1 00:00:10,447 --> 00:00:16,620 If I'm sitting next to a swimming pool and somebody dives in and she's not too pretty, 2 00:00:16,620 --> 00:00:22,632 so I can think of something else, I think of the waves and things that have formed in the water, 3 00:00:22,632 --> 00:00:29,235 and when there's lot's of people that have dived in the pool, there's a very great choppiness of all these waves all over the water, 4 00:00:29,235 --> 00:00:34,862 and to think that it's possible, maybe, that in those waves there a clue as to what's happening in the pool, 5 00:00:34,862 --> 00:00:38,066 that some sort of insect or something with sufficient cleverness, 6 00:00:38,066 --> 00:00:42,440 could sit in the corner of the pool and just be disturbed by the waves, 7 00:00:42,440 --> 00:00:47,083 and by the nature of the irregularities and bumping of the waves have figured out 8 00:00:47,083 --> 00:00:52,642 who jumped in, where and when and what's happening all over the pool. 9 00:00:52,642 --> 00:00:55,550 And that's what we're doing when we're looking at something: 10 00:00:55,550 --> 00:00:58,704 the light that comes out is waves 11 00:00:58,704 --> 00:01:04,523 just like in the swimming pool, except in 3 dimensions instead of the dimensions of the pool and it's going in all directions 12 00:01:04,523 --> 00:01:09,417 and we have a 8'th of an inch black whole into which these things go, 13 00:01:09,417 --> 00:01:14,974 which is particularly sensitive to parts of the wave that are coming in a particular direction 14 00:01:14,974 --> 00:01:17,605 and it's not particularly sensitive when they're coming in at the wrong angle, 15 00:01:17,605 --> 00:01:19,367 which we say is from the corner of our eye, 16 00:01:19,367 --> 00:01:26,129 and if we want to get more information from the corner of our eye, we swivel this ball about so that the hole moves from place to place. 17 00:01:26,129 --> 00:01:29,738 Then, ... 18 00:01:29,738 --> 00:01:34,937 it's quite wonderful that we figure out so easy; 19 00:01:34,937 --> 00:01:39,418 that's really because the light waves are easier than the waves in water are a little bit more complicated; 20 00:01:39,418 --> 00:01:42,772 it would have been harder for the bug than for us, but it's the same idea, 21 00:01:42,772 --> 00:01:47,323 to figure out what the thing is that we're looking at at a distance, 22 00:01:47,323 --> 00:01:55,995 and it's really kind-of incredible because when I'm looking at you, someone standing to my left can see somebody who's standing at my right; 23 00:01:55,995 --> 00:02:01,894 that is, the light could be going right across this way, the waves are going this way, the waves are going this way, the waves are going this way, 24 00:02:01,894 --> 00:02:04,401 it's just a complete network. 25 00:02:04,401 --> 00:02:08,956 Now, it's easy to just think of them as arrows passing each other, but that's not the way it is, 26 00:02:08,956 --> 00:02:11,877 because all of this is something shaking -it's called the electric field, 27 00:02:11,877 --> 00:02:15,894 but we don't have to bother with what it is- it's just like the water height is going up and down. 28 00:02:15,894 --> 00:02:18,628 So there's some quantity shaking about here 29 00:02:18,628 --> 00:02:25,092 and the combination of motions that's so elaborate and complicated that the result is to produce an influence which makes me see you. 30 00:02:25,092 --> 00:02:32,763 At the same time, completely undisturbed by the fact that there are influences that represent the other guy seeing him on this side. 31 00:02:32,763 --> 00:02:36,708 So that there's this TREMENDOUS mess 32 00:02:36,708 --> 00:02:44,215 of waves all over in space which we call... which is the light bouncing around the room and going from one thing to the other, 33 00:02:44,215 --> 00:02:50,923 because of course most of the room doesn't have 8'th inch black holes. It's not interested in that light, 34 00:02:50,923 --> 00:02:54,452 but the light is there anyway, and it bounces off this, and it bounces off that, 35 00:02:54,452 --> 00:02:59,210 and all this is going on, and yet we can sort it out with this instrument. 36 00:03:01,423 --> 00:03:05,661 But beside all that, you see, those waves that I was talking about in the water, 37 00:03:05,661 --> 00:03:10,412 maybe they're so big - some of them - and then there's slower swashes which are longer, and shorter. 38 00:03:10,412 --> 00:03:16,063 Perhaps that animal is making it's study only using waves between this length and that length, 39 00:03:16,063 --> 00:03:21,835 so it turns out that the eye is only using waves between this length and that length, 40 00:03:21,835 --> 00:03:29,741 except those two lengths are 100,000'th of an inch - 100,000'th of an inch big, 41 00:03:29,741 --> 00:03:31,788 and what about the slower swashes? 42 00:03:31,788 --> 00:03:36,893 The waves that go more slowly, that have a longer distance from crest to trough. 43 00:03:36,893 --> 00:03:44,226 Those represent heat. We feel those, but our eye doesn't see them focused very well, we don't in fact at all. 44 00:03:44,226 --> 00:03:51,557 The shorter waves are blue, [...] the longer waves are red. But when it gets longer than that then we call them infrared. 45 00:03:51,557 --> 00:03:53,982 And all this is in there at the same time. That's the heat. 46 00:03:56,061 --> 00:04:02,201 And then these waves get longer and longer, and all through the same space, all these things are going on at the same time, 47 00:04:02,201 --> 00:04:06,939 so that in this space, there's not only my vision of you, 48 00:04:06,939 --> 00:04:13,913 but information from Moscow Radio that's being broadcasted at present moment, and the seeing of somebody from Peru. 49 00:04:15,202 --> 00:04:26,019 So this big field, this - this area of irregular motions of this electric field, this vibration, contains this tremendous information, 50 00:04:26,019 --> 00:04:30,613 and it's ALL REALLY there, that's what gets you. 51 00:04:30,613 --> 00:04:36,837 If you don't believe it, then you pick a piece of wire and connect it to a box 52 00:04:36,837 --> 00:04:43,966 and in the wire the electrons would be pushed back and forth by this electric field, swashing just at the right speed for the certain kind of long waves, 53 00:04:43,966 --> 00:04:49,021 and you turn some knobs on the box to get the swashing just right, and you hear Radio Moscow! 54 00:04:49,021 --> 00:04:51,441 Then you know that it was there. How else did it get there? 55 00:04:51,441 --> 00:04:56,813 It was there all the time. It is only when you turn on the radio that you notice it. 56 00:04:56,813 --> 00:05:01,834 But that all these things are going through the room at the same time which everybody knows, 57 00:05:01,834 --> 00:05:07,117 but you gotta stop and think about it to really get the pleasure about the complexity 58 00:05:07,117 --> 00:05:11,598 - the INCONCEIVABLE nature of nature.