1 00:00:01,240 --> 00:00:04,800 Speaker 1: Hi, everybody. Not a double rainbow coming your way, just 2 00:00:04,840 --> 00:00:08,680 Speaker 1: a single rainbow. In this Selects episode from February three, 3 00:00:09,280 --> 00:00:14,480 Speaker 1: two thy fifteen, the Year of Our Lord. This one 4 00:00:14,520 --> 00:00:20,400 Speaker 1: is Rainbow's colon Delighting Humanity since Forever. If I'm not mistaken, 5 00:00:20,440 --> 00:00:22,960 Speaker 1: that was a Josh Clark title, and I love it. 6 00:00:23,560 --> 00:00:27,160 Speaker 1: Good job, my friend. Check it out. We explain all 7 00:00:27,160 --> 00:00:30,600 Speaker 1: about how rainbows work, and now you can know too. Enjoy. 8 00:00:34,640 --> 00:00:42,440 Speaker 1: Welcome to stuff you should know, a production of iHeartRadio. 9 00:00:44,120 --> 00:00:46,640 Speaker 2: Hey, and welcome to the podcast. I'm Josh Clark with 10 00:00:46,760 --> 00:00:50,400 Speaker 2: Charles W. Chuck Bryant and Jerry Rowland. Have we ever 11 00:00:50,400 --> 00:00:53,720 Speaker 2: said Jerry's last night don't mix? So? Well? We have. 12 00:00:53,840 --> 00:00:56,640 Speaker 1: Now it's out there. It's on the internet. Even someone 13 00:00:56,800 --> 00:01:00,240 Speaker 1: really updated our Wikipedia page. If you look lately, it's 14 00:01:00,360 --> 00:01:05,840 Speaker 1: robust that even says they're producer Jerry Jerome Rowland. How 15 00:01:05,880 --> 00:01:07,520 Speaker 1: do they know that? I guess I've said it on 16 00:01:07,560 --> 00:01:08,560 Speaker 1: the podcast before. 17 00:01:08,640 --> 00:01:12,720 Speaker 2: I am sure that you have. So how are you doing? 18 00:01:13,160 --> 00:01:17,199 Speaker 1: I'm great man, Rainbow's As the author points out, they've 19 00:01:17,200 --> 00:01:19,280 Speaker 1: inspired countless fairy tale songs and legends. 20 00:01:19,280 --> 00:01:23,440 Speaker 2: Man, I love rainbows. I think rainbows are just fantastic 21 00:01:23,440 --> 00:01:26,720 Speaker 2: They're probably the greatest graphic design of all time. I 22 00:01:26,800 --> 00:01:27,959 Speaker 2: just think rainbows are great. 23 00:01:28,319 --> 00:01:30,319 Speaker 1: Well, it is funny to when you read the different 24 00:01:30,440 --> 00:01:33,240 Speaker 1: articles how people it's kind of corny when they talk 25 00:01:33,280 --> 00:01:37,480 Speaker 1: about how they delight in astound. But darn it, when 26 00:01:37,520 --> 00:01:40,360 Speaker 1: you see a rainbow, even as a jaded, cynical adult, 27 00:01:42,840 --> 00:01:44,399 Speaker 1: there's no way you can't look and just go. 28 00:01:44,600 --> 00:01:45,959 Speaker 2: Oh, that's pretty neat. 29 00:01:46,280 --> 00:01:48,520 Speaker 1: Yeah, at the very least, you'll go, oh, a rainbow. 30 00:01:48,600 --> 00:01:51,240 Speaker 2: If somebody says, hey, there's a rainbow over there, you're 31 00:01:51,360 --> 00:01:52,240 Speaker 2: going to look up. 32 00:01:52,560 --> 00:01:53,040 Speaker 1: I don't care. 33 00:01:53,720 --> 00:01:56,440 Speaker 2: And if you doubt, if you doubt a rainbow's ability 34 00:01:56,480 --> 00:01:58,280 Speaker 2: to astound adults, all you have to do is look 35 00:01:58,360 --> 00:02:02,800 Speaker 2: up Yosembity Bears Double Rainbow video, which I watched today. 36 00:02:03,440 --> 00:02:05,520 Speaker 2: It's pretty pretty great stuff. 37 00:02:05,720 --> 00:02:08,960 Speaker 1: All Bear Vesquez. Yeah, yeah, that guy's what. 38 00:02:08,880 --> 00:02:09,560 Speaker 2: Does it mean? 39 00:02:11,320 --> 00:02:14,840 Speaker 1: I know what it means. You're on peyote. You know. 40 00:02:14,960 --> 00:02:17,600 Speaker 1: Next time someone does see a rainbow and say that, 41 00:02:17,680 --> 00:02:21,280 Speaker 1: I'm gonna test everything and just say so, and I'm 42 00:02:21,360 --> 00:02:23,720 Speaker 1: gonna luck, all right, see if they just think I'm 43 00:02:23,720 --> 00:02:24,760 Speaker 1: dead inside. 44 00:02:24,520 --> 00:02:27,160 Speaker 2: Let's see what happens, all right. I'm curious to see 45 00:02:27,160 --> 00:02:32,000 Speaker 2: whether you can not look, of course, I look so 46 00:02:32,160 --> 00:02:34,480 Speaker 2: chuck that we're not the first to be delighted and 47 00:02:34,560 --> 00:02:38,960 Speaker 2: amused by rainbows. It goes back several years, decades at least, 48 00:02:39,280 --> 00:02:41,400 Speaker 2: they've been around forever. There There is a lot of 49 00:02:41,440 --> 00:02:44,800 Speaker 2: mythology surrounding them, because you know, they're unusual. They don't 50 00:02:44,800 --> 00:02:48,280 Speaker 2: happen every day, and well, I guess they depends on 51 00:02:48,320 --> 00:02:52,880 Speaker 2: where you live, but it's not necessarily a normal occurrence. 