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Speaker 1: how Stuff Works dot Com, available now exclusively on iTunes. Hi, There, everybody,
Speaker 1: and welcome to tech Stuff. My name is Chris Polette.
Speaker 1: I'm an editor here at how stuff works dot com,
Speaker 1: and sitting next to me, as usual, is the very
Speaker 1: helpful senior writer Jonathan Strickland. You know what I think
Speaker 1: you need help? Do I? Yes, when I need help?
Speaker 1: Do you? Because you're in the United States that it
Speaker 1: occurred to me after we researched this that it is
Speaker 1: once again a very United States centric podcast, So we
Speaker 1: apologize to our friends overseas and to the north and South.
Speaker 1: And okay, okay, well, let's let's just say, how does
Speaker 1: a rescue number fill in the blank? Here? You know
Speaker 1: where you are. Well, you're making some pretty big assumptions there, Pete,
Speaker 1: because I haven't looked into any others other than one. Okay, well,
Speaker 1: I think the technology is basically there, so let's talk
Speaker 1: about the same. Alright, So let's first talk about how
Speaker 1: nine one one is set up. We were gonna really
Speaker 1: focus kind of on on how it works when you're
Speaker 1: using a cellular phone or heaven help you avoid phone. Um.
Speaker 1: But but before we get into that, it's best to
Speaker 1: know kind of the basics of how it works in
Speaker 1: the first place. Sure, I mean, it wasn't all that
Speaker 1: long ago that there wasn't any kind of standardized number,
Speaker 1: you know. You know, it's only been since the mid
Speaker 1: nineteen sixties that for the sixties eight was when the
Speaker 1: first one went live, right, Well, I mean they had to,
Speaker 1: you know, work on getting it organized and it wasn't
Speaker 1: even a national thing. It is very localized and it's
Speaker 1: still listen, it's it's it is. It is very much
Speaker 1: a regional system. So um, yeah, there's no national system.
Speaker 1: It's all uh managed by by different counties and cities.
Speaker 1: Yeah yeah, different uh, different governments and and different regions
Speaker 1: are overseeing these things. So as you can imagine, coordination
Speaker 1: is a is kind of a tricky, tricky business. One
Speaker 1: and um, usually you know you're you're pretty much supporting
Speaker 1: it through taxes and uh maybe a fee to your
Speaker 1: phone carrier. Yeah, yeah, I mean it's uh. In addition
Speaker 1: to building out the network, they have to pay people
Speaker 1: to sit at the switchboard and listen to people with
Speaker 1: emergency calls and those people who call to complain about
Speaker 1: traffic and that there are no chicken nuggets at the McDonald's.
Speaker 1: You totally stole it before I could say it. Yes,
Speaker 1: I win, okay, so um, yes, uh, let's let's say
Speaker 1: let's start with the landline um approach, because that that's
Speaker 1: the easiest one to talk about when you're when you're
Speaker 1: making a call, and it is the first one they
Speaker 1: had to, uh to worry about building out. Right, so
Speaker 1: when you actually dial, it goes to a different hub.
Speaker 1: It doesn't actually go to the same hub that regular
Speaker 1: phone call will go, right, because the phone company knows
Speaker 1: when you make a phone call, it has to that's right,
Speaker 1: that's right for them to bill you exactly exactly. So
Speaker 1: when you make a nine one one call, the phone
Speaker 1: company knows you're making an emergency call. It goes through
Speaker 1: this hub and then it goes to the closest public
Speaker 1: Safety Answering Point or P s a P SAP SAP,
Speaker 1: so it goes to the closest one to whatever region
Speaker 1: you're calling from. So that way the response is going
Speaker 1: to be very localized and theoretically will be the fastest
Speaker 1: response that you could expect under you know, any normal circumstances. Now, UM,
Speaker 1: when you call the the phone company sends to that
Speaker 1: SAP P s a P. That the your information, so
Speaker 1: that person will know the operator will know like this
Speaker 1: is where the phone calls originating. UM, in case you
Speaker 1: aren't able to speak, If you are unable to actually talk, UH,
Speaker 1: they can at least see where the calls coming from
Speaker 1: and send help to that address. And this happens, you know,
Speaker 1: more often than you would think. You may not be
Speaker 1: able to speak because you smoke inhalation, you might be
Speaker 1: choking on something. In some cases, people's pets have dialed
Speaker 1: dialed one, and in some cases it was necessary. I
Speaker 1: mean more than one case you had an animal dial
Speaker 1: nine one one and it really didn't need to do that.
