1
00:00:00,200 --> 00:00:03,640
Speaker 1: Jack Threads is the online shopping destination for dudes. Everything

2
00:00:03,640 --> 00:00:06,000
Speaker 1: on the side is up to eight off. All styles

3
00:00:06,000 --> 00:00:09,120
Speaker 1: are curated, so buyer's remorse just doesn't happen. What's more

4
00:00:09,200 --> 00:00:11,000
Speaker 1: is if you were brain stuff, you can skip the

5
00:00:11,039 --> 00:00:13,880
Speaker 1: membership wait list and get instant access at jack threads

6
00:00:13,920 --> 00:00:17,760
Speaker 1: dot com, slash Stuff Welcome to Brainstuff front house, stuff

7
00:00:17,760 --> 00:00:28,520
Speaker 1: works dot com Where smart Happens. Hi, I'm Marshall Brain

8
00:00:28,600 --> 00:00:32,199
Speaker 1: with today's question. How does an indo glow watch work.

9
00:00:32,840 --> 00:00:38,040
Speaker 1: The basic technology behind the indo glow watch is called electroluminescence.

10
00:00:38,400 --> 00:00:43,720
Speaker 1: Electroluminescence is the conversion of electricity directly into light. This

11
00:00:43,840 --> 00:00:48,080
Speaker 1: is not how an incandescent ball works. In an incandescent ball,

12
00:00:48,200 --> 00:00:53,360
Speaker 1: the electricity produces heat and the heat produces light. Electroluminescence

13
00:00:53,520 --> 00:00:57,000
Speaker 1: is much more efficient because it converts the electricity directly

14
00:00:57,080 --> 00:01:00,880
Speaker 1: to light. The most common example of electro luminescence that

15
00:01:01,000 --> 00:01:03,960
Speaker 1: we see on a regular basis is a neon sign.

16
00:01:04,680 --> 00:01:08,959
Speaker 1: In a neon sign, high voltage energizes the electrons and

17
00:01:08,959 --> 00:01:13,559
Speaker 1: the neon atoms and they emit photons. In an indiglow watch,

18
00:01:13,800 --> 00:01:18,559
Speaker 1: a very thin panel uses high voltage to energize phosphor

19
00:01:18,560 --> 00:01:23,160
Speaker 1: atoms that produced the light. The panel itself is incredibly simple,

20
00:01:23,600 --> 00:01:26,280
Speaker 1: as described in the time x patent. You take a

21
00:01:26,440 --> 00:01:30,240
Speaker 1: thin glass or plastic layer, you coat it with a

22
00:01:30,240 --> 00:01:34,160
Speaker 1: clear conductor. You coat that conductor with a very thin

23
00:01:34,280 --> 00:01:37,800
Speaker 1: layer of phosphor. You coat the phosphor with a thin

24
00:01:38,000 --> 00:01:42,200
Speaker 1: plastic and then you add another electrode. Essentially, what you

25
00:01:42,319 --> 00:01:47,319
Speaker 1: have is two conductors or a capacitor with phosphor in between.

26
00:01:47,920 --> 00:01:50,840
Speaker 1: When you apply one D two hundred volts a C

27
00:01:51,080 --> 00:01:55,760
Speaker 1: to the conductors, the phosphor energizes and it begins emitting photons.

28
00:01:56,080 --> 00:01:58,800
Speaker 1: Creating that high voltage can be a problem in a

29
00:01:58,840 --> 00:02:01,880
Speaker 1: wrist watch. The watch only has this little one point

30
00:02:01,960 --> 00:02:05,640
Speaker 1: five volt battery inside it. To produce the one two

31
00:02:05,720 --> 00:02:10,960
Speaker 1: hundred volts, a one to one hundred transformer is used

32
00:02:11,320 --> 00:02:14,440
Speaker 1: by charging the primary coil of the transformer with a

33
00:02:14,560 --> 00:02:18,799
Speaker 1: transistor that's switching on and off very rapidly. The secondary

34
00:02:18,840 --> 00:02:21,960
Speaker 1: coil rises to a hundred fifty volts or so. You

35
00:02:22,080 --> 00:02:25,480
Speaker 1: apply that to the panel and the panel starts to glow.

36
00:02:26,960 --> 00:02:29,360
Speaker 1: For more on this and thousands of other topics. Because

37
00:02:29,400 --> 00:02:35,640
Speaker 1: it how staff works, dot com Jack threads is the

38
00:02:35,760 --> 00:02:38,799
Speaker 1: online shopping destination for dudes. Everything on the side is

39
00:02:38,880 --> 00:02:42,080
Speaker 1: up to off, all styles are curated, so buyer's remorse

40
00:02:42,160 --> 00:02:44,919
Speaker 1: just doesn't happen. What's more is if you were brain Stuff,

41
00:02:44,919 --> 00:02:47,280
Speaker 1: you can skip the membership wait list and get instant

42
00:02:47,320 --> 00:02:49,720
Speaker 1: access at jack threads dot com slash stuff