[Script Info] Title: [Events] Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text Dialogue: 0,0:00:10.45,0:00:16.62,Default,,0000,0000,0000,,If I'm sitting next to a swimming pool and somebody dives in and she's not too pretty, Dialogue: 0,0:00:16.62,0:00:22.63,Default,,0000,0000,0000,,so I can think of something else, I think of the waves and things that have formed in the water, Dialogue: 0,0:00:22.63,0:00:29.24,Default,,0000,0000,0000,,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, Dialogue: 0,0:00:29.24,0:00:34.86,Default,,0000,0000,0000,,and to think that it's possible, maybe, that in those waves there a clue as to what's happening in the pool, Dialogue: 0,0:00:34.86,0:00:38.07,Default,,0000,0000,0000,,that some sort of insect or something with sufficient cleverness, Dialogue: 0,0:00:38.07,0:00:42.44,Default,,0000,0000,0000,,could sit in the corner of the pool and just be disturbed by the waves, Dialogue: 0,0:00:42.44,0:00:47.08,Default,,0000,0000,0000,,and by the nature of the irregularities and bumping\Nof the waves have figured out \N Dialogue: 0,0:00:47.08,0:00:52.64,Default,,0000,0000,0000,,who jumped in, where and when and what's happening all over the pool. Dialogue: 0,0:00:52.64,0:00:55.55,Default,,0000,0000,0000,,And that's what we're doing when we're looking at something: Dialogue: 0,0:00:55.55,0:00:58.70,Default,,0000,0000,0000,,the light that comes out is waves Dialogue: 0,0:00:58.70,0:01:04.52,Default,,0000,0000,0000,,just like in the swimming pool, except in 3 dimensions instead of the dimensions of the pool and it's going in all directions Dialogue: 0,0:01:04.52,0:01:09.42,Default,,0000,0000,0000,,and we have a 8'th of an inch black whole into which these things go, Dialogue: 0,0:01:09.42,0:01:14.97,Default,,0000,0000,0000,,which is particularly sensitive to parts of the wave that are coming in a particular direction Dialogue: 0,0:01:14.97,0:01:17.60,Default,,0000,0000,0000,,and it's not particularly sensitive when they're coming in at the wrong angle, Dialogue: 0,0:01:17.60,0:01:19.37,Default,,0000,0000,0000,,which we say is from the corner of our eye, Dialogue: 0,0:01:19.37,0:01:26.13,Default,,0000,0000,0000,,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. Dialogue: 0,0:01:26.13,0:01:29.74,Default,,0000,0000,0000,,Then, ... Dialogue: 0,0:01:29.74,0:01:34.94,Default,,0000,0000,0000,,it's quite wonderful that we figure out so easy; Dialogue: 0,0:01:34.94,0:01:39.42,Default,,0000,0000,0000,,that's really because the light waves are easier than the waves in water are a little bit more complicated; Dialogue: 0,0:01:39.42,0:01:42.77,Default,,0000,0000,0000,,it would have been harder for the bug than for us, but it's the same idea, Dialogue: 0,0:01:42.77,0:01:47.32,Default,,0000,0000,0000,,to figure out what the thing is that we're looking at at a distance,\N Dialogue: 0,0:01:47.32,0:01:55.100,Default,,0000,0000,0000,,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; Dialogue: 0,0:01:55.100,0:02:01.89,Default,,0000,0000,0000,,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, Dialogue: 0,0:02:01.89,0:02:04.40,Default,,0000,0000,0000,,it's just a complete network. Dialogue: 0,0:02:04.40,0:02:08.96,Default,,0000,0000,0000,,Now, it's easy to just think of them as arrows passing each other, but that's not the way it is, Dialogue: 0,0:02:08.96,0:02:11.88,Default,,0000,0000,0000,,because all of this is something shaking -it's called the electric field, Dialogue: 0,0:02:11.88,0:02:15.89,Default,,0000,0000,0000,,but we don't have to bother with what it is- it's just like the water height is going up and down. Dialogue: 0,0:02:15.89,0:02:18.63,Default,,0000,0000,0000,,So there's some quantity shaking about here Dialogue: 0,0:02:18.63,0:02:25.09,Default,,0000,0000,0000,,and the combination of motions that's so elaborate and complicated that the result is to produce an influence which makes me see you. Dialogue: 0,0:02:25.09,0:02:32.76,Default,,0000,0000,0000,,At the same time, completely undisturbed by the fact