Speaker 1: But but there are stories about rescue animals that did
Speaker 1: dial nine one in order to contact UH emergency services
Speaker 1: when their their owners. UM suffered some sort of trauma
Speaker 1: and uh, you know, of course that doesn't happen all
Speaker 1: that often. But the way the system works is the
Speaker 1: operator sees, okay, this call is coming from this address,
Speaker 1: I will send help there. I can't quite ascertain exactly
Speaker 1: what's going on, and so they, you know, pretty much
Speaker 1: decide at the spur of the moment which services to send. UM. Otherwise,
Speaker 1: of course the dispatcher will talk to the you know,
Speaker 1: the operator or dispatch will talk to you, and then
Speaker 1: you would explain what the emergency situation was, and then
Speaker 1: they would send the appropriate respond respondents. Right. So UM,
Speaker 1: that's the that's just the basic uh response. There's actually
Speaker 1: another thing called the enhanced nine one one response, which
Speaker 1: is even a little more complex than that. Yeah, E
Speaker 1: nine one one is UM actually fairly common now, I
Speaker 1: would think, yeah, yeah, back in two thousand and six,
Speaker 1: I think it was penetration in the market, So by
Speaker 1: now I would expect that number to be much higher.
Speaker 1: So UM, and it actually uses an even more sophisticated system.
Speaker 1: The hub that you dial into UM actually makes some
Speaker 1: additional determinations, goes in and get some info from a
Speaker 1: couple of servers on the telephone system side to try
Speaker 1: to get even more detailed information about where you are
Speaker 1: and and who to route the call to to maybe
Speaker 1: speed up the service just that much more. Right, Yeah,
Speaker 1: you're talking about things like, you know, to everything from
Speaker 1: determining how many emergency calls are already out to you know,
Speaker 1: maybe maybe this person's address would make you think that
Speaker 1: they are closest to this P s a P, but
Speaker 1: in reality they'd be closer to another one. Um. It
Speaker 1: also will bring up information such as what what sort
Speaker 1: of obstacles a response team might encounter en route to
Speaker 1: the address, like if there's a street that's closed or
Speaker 1: anything along those lines. Um. So it really is of
Speaker 1: course designed to help these emergency responders get to you
Speaker 1: much more quickly and safely than they would otherwise. And
Speaker 1: as it turns out, this enhanced nine one one functionality
Speaker 1: is essential to getting wireless nine one functionality to to
Speaker 1: actually function the right way, because otherwise it would be
Speaker 1: very difficult for the the wireless provider to get the
Speaker 1: information on where you are now. You know, a cell
Speaker 1: phone can only be so accurate as to where they
Speaker 1: can figure out where your location is because it's triangulating
Speaker 1: based on the signals from different cell phone towers in
Speaker 1: your area. Uh. So it's a little like GPS in
Speaker 1: that way, because it is is determining your location based
Speaker 1: on the transmitters on the ground and where the phone
Speaker 1: is telling it that it is. You know, it seems
Speaker 1: closer to this one, it seems rather away from that one.
Speaker 1: We think he or she is in this area right here.
Speaker 1: And UM, this is important because around of all phone
Speaker 1: calls that go into originate from a wireless phone like
Speaker 1: a cell phone. And UM, obviously when you have that
Speaker 1: that number of calls coming in, you do need a
Speaker 1: way that you can, you know, retained where this person is. Um.
Speaker 1: There are a couple of different ways of doing this
Speaker 1: besides the one you mentioned is probably the most common. Uh.
Speaker 1: That one is the uh it's a network based location
Speaker 1: finding is kind of the way we think of it.
Speaker 1: It's in the sense that it's all based upon how
Speaker 1: far away you are from at least usually I think
Speaker 1: three towers that's what they need in order to to
Speaker 1: determine where in general you are. I think that's the
Speaker 1: number that I saw most frequently. And yeah, it's it's
Speaker 1: accurate to between one dred three, which is you know,
Speaker 1: not that bad considering, but there's if you're you know,
Speaker 1: in your car and it's on fire with flame shooting
Speaker 1: out through the hood, I think they'd probably be able
Speaker 1: to find you once they got once they got within
Speaker 1: three they probably be able to figure out what they know.