52 00:02:53,440 --> 00:02:57,720 Speaker 1: No. I found that the philosopher Descartes Rene Descartes was 53 00:02:57,760 --> 00:03:01,680 Speaker 1: the first to describe kind of the modern accurate theory 54 00:03:01,800 --> 00:03:03,000 Speaker 1: in sixteen thirty seven. 55 00:03:03,160 --> 00:03:04,480 Speaker 2: Oh yeah, yeah, nice. 56 00:03:04,639 --> 00:03:06,640 Speaker 1: He's the first one. And it's like, hey, wait a minute, 57 00:03:06,840 --> 00:03:10,359 Speaker 1: there's some refraction and going on here. 58 00:03:10,360 --> 00:03:13,480 Speaker 2: Right, Well, most people usually associate that with Newton. 59 00:03:13,960 --> 00:03:17,079 Speaker 1: Yeah, well he's the first one to describe the spectrum. 60 00:03:16,680 --> 00:03:19,560 Speaker 2: Right he was. And apparently I saw this cool video 61 00:03:20,400 --> 00:03:25,720 Speaker 2: by Philip Ball on The Atlantic that basically it said 62 00:03:25,720 --> 00:03:31,720 Speaker 2: that Newton just made up the ROYGBIV spectrum. What do 63 00:03:31,720 --> 00:03:37,280 Speaker 2: you mean, so the red, orange, yellow, green, blue, indigo, violet. 64 00:03:37,440 --> 00:03:42,200 Speaker 2: Sure is Newton's interpretation of the rainbow. Before that, all 65 00:03:42,240 --> 00:03:44,840 Speaker 2: sorts of different cultures had different ideas of what made 66 00:03:44,880 --> 00:03:47,280 Speaker 2: up a rainbow, how many colors there were, what the 67 00:03:47,320 --> 00:03:53,520 Speaker 2: colors were, and our interpretation of the rainbow spectrum is 68 00:03:53,880 --> 00:03:57,200 Speaker 2: a Newtonian invention, and a lot of people say, it's 69 00:03:57,200 --> 00:04:01,760 Speaker 2: not seven, it's actually six, Indigo, not really there Newton 70 00:04:02,120 --> 00:04:05,960 Speaker 2: And apparently Newton was trying to shoehorn the rainbow spectrum 71 00:04:06,040 --> 00:04:10,640 Speaker 2: into the musical octave. So he's he tried. He's trying 72 00:04:10,680 --> 00:04:17,000 Speaker 2: to shoehorn music, which has sound wavelengths with light, which 73 00:04:17,000 --> 00:04:19,960 Speaker 2: has wavelengths, and making them one and the same. But 74 00:04:20,400 --> 00:04:23,159 Speaker 2: history has kind of shown like, no, there's six. Yeah, 75 00:04:23,160 --> 00:04:25,919 Speaker 2: we'll go with six for the rainbow. So Roy GBIV, 76 00:04:26,080 --> 00:04:28,720 Speaker 2: which we learned in school. Yeah, apparently I learned school. 77 00:04:28,760 --> 00:04:31,719 Speaker 2: You did too, Oh yeah, yeah, sure, it's just Roy Gibb. 78 00:04:33,400 --> 00:04:34,120 Speaker 2: There's no way to go. 79 00:04:35,120 --> 00:04:38,479 Speaker 1: Yeah. Well he was busy making is h cookies from 80 00:04:38,480 --> 00:04:41,280 Speaker 1: figs too, so he had lots of stuff going on. 81 00:04:41,360 --> 00:04:41,960 Speaker 2: Those are good. 82 00:04:42,360 --> 00:04:44,760 Speaker 1: Oh yeah, I can mound some picnicts. 83 00:04:44,920 --> 00:04:47,120 Speaker 2: Yeah, because they're good for you, so you can eat 84 00:04:47,120 --> 00:04:49,400 Speaker 2: the whole bag one's sitting if you want. 85 00:04:49,640 --> 00:04:52,440 Speaker 1: Yeah. I'd never buy them, but if I see them 86 00:04:52,440 --> 00:04:54,359 Speaker 1: on like if you give blood or something, they're on 87 00:04:54,360 --> 00:04:57,520 Speaker 1: a snack table. That's when I get my fig Newton on. 88 00:04:58,480 --> 00:05:02,600 Speaker 2: Yeah, so Newton wasn't the only one. Before Newton, there 89 00:05:02,640 --> 00:05:04,960 Speaker 2: was like a whole Celtic legend about the pot of 90 00:05:05,000 --> 00:05:07,320 Speaker 2: gold at the end of the rainbow. There was God 91 00:05:07,400 --> 00:05:11,560 Speaker 2: saying more bad after the Great Flood and promising it 92 00:05:11,560 --> 00:05:14,960 Speaker 2: would never happen again by showing rainbows come out after rains, 93 00:05:15,000 --> 00:05:17,719 Speaker 2: like it's fine, it's stopping, We're not going to flood 94 00:05:17,760 --> 00:05:18,359 Speaker 2: the earth again. 95 00:05:20,040 --> 00:05:21,560 Speaker 1: Of course, you can't find a pot of gold at 96 00:05:21,600 --> 00:05:23,120 Speaker 1: the end of a rainbow because you cannot go to 97 00:05:23,160 --> 00:05:26,239 Speaker 1: the end of a rainbow. Yes, you never. You can't 98 00:05:26,279 --> 00:05:28,839 Speaker 1: go under a rainbow. You can't go over a rainbow. 