:43:39.160
<v Speaker 1>I hope you enjoyed that episode from two thousand nineteen

0:43:39.160 --> 0:43:41.359
<v Speaker 1>on lighting up the Holidays. I hope that your own

0:43:41.400 --> 0:43:45.560
<v Speaker 1>holidays have been happy, healthy and safe. I hope you're

0:43:45.600 --> 0:43:48.440
<v Speaker 1>staying warm wherever you are, unless you're in Australia, in

0:43:48.480 --> 0:43:51.640
<v Speaker 1>which case I hope you're staying cool. And I look

0:43:51.680 --> 0:43:54.759
<v Speaker 1>forward to chatting with you again tomorrow. I should be

0:43:54.800 --> 0:43:58.360
<v Speaker 1>back with more episodes about the big tech news stories

0:43:58.680 --> 0:44:01.839
<v Speaker 1>of two because gosh darn it, there were just so

0:44:01.880 --> 0:44:05.359
<v Speaker 1>many this past year. And let me know what else

0:44:05.400 --> 0:44:08.440
<v Speaker 1>you would like me to chat about in three by

0:44:08.440 --> 0:44:10.799
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0:44:10.920 --> 0:44:14.279
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0:44:14.280 --> 0:44:17.319
<v Speaker 1>i Heart Radio app for free and navigate on over

0:44:17.320 --> 0:44:19.880
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0:44:19.960 --> 0:44:22.520
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0:44:22.600 --> 0:44:25.160
<v Speaker 1>up to thirty seconds in length and tell me there

0:44:25.520 --> 0:44:28.879
<v Speaker 1>and until then, I'll talk to you again really soon.

0:44:33.640 --> 0:44:36.839
<v Speaker 1>Tech Stuff is an I heart Radio production. For more

0:44:36.920 --> 0:44:40.320
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