Speaker 1: But the other way you can do this is actually
Speaker 1: using a handheld device like your Your phone itself has
Speaker 1: within it a location device that would help in that.
Speaker 1: If you have a phone that has a GPS receiver,
Speaker 1: it could it could send the information it's receiving from
Speaker 1: the satellite on through the signal and therefore give extremely
Speaker 1: accurate location information to whomever's on the phone. Right, So
Speaker 1: it's getting the the information from the GPS and sending
Speaker 1: it over the cell phone network, right, That's exactly what
Speaker 1: it's doing. However, you have to keep in mind if
Speaker 1: you're inside, that's not going to help you out too much.
Speaker 1: You really need to have an open view to the
Speaker 1: sky in order to to really get those signals from
Speaker 1: the satellites. Uh, if you are in any kind of
Speaker 1: like heavily wooded area or maybe downtown in a really
Speaker 1: crowded city, um, it may not respond as well. So
Speaker 1: that's not always necessarily, Like, just because you have a
Speaker 1: GPS receiver in your phone doesn't necessarily mean it's going
Speaker 1: to give it the most accurate information all the time.
Speaker 1: It all depends on the situation you're in and the
Speaker 1: environment around you. That's true, because I'm guessing that if
Speaker 1: you were saying in a the story building and you
Speaker 1: have a GPS device and it's saying, well, you know
Speaker 1: he's here at this location, then the rescuers have to
Speaker 1: go look on every floor because it doesn't say, well,
Speaker 1: you know he's on the fifth floor and sweet five forty,
Speaker 1: so well yeah, yeah, so even if it could get
Speaker 1: the signal in the first place, so there, so there
Speaker 1: is a limit, Yeah, there are there are limits. And
Speaker 1: the whole reason for this in the first place is
Speaker 1: because the the FCC was very much concerned with making
Speaker 1: sure that when you dial nine one one on a
Speaker 1: cell phone that you are able to get the help
Speaker 1: that you require, and uh, they demanded demanded things to
Speaker 1: be rolled out the sort of the enhanced nine one
Speaker 1: one for cell phones to be rolled out into two phases.
Speaker 1: The first phase was just using location determining your location
Speaker 1: will be determined based upon whichever cell tower you are
Speaker 1: connecting to with your phone, and unfortunately that doesn't really
Speaker 1: give you a whole lot of accuracy. We're talking like
Speaker 1: six to thirty miles, and six to thirty miles is
Speaker 1: not great. Now, hopefully, if you are actually able to
Speaker 1: communicate with the operator, that won't be as big a
Speaker 1: deal because you'll be able to tell that person where
Speaker 1: you are right right under Phase two. It's it's much
Speaker 1: more accurate within fifty according to the government information. And uh,
Speaker 1: I was actually looking into this now. Here's the other
Speaker 1: issue is that you might wonder, like, okay, well, how
Speaker 1: far into phase two are we? That is practically impossible
Speaker 1: to answer without contacting each and every P s A
Speaker 1: P in the nation because it's on a per carrier basis.
Speaker 1: It's on a per P S a P basis. They
Speaker 1: have to work together in order to get this Phase
Speaker 1: two rolled out. So um yeah, it's I couldn't even
Speaker 1: tell you, like, how how many different locations have Phase
Speaker 1: two rolled out versus Phase one? Um, it's uh and
Speaker 1: that's kind of scary when you think about it. I mean,
Speaker 1: you know, you really don't know when you call nine
Speaker 1: one one if how accurate their their information is going
Speaker 1: to be um. Of course if you can talk, then
Speaker 1: that might be able to solve some issues right there.
Speaker 1: But yeah, you know, uh, just to point this out, UM,
Speaker 1: from what I was reading during my research fees on
Speaker 1: this podcast, Uh, the experts say the very first thing
Speaker 1: you should do when you call nine one one is
Speaker 1: to tell them where you are. Um. Especially yeah, exactly
Speaker 1: because they said that that that is probably the most
Speaker 1: important thing, especially if you're in a situation where you're
Speaker 1: not able to communicate well, because um, you know, then
Speaker 1: they can go ahead and figure out how to get
Speaker 1: to you and from there, you know, assist you. But yeah,
Speaker 1: that's you know, don't forget to just go ahead and
Speaker 1: tell them where you are, um, because that is is
Speaker 1: essential when you're dealing with wireless and v O I P.