99 00:05:29,000 --> 00:05:33,040 Speaker 2: And we'll explain all this why in just a second. Sure, 100 00:05:33,200 --> 00:05:35,040 Speaker 2: but first forget we have to talk about to get 101 00:05:35,080 --> 00:05:37,080 Speaker 2: to the bottom of how rainbows work, which to me 102 00:05:37,160 --> 00:05:39,880 Speaker 2: I think is awesome. It's one of those things where Okay, 103 00:05:39,960 --> 00:05:42,480 Speaker 2: this is how it works, we understand it now. Yeah, 104 00:05:42,520 --> 00:05:46,360 Speaker 2: I love science. Stuff like that, baked in science, yes, 105 00:05:46,880 --> 00:05:51,160 Speaker 2: just done. It's not like scientists think this is what's happening, 106 00:05:51,200 --> 00:05:54,160 Speaker 2: and it's probably true, but that remains to be seen. 107 00:05:54,279 --> 00:05:55,719 Speaker 2: This is one of those ones where, like we know 108 00:05:55,760 --> 00:05:58,279 Speaker 2: how rainbows work, and here's how. But to get to 109 00:05:58,320 --> 00:06:01,760 Speaker 2: the bottom of rainbows, we have to understand how light 110 00:06:01,839 --> 00:06:02,560 Speaker 2: works first. 111 00:06:03,320 --> 00:06:05,360 Speaker 1: Yeah, and I thought this article, even though there was 112 00:06:05,400 --> 00:06:07,960 Speaker 1: a lot more digging in to do, I thought the 113 00:06:08,360 --> 00:06:13,640 Speaker 1: shopping cart explanation for the basically how light travels, yeah, 114 00:06:13,800 --> 00:06:17,040 Speaker 1: was pretty pretty darn good, fantastic. You know. One reason 115 00:06:17,080 --> 00:06:19,840 Speaker 1: they say visible spectrum is because the light is moving 116 00:06:19,880 --> 00:06:23,680 Speaker 1: so fast that you can't see it. It's like and 117 00:06:23,760 --> 00:06:26,160 Speaker 1: the combination of all those is white light, like the 118 00:06:26,160 --> 00:06:29,240 Speaker 1: sun is white light, because all those colors are super 119 00:06:29,240 --> 00:06:32,200 Speaker 1: imposed on one another. Yeah, But when it hits like 120 00:06:32,240 --> 00:06:34,479 Speaker 1: a water droplet or something else, it's going to slow 121 00:06:34,520 --> 00:06:37,359 Speaker 1: down enough, and we'll get to all this where you 122 00:06:37,360 --> 00:06:40,720 Speaker 1: can see those individual parts of the spectrum. 123 00:06:41,040 --> 00:06:44,880 Speaker 2: Right, And that shopping cart explanation, like you said, it 124 00:06:45,839 --> 00:06:48,400 Speaker 2: definitely simplifies the whole thing, and it's not quite right, 125 00:06:48,440 --> 00:06:50,720 Speaker 2: but it does a pretty good job of illustrating the 126 00:06:50,760 --> 00:06:52,440 Speaker 2: principles that are going on, you know. 127 00:06:52,760 --> 00:06:56,880 Speaker 1: Yeah, So basically light is moving at different speeds depending 128 00:06:56,920 --> 00:07:00,520 Speaker 1: on what kind of medium it's traveling through. Right, So, 129 00:07:00,600 --> 00:07:02,120 Speaker 1: like I said, when it hits water, it's going to 130 00:07:02,160 --> 00:07:04,120 Speaker 1: slow down a lot. That's going to change its speed. 131 00:07:04,360 --> 00:07:08,480 Speaker 1: If you're pushing a shopping cart, the asphalt is the medium. 132 00:07:09,000 --> 00:07:11,520 Speaker 1: If you push it onto grass, it's going to slow down. 133 00:07:11,720 --> 00:07:13,320 Speaker 1: That's a new medium. It's a new medium. 134 00:07:13,360 --> 00:07:16,320 Speaker 2: It's gone. It's transitioned from one media to another. 135 00:07:16,520 --> 00:07:19,480 Speaker 1: That's right. And if you hit that grass at an angle, 136 00:07:20,440 --> 00:07:22,600 Speaker 1: and we've probably done this if you had to, we're 137 00:07:22,600 --> 00:07:24,920 Speaker 1: able to steal a shopping cart. As a kid, you're 138 00:07:24,960 --> 00:07:28,720 Speaker 1: pushing your friends around in it, you're hauling through the neighborhood, 139 00:07:28,720 --> 00:07:31,040 Speaker 1: and you hit that grass at an angle, and it's 140 00:07:31,080 --> 00:07:33,880 Speaker 1: going to take a really sharp turn because that front 141 00:07:34,160 --> 00:07:35,960 Speaker 1: right wheel, let's say, is going to hit the grass 142 00:07:36,440 --> 00:07:38,440 Speaker 1: and all of a sudden, really quickly, it's going to 143 00:07:38,440 --> 00:07:40,840 Speaker 1: be traveling at a much slower speed than the rest 144 00:07:40,840 --> 00:07:43,000 Speaker 1: of it, and your friend's going to tumble out, and 145 00:07:43,000 --> 00:07:44,160 Speaker 1: everyone's going to have a good time. 146 00:07:44,360 --> 00:07:47,640 Speaker 2: Exactly. Just wear your helmet so that imagine that the 147 00:07:47,720 --> 00:07:52,200 Speaker 2: shopping cart is a photon of light or a beam 148 00:07:52,240 --> 00:07:59,280 Speaker 2: of white visible sunlight, and the grass is a prism. Yeah, 149 00:07:59,520 --> 00:08:02,200 Speaker 2: so the parking lot was air and it was moving through. 150 00:08:02,320 --> 00:08:04,720 Speaker 2: Just find no problem. But when it hit that prism, 151 00:08:05,000 --> 00:08:08,120 Speaker 2: it slowed down. Yes, And because it came at an angle. 152 00:08:08,360 --> 00:08:12,600 Speaker 2: One side of the light hit sooner and it made 153 00:08:12,600 --> 00:08:15,680 Speaker 2: it turn, and that is called refraction. The bending of 154 00:08:15,760 --> 00:08:16,800 Speaker 2: light is refraction. 