that there are influences that represent the other guy seeing him on this side. Dialogue: 0,0:02:32.76,0:02:36.71,Default,,0000,0000,0000,,So that there's this TREMENDOUS mess Dialogue: 0,0:02:36.71,0:02:44.22,Default,,0000,0000,0000,,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, Dialogue: 0,0:02:44.22,0:02:50.92,Default,,0000,0000,0000,,because of course most of the room doesn't have 8'th inch black holes. It's not interested in that light, Dialogue: 0,0:02:50.92,0:02:54.45,Default,,0000,0000,0000,,but the light is there anyway, and it bounces off this, and it bounces off that,\N Dialogue: 0,0:02:54.45,0:02:59.21,Default,,0000,0000,0000,,and all this is going on, and yet we can sort it out with this instrument. Dialogue: 0,0:03:01.42,0:03:05.66,Default,,0000,0000,0000,,But beside all that, you see, those waves that I was talking about in the water, Dialogue: 0,0:03:05.66,0:03:10.41,Default,,0000,0000,0000,,maybe they're so big - some of them - and then there's slower swashes which are longer, and shorter. Dialogue: 0,0:03:10.41,0:03:16.06,Default,,0000,0000,0000,,Perhaps that animal is making it's study only using waves between this length and that length, Dialogue: 0,0:03:16.06,0:03:21.84,Default,,0000,0000,0000,,so it turns out that the eye is only using waves between this length and that length, Dialogue: 0,0:03:21.84,0:03:29.74,Default,,0000,0000,0000,,except those two lengths are 100,000'th of an inch - 100,000'th of an inch big, Dialogue: 0,0:03:29.74,0:03:31.79,Default,,0000,0000,0000,,and what about the slower swashes? Dialogue: 0,0:03:31.79,0:03:36.89,Default,,0000,0000,0000,,The waves that go more slowly, that have a longer distance from crest to trough. Dialogue: 0,0:03:36.89,0:03:44.23,Default,,0000,0000,0000,,Those represent heat. We feel those, but our eye doesn't see them focused very well, we don't in fact at all.\N Dialogue: 0,0:03:44.23,0:03:51.56,Default,,0000,0000,0000,,The shorter waves are blue, [...] the longer waves are red. But when it gets longer than that then we call them infrared. Dialogue: 0,0:03:51.56,0:03:53.98,Default,,0000,0000,0000,,And all this is in there at the same time. That's the heat. Dialogue: 0,0:03:56.06,0:04:02.20,Default,,0000,0000,0000,,And then these waves get longer and longer, and all through the same space, all these things are going on at the same time, Dialogue: 0,0:04:02.20,0:04:06.94,Default,,0000,0000,0000,,so that in this space, there's not only my vision of you, Dialogue: 0,0:04:06.94,0:04:13.91,Default,,0000,0000,0000,,but information from Moscow Radio that's being broadcasted at present moment, and the seeing of somebody from Peru. Dialogue: 0,0:04:15.20,0:04:26.02,Default,,0000,0000,0000,,So this big field, this - this area of irregular motions of this electric field, this vibration, contains this tremendous information, Dialogue: 0,0:04:26.02,0:04:30.61,Default,,0000,0000,0000,,and it's ALL REALLY there, that's what gets you. Dialogue: 0,0:04:30.61,0:04:36.84,Default,,0000,0000,0000,,If you don't believe it, then you pick a piece of wire and connect it to a box Dialogue: 0,0:04:36.84,0:04:43.97,Default,,0000,0000,0000,,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,\N Dialogue: 0,0:04:43.97,0:04:49.02,Default,,0000,0000,0000,,and you turn some knobs on the box to get the swashing just right, and you hear Radio Moscow! Dialogue: 0,0:04:49.02,0:04:51.44,Default,,0000,0000,0000,,Then you know that it was there. How else did it get there? Dialogue: 0,0:04:51.44,0:04:56.81,Default,,0000,0000,0000,,It was there all the time. It is only when you turn on the radio that you notice it. Dialogue: 0,0:04:56.81,0:05:01.83,Default,,0000,0000,0000,,But that all these things are going through the room at the same time which everybody knows, Dialogue: 0,0:05:01.83,0:05:07.12,Default,,0000,0000,0000,,but you gotta stop and think about it to really get the pleasure about the complexity \N Dialogue: 0,0:05:07.12,0:05:11.60,Default,,0000,0000,0000,,- the INCONCEIVABLE nature of nature.\N