Speaker 1: I didn't think to at this in my notes, But
Speaker 1: we should also addressed the fact that if you carry
Speaker 1: a satellite phone, that can give information very quickly to
Speaker 1: an emergency response team exactly where you are. Because again
Speaker 1: that's working on the same sort of of uh kind
Speaker 1: of way as a GPS receiver. You're receiving yourself signals
Speaker 1: through satellite UM, and there are many satellite emergency phones
Speaker 1: that are on the market for people who like, you know,
Speaker 1: like to hike in the Yukon. Sure's things like that.
Speaker 1: You know, people who really do go into these you know,
Speaker 1: high risk environments because they're they're adventurers at heart, and uh,
Speaker 1: these sort of phones help help get that information out.
Speaker 1: And usually it's a simple button you press and it
Speaker 1: sends an emergency signal and it includes your coordinates like
Speaker 1: on Star in cars. Yeah, essentially, yeah, it's on Star
Speaker 1: for hikers. Yeah. And very expensive. Yes, yes, they are
Speaker 1: not cheap. Yeah, we're not talking like your voice plan.
Speaker 1: I think they're significantly right. Both the phones and the
Speaker 1: plans cost quite an out of money. But if it's
Speaker 1: a matter of life and death because you're an adventurer
Speaker 1: and like like to go out and you know, party
Speaker 1: with grizzly bears who might eat you and who doesn't write,
Speaker 1: you know, I might be worth the investment. So let's
Speaker 1: move on to voipe over Internet protocol. That's true. Now,
Speaker 1: voice over Internet protocol we've talked about before in this podcast.
Speaker 1: This is uh, yeah, this is uh, this is It
Speaker 1: sends your phone call like it would send it sends
Speaker 1: it over the internet esppecially over the cellular network, and uh,
Speaker 1: like every other kind of information that's sent over the
Speaker 1: internet's broken up into packets, gets little pieces, teeny tiny
Speaker 1: pieces like you know, like a Mike TV and Willy
Speaker 1: Wonka flies through the air, and it gets to the
Speaker 1: other side and gets re it gets put back together,
Speaker 1: and then it becomes the phone call on the other end. Uh.
Speaker 1: Here's the problem with voipe. Um, there's no physical location
Speaker 1: associated with voipe at all at all. You your voice
Speaker 1: is associated mainly with your computer or device upon which
Speaker 1: you have voipe installed. That's true, I mean there is
Speaker 1: you know, you can ping something a location and get
Speaker 1: as sort of an idea of where it's going to
Speaker 1: because you know, and internet. Anything you send through the
Speaker 1: Internet reaches lots of computers, tons and tons and tons
Speaker 1: of computers because it's it's bouncing piece by piece over
Speaker 1: you know, network by network, different stuff in between here
Speaker 1: and there. The thing is, you know, there's very it's
Speaker 1: this information that's coming around with it is very sketchy.
Speaker 1: So it's you know, it's general idea of where someone is.
Speaker 1: But the other thing is that, um, you know, it's
Speaker 1: it's you can set a location when you set up
Speaker 1: a voipe account. In fact, you're supposed to UM, which
Speaker 1: would be you know, like the idea here is that
Speaker 1: you're telling the company this is where I usually I
Speaker 1: am usually at when I make my voice calls, like
Speaker 1: if I I'm usually at home when I do this
Speaker 1: VOPE system. So that way, if I were to ever
Speaker 1: call nine one one over the VOPE system, chances are
Speaker 1: this is the location that I'm calling from. UM. And
Speaker 1: then theoretically you should have an easy way to update
Speaker 1: that information so that if you were to travel, you
Speaker 1: could say I happen to be in Prague. Not of course,
Speaker 1: if you're in Prague, I don't know why you'd be
Speaker 1: dialing one, but the point being that you should be
Speaker 1: able to update your location so that UM, you're not
Speaker 1: sending the operators on a married chase or really it's
Speaker 1: just to let the phone company know which P s
Speaker 1: a P you're calling needs to be rounded to. Yeah,
Speaker 1: it's not gonna do much good if you call nine
Speaker 1: one one and the person answering the phone is eight
Speaker 1: counties away and uh, you know, it's just as all
Speaker 1: that's gonna do is waste valuable seconds. And of course
Speaker 1: we know like in an emergency, every second counts. Yeah,
Speaker 1: if you're if you're a v O I P telephone customer,
Speaker 1: for example, if you Advantage or many of the others.