155 00:08:17,120 --> 00:08:19,280 Speaker 1: Yeah. And in the case of a rainbow, that prism 156 00:08:19,400 --> 00:08:22,280 Speaker 1: is a rain drop. So I mean this is the 157 00:08:22,440 --> 00:08:24,680 Speaker 1: simple quick version. We'll get more detailed. But when it 158 00:08:24,720 --> 00:08:27,080 Speaker 1: hits that rain drop, it's going to slow down and 159 00:08:27,160 --> 00:08:27,880 Speaker 1: it's going to bend. 160 00:08:28,440 --> 00:08:34,360 Speaker 2: Right. So depending on the reflective index, which is how 161 00:08:35,080 --> 00:08:42,760 Speaker 2: much light bends, depending on the wavelength, the wavelength of light, 162 00:08:42,800 --> 00:08:45,440 Speaker 2: which is another term for color, sure is going to 163 00:08:45,480 --> 00:08:48,480 Speaker 2: bend at a different angle. So when that visible light, 164 00:08:48,600 --> 00:08:51,960 Speaker 2: which is all the colors of the visible spectrum combined, 165 00:08:52,280 --> 00:08:55,960 Speaker 2: hits a prism and it bends or a rain drop, right, 166 00:08:56,280 --> 00:08:59,720 Speaker 2: it bends at different angles because the wavelengths are different, 167 00:09:00,240 --> 00:09:05,160 Speaker 2: and so that visible light comes undone into its component wavelengths, 168 00:09:05,400 --> 00:09:07,880 Speaker 2: which are all the colors of the rainbow, and they 169 00:09:08,080 --> 00:09:08,839 Speaker 2: spread out. 170 00:09:09,360 --> 00:09:15,200 Speaker 1: It's called dispersion, right, Yeah, And that's it really. But 171 00:09:15,320 --> 00:09:17,560 Speaker 1: like I said, in this case, we're talking about rain 172 00:09:18,679 --> 00:09:21,280 Speaker 1: and because rain is you know, rain drops are all 173 00:09:21,280 --> 00:09:24,120 Speaker 1: different shapes and sizes, it's not going to be as 174 00:09:24,160 --> 00:09:26,760 Speaker 1: consistent as like a prism might be but it's going 175 00:09:26,800 --> 00:09:29,679 Speaker 1: to have the same effect. It's going to hit the 176 00:09:29,760 --> 00:09:33,280 Speaker 1: rain drop, it's going to slow down like the wheel 177 00:09:33,320 --> 00:09:36,600 Speaker 1: digging into the grass of the shopping cart, and it's 178 00:09:36,640 --> 00:09:40,320 Speaker 1: going to refract, and some of it's going to keep going. 179 00:09:40,360 --> 00:09:43,160 Speaker 1: Some of it's going to bounce back, but different the 180 00:09:43,200 --> 00:09:45,480 Speaker 1: different color is going to bounce at a different angle. 181 00:09:45,960 --> 00:09:49,480 Speaker 1: And it's all relative to where you are on the ground. Like, 182 00:09:49,960 --> 00:09:53,160 Speaker 1: no person two people see the same rainbow, right, So 183 00:09:53,720 --> 00:09:54,679 Speaker 1: we're all subjective. 184 00:09:54,880 --> 00:09:58,360 Speaker 2: Right, So when light hits the prism and it bends, 185 00:09:58,400 --> 00:10:01,920 Speaker 2: like you said, because the different lights have different wavelengths, 186 00:10:02,040 --> 00:10:06,960 Speaker 2: different colors have different wavelengths. Red has the longest wavelength, 187 00:10:07,080 --> 00:10:11,080 Speaker 2: so it bends the least. Yes, I believe violet has 188 00:10:11,160 --> 00:10:15,920 Speaker 2: the shortest wavelength, so it bends the most. But because 189 00:10:16,120 --> 00:10:20,240 Speaker 2: again because of these different wavelengths, they bend differently, so 190 00:10:20,280 --> 00:10:23,760 Speaker 2: that the light spreads apart and when it exits the prism, 191 00:10:24,240 --> 00:10:29,480 Speaker 2: it bends again and it forms that spectrum of separated 192 00:10:29,600 --> 00:10:31,280 Speaker 2: light separated out. 193 00:10:31,440 --> 00:10:33,560 Speaker 1: And this, if you notice we keep saying the word bend, 194 00:10:33,640 --> 00:10:37,360 Speaker 1: That's why a rainbow is an arc instead of like 195 00:10:37,400 --> 00:10:39,679 Speaker 1: a right angle, because the light is bending. 196 00:10:40,000 --> 00:10:42,319 Speaker 2: So Chuck We've been kind of teasing this a little bit, 197 00:10:42,360 --> 00:10:46,240 Speaker 2: but we'll get into exactly how you go from prism 198 00:10:46,360 --> 00:10:49,320 Speaker 2: ter rain, drop and hence to rainbow right after this. 199 00:11:10,400 --> 00:11:12,719 Speaker 1: All right, if you want to see a rainbow, or 200 00:11:12,720 --> 00:11:14,960 Speaker 1: if you're gonna see a rainbow, there need to be 201 00:11:15,000 --> 00:11:19,400 Speaker 1: three conditions. The sun's got to be behind you, big one. 202 00:11:19,520 --> 00:11:22,680 Speaker 1: You're gonna have moisture in front of you, right, and 203 00:11:23,160 --> 00:11:26,679 Speaker 1: you the sun must be shining that those sun's rays 204 00:11:27,000 --> 00:11:30,079 Speaker 1: must be shining at forty two degrees of what's called 205 00:11:30,120 --> 00:11:33,280 Speaker 1: the antisolar point, which is basically where the shadow of 206 00:11:33,320 --> 00:11:37,439 Speaker 1: your head is on the ground. Okay, so if you 207 00:11:37,480 --> 00:11:40,199 Speaker 1: can see the shadow of your head, that's gonna be 208 00:11:40,200 --> 00:11:42,400 Speaker 1: that forty two degree antisolar point, right. 