1
00:00:00,040 --> 00:00:06,359
there aren't actually too many more things more difficult than trying to see

2
00:00:03,719 --> 00:00:10,519
your surroundings in a pitch black room and while you can always feel your way

3
00:00:08,280 --> 00:00:15,320
around and hope that you don't trip head first into the toilet there are times

4
00:00:13,280 --> 00:00:20,039
that actually being able to see in the dark is a must fortunately night vision

5
00:00:18,480 --> 00:00:24,439
isn't just a thing in your favorite first-person shooter it's present in

6
00:00:22,199 --> 00:00:29,320
everything from surveillance cameras to military periscopes to ordinary

7
00:00:27,080 --> 00:00:35,320
smartphones in fact part of the reason night vision has so many applications is

8
00:00:32,759 --> 00:00:40,399
because it's not just one specific piece of technology rather it comes in several

9
00:00:38,200 --> 00:00:44,640
different forms that can be deployed depending on use case but what many

10
00:00:42,840 --> 00:00:50,559
people think of when they hear the words night vision is something called image

11
00:00:47,480 --> 00:00:54,000
intensification or image enhancement

12
00:00:50,559 --> 00:00:56,359
this is that stereotypical green form of

13
00:00:54,000 --> 00:01:01,359
night vision that you might associate with the military or what you see in

14
00:00:59,199 --> 00:01:06,760
action movies speaking of which that green color is used on purpose because

15
00:01:04,280 --> 00:01:11,360
your eyes are more sensitive to Green than other colors image enhancement

16
00:01:08,920 --> 00:01:16,240
works by being able to detect low levels of light and then amplify it when

17
00:01:14,119 --> 00:01:21,360
photons the tiny particles that make up light enter an image enhancer they first

18
00:01:19,119 --> 00:01:27,200
hit a special layer called a photocathode which releases electrons

19
00:01:24,600 --> 00:01:31,680
these electrons then hit a second layer called a microchannel plate which mult

20
00:01:29,880 --> 00:01:36,240
mullies the electrons before they hit the phosphor screen why are these things

21
00:01:33,520 --> 00:01:41,079
all so epic that then converts them back into light because there are now so many

22
00:01:38,600 --> 00:01:45,040
more electrons you get a Brighter Image so you'll have an easier time getting

23
00:01:43,320 --> 00:01:49,520
into someone's base and killing all their dudes but hold on a second what if

24
00:01:47,719 --> 00:01:55,439
there isn't enough light for thermal enhancers to see at all this is where

25
00:01:52,880 --> 00:02:00,320
thermal imaging comes in instead of detecting light thermal cameras detect

26
00:01:57,880 --> 00:02:05,039
heat coming off of different objects since they can see infrared light you

27
00:02:02,600 --> 00:02:10,280
see heat causes things to emit photons in the infrared or IR spectrum and

28
00:02:07,600 --> 00:02:14,920
although humans can't see infrared light these special cameras take advantage of

29
00:02:12,160 --> 00:02:19,200
it in a number of different ways IR cameras produce images called

30
00:02:16,440 --> 00:02:22,959
thermograms which sometimes look rainbow colored where the different colors

31
00:02:20,840 --> 00:02:28,519
represent different temperatures thermograms are useful for everything

32
00:02:25,599 --> 00:02:33,080
seemingly from medicine to construction but they're very specific specifically

33
00:02:30,440 --> 00:02:37,280
handy for night vision since it's really easy to pick out different objects such

34
00:02:35,000 --> 00:02:41,280
as people or animals due to their different colors standing out on the

35
00:02:39,000 --> 00:02:45,840
screen thermal cameras often can't achieve the same level of detail as

36
00:02:43,599 --> 00:02:49,640
their image enhancing counterparts but they have a big advantage of being able

37
00:02:47,599 --> 00:02:54,800
to pick out things that might be hard to see with a normal image enhancer for

38
00:02:52,599 --> 00:02:59,360
example a firefighter trying to locate people that need to be rescued in a

39
00:02:57,040 --> 00:03:04,720
burning building a hunter picking out prey deep in the woods hiding behind

40
00:03:01,800 --> 00:03:09,400
foliage or cops trying to locate that hiding fugitive and speaking of thermal

41
00:03:07,360 --> 00:03:14,280
imaging some cameras can even create their own infrared light in a process

42
00:03:11,760 --> 00:03:18,959
called active illumination where they actually light up their surroundings

43
00:03:16,599 --> 00:03:23,599
with ir radiation because this additional infrared energy reflects off

44
00:03:21,280 --> 00:03:28,879
of whatever the camera is pointed at this strategy can result in much higher

45
00:03:26,440 --> 00:03:33,439
resolution images great for things like surveillance camera where you really

46
00:03:31,120 --> 00:03:39,280
want to get a positive ID on that per that tried to steal your slushy

47
00:03:35,840 --> 00:03:41,120
machine what a downer audible.com is the

48
00:03:39,280 --> 00:03:46,799
leading provider of audiobooks with more than 180,000 downloadable titles across all

49
00:03:45,000 --> 00:03:51,959
types of literature including fiction non-fiction and periodicals audiobooks

50
00:03:49,519 --> 00:03:57,720
are great to listen to when you're doing whatever programming playing games going

51
00:03:54,760 --> 00:04:00,760
to school working out doesn't matter basically anywhere you have your

52
00:03:58,720 --> 00:04:05,560
smartphone for our audience members audible is offering a free 30-day trial

53
00:04:02,840 --> 00:04:10,840
just go to audible.com techquickie and browse the over as I've already said 18

54
00:04:07,879 --> 00:04:15,400
180,000 audio programs there might be some audio book about stealing a

55
00:04:13,280 --> 00:04:20,400
portable slushie machine but I've been listening to Game of Thrones it's

56
00:04:17,519 --> 00:04:23,199
absolutely fantastic no spoilers the current movies are or the current show

57
00:04:22,000 --> 00:04:30,120
is kind of running right now so there's a lot of spoilers online too so just a heads up to avoid those but yeah if

58
00:04:27,280 --> 00:04:35,639
you're like old enough I I i' listen to I'd listen to Game of Thrones Audi book

59
00:04:32,560 --> 00:04:37,919
speaking of things I'd do like the video

60
00:04:35,639 --> 00:04:44,000
or you know dislike the video if you want to like be the other side in a Game

61
00:04:40,680 --> 00:04:45,600
of Thrones War you know uh that analogy

62
00:04:44,000 --> 00:04:50,639
sucked going to roll with it don't forget to go to Channel Super Fun they're pretty cool don't forget to

63
00:04:48,639 --> 00:04:55,759
leave a suggestion down below if you're like wow you should probably have better

64
00:04:53,720 --> 00:04:59,240
analogies and Segways that would also be fine or you could be like here's an idea

65
00:04:57,759 --> 00:05:07,600
for another video that would be even more fine and yeah if you want to see

66
00:05:01,880 --> 00:05:07,600
more just come back that's cool