Speaker 1: A lot of the regular I s P s and
Speaker 1: phone companies offer some kind of v O I P
Speaker 1: service Now UM. They'll tell you whether or not you
Speaker 1: can use UM, and they sort of have some of
Speaker 1: the details ironed out. However, if you were to be
Speaker 1: using some of the UM programs like Skype or Gizmo Project,
Speaker 1: I don't know that it would be as reliable as
Speaker 1: you know, something like Vantage, which is you know, set
Speaker 1: up to be. It's like, well, we know where he lives,
Speaker 1: he's calling from this address. It's fine. Now, the FCC
Speaker 1: says that any VOIPE provider has to provide support and
Speaker 1: it has to work. Uh. They don't go so far
Speaker 1: as to explain how that's supposed to happen, but they
Speaker 1: say this is how it has to be, so it's
Speaker 1: left up to the providers to find a way to
Speaker 1: make it work. Yeah, that's the thing. I mean, if
Speaker 1: you're if they know that you have a voice power
Speaker 1: line system at your house and you're calling from your house,
Speaker 1: well they know where that is. They can it works.
Speaker 1: It would work very similarly to a regular telephone call.
Speaker 1: I would assume in that UM they would say, well,
Speaker 1: h Chris is calling. We know Chris lives at this address,
Speaker 1: send him here and that would be it. But you know,
Speaker 1: it's not because of the voide. It's because they know
Speaker 1: they already know where you live, right And according to
Speaker 1: the f c C, interconnected voite providers must obtain affirmative
Speaker 1: acknowledgement from all existing customers that they are aware of
Speaker 1: and understand the limitations of their nine one one service,
Speaker 1: and they do send that information to you if you're
Speaker 1: a customer, because I am a v O I P customer,
Speaker 1: so you actually received that excellent, So good on them.
Speaker 1: They're following the law. UM. But yeah, it is important
Speaker 1: to remember that if you're a void customer that that
Speaker 1: could become uh an issue. However, we should also point
Speaker 1: out that, UM, you can also make nine one one
Speaker 1: calls from any cellular phone or really any landline. I
Speaker 1: think I think you can make an emergency call all
Speaker 1: no matter what, you don't even even if you don't
Speaker 1: have a plan anymore on a cell phone. If you
Speaker 1: pick up a cell phone in don nine one one,
Speaker 1: it has to work, right, that's true. I mean that's
Speaker 1: if you have an old cell phone. Um. I've actually
Speaker 1: heard this mention before by a consumer. Um consumer rights
Speaker 1: advocates said, if you have an old cell phone, you know,
Speaker 1: traded in for a new one, go ahead and keep
Speaker 1: it charged up, the old one and throw in your
Speaker 1: glove compartment, because what if you leave your cell phone
Speaker 1: at home, you get an accident, you still are supposed
Speaker 1: to be able to call nine one one, and they're
Speaker 1: still supposed to connect those emergency calls. So it's a
Speaker 1: good use for an old, beat up phone. Yeah. I know,
Speaker 1: there's some charity organizations that accept donations of old phones
Speaker 1: specifically to use them as emergency phones for underserf populations.
Speaker 1: So um, so yeah, that's that's a good thing to
Speaker 1: keep in mind is even if you do use voide,
Speaker 1: it may it may behoove you to keep a regular
Speaker 1: old phone plugged in or a a cell phone laying
Speaker 1: around so that you can rely on that in the
Speaker 1: case of an emergency, just in case the voide doesn't
Speaker 1: work exactly the way you would hope it would work,
Speaker 1: and in which case you would want to tell them
Speaker 1: where you are first. Yes, always remember that I'm done.
Speaker 1: I am too excellent, because you know what that means. Yeah,
Speaker 1: it's time for listener mail. Yay. I'm trying a new
Speaker 1: approach this time. Yea, yeah, excellent, all right. This listener
Speaker 1: mail comes from Andrew. Hi Andrew, He says hello, Hey, look,
Speaker 1: he said hi back. My name is Andrew from Illinois.
Speaker 1: So he's the Andrew from Illinois. Hi, Andrew and Illinois.
Speaker 1: He's in seventh grade and I'm subscribed to what is
Speaker 1: it now? Seven? Yeah? All seven How Stuff Works podcasts.