209 00:11:43,040 --> 00:11:45,360 Speaker 2: So what you do is you put your back directly 210 00:11:45,440 --> 00:11:49,319 Speaker 2: to the sun, right, yeah, and then turn forty two degrees, 211 00:11:49,920 --> 00:11:52,520 Speaker 2: which I guess if it were negative forty two degrees, 212 00:11:52,559 --> 00:11:54,560 Speaker 2: you'd be turning to the left. So I guess you'd 213 00:11:54,600 --> 00:11:56,720 Speaker 2: be turning to the right a little bit about forty 214 00:11:56,720 --> 00:11:59,040 Speaker 2: two degrees, which you can kind of measure off in 215 00:11:59,080 --> 00:12:01,120 Speaker 2: your head. It's not quite for forty five degrees. And 216 00:12:01,160 --> 00:12:05,160 Speaker 2: if you're looking at rain and the sun's behind you. 217 00:12:05,160 --> 00:12:07,240 Speaker 2: You're gonna see where that forty two degrees is because 218 00:12:07,280 --> 00:12:09,720 Speaker 2: once you hit that point, there's your rainbow. 219 00:12:11,000 --> 00:12:12,640 Speaker 1: Yeah, but I mean you can move your body around 220 00:12:12,679 --> 00:12:15,400 Speaker 1: and still see the rainbow. I mean it's where the 221 00:12:15,480 --> 00:12:17,559 Speaker 1: sun is hitting. The sun's got to be hitting it 222 00:12:17,559 --> 00:12:18,480 Speaker 1: at forty two degrees. 223 00:12:18,800 --> 00:12:23,240 Speaker 2: I see. Okay, so Chuck, it doesn't matter then where 224 00:12:23,320 --> 00:12:29,080 Speaker 2: your head is. It's it's the rain drop's relation to 225 00:12:29,200 --> 00:12:32,559 Speaker 2: the sun. This needs to be forty two degrees the 226 00:12:32,840 --> 00:12:33,680 Speaker 2: producer rainbow. 227 00:12:33,800 --> 00:12:36,439 Speaker 1: Yeah, the sunshine must be hitting it at forty two degrees. 228 00:12:36,559 --> 00:12:39,839 Speaker 2: Okay, So let's let's get back to basics again for 229 00:12:39,880 --> 00:12:44,280 Speaker 2: a second. When the sunlight hits the rain drop, each 230 00:12:44,520 --> 00:12:47,840 Speaker 2: individual rain drop is acting like a prism, right, that's right. 231 00:12:47,880 --> 00:12:51,559 Speaker 2: So that visible white light is hitting a rain drop, Yeah, 232 00:12:51,679 --> 00:12:55,120 Speaker 2: it's hitting it at an angle. It's going kaboom into 233 00:12:55,200 --> 00:12:59,240 Speaker 2: like a colored spectrum inside the rain drop, and then 234 00:12:59,280 --> 00:13:04,200 Speaker 2: it's gonna flecked back again, refract again, exiting the rain drop, 235 00:13:04,280 --> 00:13:06,920 Speaker 2: so it bends again and it comes back at you. 236 00:13:08,120 --> 00:13:14,000 Speaker 2: The thing is is when you see a light colored 237 00:13:14,040 --> 00:13:17,240 Speaker 2: light wavelength from a rain drop, you're not seeing the 238 00:13:17,280 --> 00:13:20,160 Speaker 2: whole spectrum. You're not seeing millions of little rainbows. You're 239 00:13:20,160 --> 00:13:23,480 Speaker 2: seeing one big rainbow. And the reason why is because 240 00:13:23,520 --> 00:13:26,680 Speaker 2: each individual rain drop, depending on its relation to you 241 00:13:26,960 --> 00:13:30,640 Speaker 2: and I guess to the sun, is shooting one color 242 00:13:30,720 --> 00:13:33,839 Speaker 2: at you. It's shooting all colors at you, but you're 243 00:13:33,880 --> 00:13:36,440 Speaker 2: only picking up on one color because there's only one 244 00:13:36,520 --> 00:13:41,440 Speaker 2: color from a rain drop that is angled correctly to 245 00:13:41,600 --> 00:13:45,640 Speaker 2: you and your line of sight so that it's the 246 00:13:45,679 --> 00:13:48,559 Speaker 2: only one you're picking up on is red. And then 247 00:13:48,800 --> 00:13:51,760 Speaker 2: all of the rain drops around that rain drop are 248 00:13:51,800 --> 00:13:54,960 Speaker 2: doing the same thing. They're shooting about in relation to 249 00:13:55,040 --> 00:13:58,439 Speaker 2: your line of sight, red towards you. But then the 250 00:13:58,520 --> 00:14:02,000 Speaker 2: rain drops a little lower than that, right are shooting yellow, 251 00:14:02,440 --> 00:14:04,240 Speaker 2: and then lower than that green, and so on and 252 00:14:04,280 --> 00:14:06,240 Speaker 2: so on, and so you get to violet. And so 253 00:14:06,800 --> 00:14:09,880 Speaker 2: these groups are rain these groups of rain drops are 254 00:14:09,960 --> 00:14:15,360 Speaker 2: producing this rainbow cumulatively as far as your line of 255 00:14:15,400 --> 00:14:16,440 Speaker 2: sight is concerned. 