1
00:00:00,000 --> 00:00:08,040
hey how do microwave ovens work and more importantly how do the microwaves stay

2
00:00:05,819 --> 00:00:12,599
in the microwave the simple explanation is that microwaves are actually too big

3
00:00:10,500 --> 00:00:17,760
to get out of the oven but we can do better than that so let's dig a little

4
00:00:14,280 --> 00:00:20,220
deeper into this hot pocket of science

5
00:00:17,760 --> 00:00:24,240
microwave radiation has several Key properties that make it useful for

6
00:00:21,840 --> 00:00:27,320
cooking first it's not too risky to use at home because it's a form of low

7
00:00:26,340 --> 00:00:32,520
frequency non-ionizing radiation like radio waves

8
00:00:30,180 --> 00:00:36,719
infrared and visible light this is opposed to dangerous high energy

9
00:00:34,079 --> 00:00:41,820
ionizing radiation like X-rays and gamma rays that have a relatively High chance

10
00:00:38,940 --> 00:00:45,780
of damaging DNA and causing cancer and a small chance of transforming you into a

11
00:00:43,800 --> 00:00:50,520
giant green rage monster that's not to say that microwaves can't hurt you after

12
00:00:47,700 --> 00:00:54,660
all humans are much like hamburgers in the sense that we are both made of Flesh

13
00:00:52,500 --> 00:00:58,739
at high enough levels microwaves can cause Burns and other physical damage

14
00:00:56,699 --> 00:01:03,300
which is why it's important to keep them contained second microwaves interact

15
00:01:01,079 --> 00:01:08,280
with polar molecules which are made of both positively and negatively charged

16
00:01:05,519 --> 00:01:12,420
atoms causing them to spin the extra energy from the spinning then radiates

17
00:01:10,140 --> 00:01:16,320
from the molecules as heat in the case of food these are typically water

18
00:01:14,100 --> 00:01:19,740
molecules where the oxygen atom has a positive charge while the two High

19
00:01:17,700 --> 00:01:24,180
hydrogen atoms have a negative charge but microwaves don't interact much with

20
00:01:22,560 --> 00:01:28,500
other kinds of molecules they really just bounce off them meaning that

21
00:01:26,340 --> 00:01:34,020
microwaves can be easily contained by say a small closed metal box that's how

22
00:01:31,560 --> 00:01:38,520
microwaves heat just the food and not the surrounding air or the sides of the

23
00:01:36,659 --> 00:01:43,259
oven this is also why it's not a good idea to run a microwave oven while it's

24
00:01:41,280 --> 00:01:47,280
empty without the water molecules and food to absorb the microwaves they can

25
00:01:45,420 --> 00:01:51,960
end up damaging the device's electronics over time as for putting metal in the

26
00:01:49,740 --> 00:01:57,240
microwave well it won't make the device explode but pointed metal objects might

27
00:01:54,780 --> 00:02:01,619
spark due to electric charge building up at the tips which incidentally is also

28
00:02:00,000 --> 00:02:05,399
why Guy Fieri's hair always looked like that but hey what about that window

29
00:02:03,500 --> 00:02:09,179
electromagnetic radiation like radio waves and microwaves can pass through

30
00:02:07,079 --> 00:02:12,660
glass right well we'll explain how that works right after we think Tailwind for

31
00:02:11,220 --> 00:02:16,860
sponsoring this video If you're trying to improve your social media engagement

32
00:02:14,280 --> 00:02:21,480
it helps to have a plan Tailwind is an app that simulates a marketing team all

33
00:02:19,260 --> 00:02:25,860
in the palm of your hands generate a social media marketing plan personalized

34
00:02:23,340 --> 00:02:29,459
to your needs leverage AI tools and design templates to create beautiful

35
00:02:27,300 --> 00:02:33,060
posts and schedule your content releases so they come out when your audience is

36
00:02:31,080 --> 00:02:36,720
most responsive use their Advanced analytic tools to see how your campaign

37
00:02:34,800 --> 00:02:40,440
did and make any necessary tweaks to improve and optimize check out Tailwind

38
00:02:38,700 --> 00:02:45,420
at the link below and leave your social media struggles in the dust the reason

39
00:02:43,140 --> 00:02:48,420
why microwave ovens don't melt your face off when you look in the window is

40
00:02:46,800 --> 00:02:52,920
because they're essentially a kind of Faraday cage that blocks electromagnetic

41
00:02:50,819 --> 00:02:56,940
waves above a certain size from getting in or out you've probably noticed that

42
00:02:55,019 --> 00:03:00,959
the window of a microwave door has a fine mesh embedded in it those holes are

43
00:02:59,400 --> 00:03:05,340
more than big enough for visible light to escape like a mouse darting out of an

44
00:03:03,540 --> 00:03:09,239
elephant pen but they're way too small for the microwaves to get through

45
00:03:06,840 --> 00:03:13,200
microwaves are quite a bit bigger than waves in the visible light spectrum

46
00:03:11,099 --> 00:03:17,819
which are only around 400 to 700 nanometers long the microwave spectrum

47
00:03:15,420 --> 00:03:23,159
is from a millimeter to 30 centimeters or about 12 inches microwave ovens use a

48
00:03:20,400 --> 00:03:27,840
frequency around 2.45 gigahertz which results in waves around 4.8 inches in

49
00:03:25,980 --> 00:03:31,260
size which is way bigger than these holes these are simply not

50
00:03:29,099 --> 00:03:36,300
microwave-shaped holes a microwave oven is typically only unsafe if the door no

51
00:03:34,019 --> 00:03:40,620
longer seals the device has a hole in it or it has been modified to run with the

52
00:03:38,280 --> 00:03:44,400
door open as an ammo saving way to defend your compound in a zombie

53
00:03:42,000 --> 00:03:49,200
apocalypse it's also an unsafe place to store elements like radium that emit

54
00:03:46,319 --> 00:03:53,280
gamma radiation because gamma waves are small enough to get through the holes in

55
00:03:50,700 --> 00:03:56,879
the door's mesh I'm hoping that none of you are currently storing radium in the

56
00:03:55,019 --> 00:03:59,879
microwave but if you are please stop and don't worry about opening the door

57
00:03:58,019 --> 00:04:03,840
immediately after cooking microwaves travel extremely quickly so they'll be

58
00:04:01,799 --> 00:04:07,440
absorbed into the food long before the door opens although waiting for a little

59
00:04:05,640 --> 00:04:11,879
bit does have the advantage of allowing any hot spots to dissipate more evenly

60
00:04:09,900 --> 00:04:15,180
throughout the food but that's up to you and how much of an appetite you still

61
00:04:13,439 --> 00:04:19,440
have after I made you think about cooked zombies just now

62
00:04:17,280 --> 00:04:22,500
that was a tech Wiki and it's over now thanks for watching like the video if

63
00:04:20,940 --> 00:04:25,919
you liked it dislike it if you disliked it check out our other videos comment

64
00:04:24,060 --> 00:04:31,580
below with video suggestions and don't forget to subscribe and follow it'll

65
00:04:27,780 --> 00:04:31,580
make me happy maybe you too