Speaker 1: You are awesome, Andrew. I just thought i'd dropped you
Speaker 1: a line. Aligned to you guys at tech stuff and
Speaker 1: say the specifics about the five major web browsers Internet Explorer,
Speaker 1: I have eight Mozilla, Firefox, Apple, Safari, Google, Chrome, and Opera.
Speaker 1: I have all five on my laptop, and although Internet
Speaker 1: Explorers the easiest to use, best for favorites and bookmarks
Speaker 1: and a few other things, there's in no way the best.
Speaker 1: Firefox is by far the best and safest of them all.
Speaker 1: Safari is the fastest, Chrome is stripped down, making it
Speaker 1: an easier interface to use, and Opera makes the best
Speaker 1: backup browser and is great on older computers. I know
Speaker 1: that you probably know all this already, but I just
Speaker 1: wanted to say what I believe about them. I never
Speaker 1: owned and hardly ever used a Mac before, by the way,
Speaker 1: I just wanted to say that I am slash was
Speaker 1: bared and it is PM by five pm and seventh grade.
Speaker 1: Yeah that's okay, Yeah, I'm I'd say bedtime at ten. Yeah,
Speaker 1: we'll ask my bedtime now too. Good Lord, well, Andrew,
Speaker 1: thank you very much for writing it. Um five browsers
Speaker 1: on one laptop. Oh, we'll see. That's that's because that's
Speaker 1: you see, he's not using a Mac. Because if he
Speaker 1: was using a Mac, you have those plus OmniWeb and
Speaker 1: Camino at least if not, Shira, I'm almost sad that
Speaker 1: I picked this mail to read. You know, you're right though,
Speaker 1: because each browser they're all they're all good. Uh, and
Speaker 1: it's it seems like from using all of them, there's
Speaker 1: always one thing about each one of them that goes. Man.
Speaker 1: I wish everybody else would do this, but they don't. Yeah. Yeah,
Speaker 1: I can think right off the help of my head.
Speaker 1: For instance, UM, i'd say the Internet Explorer probably has
Speaker 1: the most widespread support any website to work in Internet Explorer. Um,
Speaker 1: it's also out of the major ones, it's the slowest.
Speaker 1: Although Internet Explorer eight is faster than seven. I think,
Speaker 1: what was it, Safari was like thirty six times faster
Speaker 1: than Internet Explore seven. Yeah, it's only like eight times
Speaker 1: faster than Internet Explorer eight, so it's it's improved. But yeah, um,
Speaker 1: actually I think and and Andrew sent this for a
Speaker 1: while ago. I think I should point out that Google
Speaker 1: Chrome doesn't have a new beta out that's even faster
Speaker 1: and bite me, Safari. Disagree with you, Andrew. But they
Speaker 1: had a contest not too long ago which they let crackers,
Speaker 1: won't their white hat hackers take a shot at the
Speaker 1: different Uh stop laughing at me the joke alright, go
Speaker 1: ahead anyway, they let some some hackers take a shot
Speaker 1: at the security on the different browsers, and the one
Speaker 1: that withstood the attack the longest was not Firefox. It
Speaker 1: was Chrome. Yeah. Chrome, actually did did they ever break it?
Speaker 1: I didn't see a final I think they finally just
Speaker 1: gave up at the end of the first day. That
Speaker 1: was the only one that they hadn't actually managed to crack. Um, however,
Speaker 1: you don't have all the extensions and flexibility of fires true?
Speaker 1: Is that true? I I rely on Firefox primarily, and
Speaker 1: then I use Chrome is my backup browser, and then
Speaker 1: I use Internet Explorer for whenever I have to access anything.
Speaker 1: Uh internally, I still have a soft spot in my
Speaker 1: heart for opera, do you yeah? And Safari is pretty
Speaker 1: you know, there's some good things about all of them.
Speaker 1: I'm more of a musical fan than an opera fan,
Speaker 1: and I'm just gonna stop with that. Okay, So I
Speaker 1: guess that wratches things up. If you have any questions, comments,
Speaker 1: or suggestions, you can write us at tech stuff at
Speaker 1: how stuff works dot com. And remember we have blogs up.
Speaker 1: You can find those at how stuff works dot com,
Speaker 1: as well as articles about all the subjects we've been
Speaker 1: talking about so far. And we hope to taught you
Speaker 1: again really soon for more on this and thousands of
Speaker 1: other topics. Is it how stuff works dot Com brought
Speaker 1: to you by the reinvented two thousand twelve camera. It's ready,
Speaker 1: are you