256 00:14:16,520 --> 00:14:18,560 Speaker 1: Yeah, because the rain is just falling, so where it 257 00:14:18,640 --> 00:14:20,720 Speaker 1: is in the sky, I mean, as it falls, it's 258 00:14:20,760 --> 00:14:21,720 Speaker 1: going to be changing color. 259 00:14:22,080 --> 00:14:22,320 Speaker 2: Right. 260 00:14:22,400 --> 00:14:25,400 Speaker 1: You know, it's not like frozen in mid air or anything. 261 00:14:25,520 --> 00:14:26,560 Speaker 2: But it seems like it. 262 00:14:26,680 --> 00:14:28,960 Speaker 1: But it seems like it right exactly. 263 00:14:28,560 --> 00:14:29,960 Speaker 2: Isn't that phenomenal. 264 00:14:30,160 --> 00:14:30,720 Speaker 1: It really is. 265 00:14:31,080 --> 00:14:33,360 Speaker 2: I just think that's just as cool as it gets. 266 00:14:33,480 --> 00:14:36,520 Speaker 1: Yeah, it's super cool. And you'll always notice too, the 267 00:14:36,560 --> 00:14:38,960 Speaker 1: sky under the rainbow is going to be brighter than out. 268 00:14:39,720 --> 00:14:42,240 Speaker 1: And when you've got a double rainbow, which we'll get to, 269 00:14:43,040 --> 00:14:48,680 Speaker 1: the area between those two is usually really dark, right, 270 00:14:48,720 --> 00:14:49,360 Speaker 1: And that's. 271 00:14:49,160 --> 00:14:51,520 Speaker 2: Called the Alexander's Dark Band. 272 00:14:51,680 --> 00:14:57,280 Speaker 1: Yeah, Alexander's Band because he was Alexander Afrio Aphrodisius was 273 00:14:57,280 --> 00:15:01,600 Speaker 1: the first dude, huh to describe that. That's a great name, 274 00:15:02,040 --> 00:15:04,880 Speaker 1: Alexander Afrodisias. Yeah, it's pretty good. 275 00:15:04,960 --> 00:15:08,440 Speaker 2: It sounds like a seventies exploitation movie or something totally. 276 00:15:09,200 --> 00:15:11,680 Speaker 2: But yeah. So the reason why in between the double 277 00:15:11,760 --> 00:15:16,760 Speaker 2: rainbows you have Alexander's Band is because the light there 278 00:15:17,200 --> 00:15:22,400 Speaker 2: is reflecting away from you and it's so it's a 279 00:15:22,480 --> 00:15:23,120 Speaker 2: dark area. 280 00:15:23,280 --> 00:15:23,840 Speaker 1: Yeah. 281 00:15:23,880 --> 00:15:28,040 Speaker 2: So the sunlight hitting those rain drops is going away 282 00:15:28,520 --> 00:15:31,760 Speaker 2: like oh, it's dark inside the rainbow, all of that 283 00:15:31,840 --> 00:15:35,120 Speaker 2: light is reflecting back to you and you're seeing all 284 00:15:35,160 --> 00:15:37,960 Speaker 2: of the different colors come at you and they're recombining 285 00:15:38,000 --> 00:15:41,720 Speaker 2: indivisible light, so there's no color, it's just bright sunlight 286 00:15:41,760 --> 00:15:42,280 Speaker 2: in the middle. 287 00:15:43,040 --> 00:15:45,520 Speaker 1: Yeah, and that you know, sunlight they also always describe 288 00:15:45,520 --> 00:15:48,120 Speaker 1: it as white, I mean, sunlight as all the colors. 289 00:15:48,760 --> 00:15:49,960 Speaker 1: We just you know, can't see it. 290 00:15:50,120 --> 00:15:54,080 Speaker 2: Yeah, we should really do a whole How Color Works episode. 291 00:15:54,200 --> 00:15:57,520 Speaker 2: It's fascinating stuff. But yeah, depending on whether you're a 292 00:15:57,560 --> 00:16:03,800 Speaker 2: painter who's mixing chemical, whether you're a chemist or a physicist, Yeah, 293 00:16:03,880 --> 00:16:06,760 Speaker 2: white is either the presence of all colors or the 294 00:16:06,920 --> 00:16:08,080 Speaker 2: absence of color. 295 00:16:08,320 --> 00:16:10,280 Speaker 1: Right, you know, it's kind of mind blowing. 296 00:16:10,280 --> 00:16:11,960 Speaker 2: We should totally do how color Works. 297 00:16:13,240 --> 00:16:15,120 Speaker 1: Well, I guess after this break we'll talk a little 298 00:16:15,120 --> 00:16:18,800 Speaker 1: bit more about the double rainbow all the way and 299 00:16:18,920 --> 00:16:21,160 Speaker 1: even well we'll just leave it at that. 300 00:16:21,280 --> 00:16:44,160 Speaker 2: What does it mean? So, Chuck, you want to talk 301 00:16:44,160 --> 00:16:46,600 Speaker 2: about double rainbows and what forms them? 302 00:16:46,800 --> 00:16:48,040 Speaker 1: It's pretty much the same thing. 303 00:16:47,960 --> 00:16:51,400 Speaker 2: Right, Yeah, the lights refracted twice. 304 00:16:51,720 --> 00:16:53,160 Speaker 1: Yeah, it's just a double refraction. 305 00:16:53,520 --> 00:16:55,360 Speaker 2: Yeah. Well, what's cool is if you look at a 306 00:16:55,400 --> 00:16:58,760 Speaker 2: double rainbow, the one on top, the higher one that's 307 00:16:58,840 --> 00:17:04,520 Speaker 2: the second refraction, Yes, is reversed. So rather than red 308 00:17:04,560 --> 00:17:08,280 Speaker 2: being on the top, yeah, it's on the bottom. Yeah, 309 00:17:08,400 --> 00:17:11,479 Speaker 2: it's a reverse rainbow, is what a double rainbow is. 310 00:17:11,520 --> 00:17:14,520 Speaker 1: And you can have a triple and even a quad. Nice, 311 00:17:14,680 --> 00:17:17,640 Speaker 1: but it's rare. Yeah, like I've seen a little bit 312 00:17:17,640 --> 00:17:20,960 Speaker 1: of a triple once. I think, to where you just 313 00:17:21,000 --> 00:17:25,520 Speaker 1: see the faintest hint of that third one. And if 314 00:17:25,520 --> 00:17:27,840 Speaker 1: you're seeing that, that means the niche I think it's 315 00:17:27,840 --> 00:17:30,639 Speaker 1: called the primary and secondary. That means your primary is 316 00:17:30,720 --> 00:17:34,040 Speaker 1: super super super sharp. Yeah, to where it looks like 317 00:17:34,080 --> 00:17:37,560 Speaker 1: it's drawn on the sky, painted on the sky. Nice, 318 00:17:37,560 --> 00:17:39,080 Speaker 1: and then your secondary is gonna be a little more 319 00:17:39,119 --> 00:17:41,960 Speaker 1: faint than the third one because the triple refraction. You know, 320 00:17:42,000 --> 00:17:45,080 Speaker 1: it's not the easiest thing to occur in nature. 321 00:17:45,200 --> 00:17:48,320 Speaker 2: Yeah, And one of the things that makes the primary 322 00:17:48,400 --> 00:17:51,320 Speaker 2: rainbow and then hence the secondary. And I guess tertiarian 323 00:17:51,400 --> 00:17:55,520 Speaker 2: so on rainbows bright is the amount of sunlight and 324 00:17:55,560 --> 00:17:59,080 Speaker 2: the number of rain drops because remember those rain drops 325 00:17:59,080 --> 00:18:03,679 Speaker 2: that you're seeing that the spectrum is made up of 326 00:18:04,160 --> 00:18:06,520 Speaker 2: light wavelengths that's coming at you from a bunch of 327 00:18:06,560 --> 00:18:08,840 Speaker 2: different rain drops and they reinforce one another, and the 328 00:18:08,840 --> 00:18:11,840 Speaker 2: more they reinforce one another, the brighter the rainbow is. 329 00:18:12,320 --> 00:18:14,400 Speaker 1: Yeah, and you'll, I mean, I feel like I usually 330 00:18:14,400 --> 00:18:17,160 Speaker 1: see rainbows when it's not raining where I'm standing, right, 331 00:18:17,480 --> 00:18:20,920 Speaker 1: but that doesn't matter. It's you know, oh, you. 332 00:18:20,880 --> 00:18:23,040 Speaker 2: Can be being rained on and still see the rainbow. 333 00:18:23,200 --> 00:18:26,040 Speaker 1: Well, yeah, but it's like sometimes it's like a super 334 00:18:26,119 --> 00:18:28,320 Speaker 1: light rain where it has just rained really hard. Maybe 335 00:18:28,320 --> 00:18:31,080 Speaker 1: it's tapering off or maybe stopped altogether. But the point 336 00:18:31,160 --> 00:18:34,720 Speaker 1: is where the rainbow is. It's not like they said earlier, 337 00:18:34,760 --> 00:18:37,760 Speaker 1: you can't drive up to a rainbow. I'm going to 338 00:18:37,840 --> 00:18:40,880 Speaker 1: go up and find that thing, because it's just a 339 00:18:40,920 --> 00:18:43,200 Speaker 1: perspective trick basically. Right. 340 00:18:43,280 --> 00:18:47,200 Speaker 2: The only apparently from this Scientific American article you sent, 341 00:18:47,560 --> 00:18:50,720 Speaker 2: the only visual information we get from a rainbow is 342 00:18:50,800 --> 00:18:52,480 Speaker 2: the band of its arc. 343 00:18:53,160 --> 00:18:55,120 Speaker 1: Yeah, and everything else is what's around. 344 00:18:54,840 --> 00:18:58,760 Speaker 2: It, right, right, So, like, if a rainbow seems really huge, 345 00:18:58,920 --> 00:19:01,639 Speaker 2: it's because, say, the mountains in the background look small, 346 00:19:02,080 --> 00:19:05,560 Speaker 2: which makes the rainbow, by contrast, look very big and majestic. 347 00:19:06,040 --> 00:19:08,719 Speaker 2: If we're close to, say, like the mountains are like 348 00:19:08,760 --> 00:19:11,880 Speaker 2: a cell phone tower or something like that, the rainbow 349 00:19:11,960 --> 00:19:13,960 Speaker 2: may look very small by comparison. 350 00:19:14,280 --> 00:19:15,919 Speaker 1: Yeah, And the way they liken it, and that I 351 00:19:15,960 --> 00:19:20,000 Speaker 1: think in that article I think was like the human head, 352 00:19:20,000 --> 00:19:23,040 Speaker 1: it's like roughly the same size, but if it was 353 00:19:23,119 --> 00:19:24,600 Speaker 1: right in front of your face, it would block out 354 00:19:24,640 --> 00:19:26,760 Speaker 1: a whole movie screen. But if it was further away, 355 00:19:27,280 --> 00:19:29,440 Speaker 1: it would just be like, hey, there's that guy's head. 356 00:19:29,560 --> 00:19:33,080 Speaker 2: It's the same thing, same thing. And then Phil Plait, 357 00:19:33,160 --> 00:19:38,800 Speaker 2: who's who does the Bad Astronomer blog for Slate, he 358 00:19:39,480 --> 00:19:43,840 Speaker 2: did a pretty good explanation of full circle rainbows. 359 00:19:43,920 --> 00:19:46,000 Speaker 1: Yeah, I had never ever heard of that until you 360 00:19:46,040 --> 00:19:48,120 Speaker 1: sent me that. So it makes sense though. 361 00:19:47,960 --> 00:19:50,520 Speaker 2: It totally does. So remember we talked about a rainbow 362 00:19:50,640 --> 00:19:53,600 Speaker 2: arcing over the sky and because the light is bent 363 00:19:53,920 --> 00:19:55,080 Speaker 2: out of the prism. 364 00:19:55,440 --> 00:19:56,920 Speaker 1: Well, no, it's because it starts on one part of 365 00:19:56,960 --> 00:19:58,920 Speaker 1: the ground and ends on another part of the ground, right. 366 00:19:58,800 --> 00:20:02,680 Speaker 2: Where the goal is. The reason why it has that 367 00:20:02,920 --> 00:20:06,439 Speaker 2: arc is because what you're seeing is part of what 368 00:20:06,680 --> 00:20:10,040 Speaker 2: really is a full circle, and it's depending on where 369 00:20:10,080 --> 00:20:13,280 Speaker 2: you are. Now, you have a certain amount of rain 370 00:20:13,359 --> 00:20:18,840 Speaker 2: drops available to reflect the light to you. 371 00:20:19,119 --> 00:20:19,320 Speaker 1: Yeah. 372 00:20:19,560 --> 00:20:22,240 Speaker 2: Right, So when you're on the ground and you're looking 373 00:20:22,720 --> 00:20:24,760 Speaker 2: up or just over to the horizon, sure you have 374 00:20:24,760 --> 00:20:26,840 Speaker 2: a certain amount of rain drops available to you to 375 00:20:26,920 --> 00:20:30,600 Speaker 2: form a rainbow. If you were able to get away 376 00:20:30,600 --> 00:20:33,359 Speaker 2: from the ground, you have even more rain drops not 377 00:20:33,480 --> 00:20:37,280 Speaker 2: just above you, but now below you as well, and 378 00:20:37,320 --> 00:20:39,879 Speaker 2: you can see a full circle. That is the actual 379 00:20:39,960 --> 00:20:44,200 Speaker 2: real rainbow. Yeah, so a real rainbow depending on where 380 00:20:44,240 --> 00:20:47,199 Speaker 2: you are in relation to the ground is either a 381 00:20:47,280 --> 00:20:49,800 Speaker 2: part of a circle, an arc, or a full circle. 382 00:20:50,359 --> 00:20:52,200 Speaker 1: Yeah, and there was a picture. I mean he said 383 00:20:52,200 --> 00:20:55,520 Speaker 1: that pilots see him all the time, or I guess 384 00:20:55,520 --> 00:20:58,199 Speaker 1: if you're in astute flyer, that's not just like a 385 00:20:58,280 --> 00:21:02,640 Speaker 1: sleep with a black blankets, right, Yeah, you can look 386 00:21:02,640 --> 00:21:04,040 Speaker 1: out a window of a plane and see one too, 387 00:21:04,080 --> 00:21:06,919 Speaker 1: because you're above it. Right, It's pretty neat. I mean, 388 00:21:06,960 --> 00:21:09,199 Speaker 1: there was a photo of one and it was like, 389 00:21:09,320 --> 00:21:11,320 Speaker 1: oh wow, there's a full circle rainbow. 390 00:21:11,400 --> 00:21:13,639 Speaker 2: Full circle rainbow. It looks it looks kind of like 391 00:21:13,680 --> 00:21:16,240 Speaker 2: a lens flare a little bit, but yeah, to a 392 00:21:16,280 --> 00:21:20,200 Speaker 2: rainbow lens flair and Phil Plate had in that same 393 00:21:21,040 --> 00:21:26,200 Speaker 2: blog post a double circle rainbow, which was really neat. 394 00:21:26,359 --> 00:21:29,600 Speaker 1: Yeah, so go check that out. I agree that was 395 00:21:29,640 --> 00:21:33,359 Speaker 1: pretty cool. Yeah, you know that thing we were talking 396 00:21:33,359 --> 00:21:37,440 Speaker 1: about earlier too, about the perspective. That's why the I 397 00:21:37,480 --> 00:21:39,040 Speaker 1: think I thought you did it. Don't be dumb about 398 00:21:39,040 --> 00:21:40,840 Speaker 1: why the moon looks bigger? Have you done that? 399 00:21:41,240 --> 00:21:44,240 Speaker 2: No, it's so why can you see the moon during 400 00:21:44,240 --> 00:21:45,119 Speaker 2: the day sometimes? 401 00:21:45,320 --> 00:21:46,560 Speaker 1: Oh why is that? 402 00:21:47,200 --> 00:21:48,520 Speaker 2: Well, I'll tell you why. 403 00:21:48,359 --> 00:21:50,560 Speaker 1: Because I saw it like a one the other day 404 00:21:50,560 --> 00:21:52,040 Speaker 1: that was like super late in the day. 405 00:21:52,600 --> 00:21:55,600 Speaker 2: Well, the reason why. A better question is why can't 406 00:21:55,640 --> 00:21:57,920 Speaker 2: you see the moon all the time, even during the day. 407 00:21:58,119 --> 00:22:01,200 Speaker 2: So it's not the Moon's very bright. It's the brightest 408 00:22:01,240 --> 00:22:03,760 Speaker 2: object in the sky, second only to the Sun. Sure, 409 00:22:04,080 --> 00:22:06,720 Speaker 2: but it also gets its light from the Sun. So 410 00:22:06,960 --> 00:22:09,919 Speaker 2: most of the time when you can't see the Moon 411 00:22:10,480 --> 00:22:14,920 Speaker 2: during the day, it's because the moon is behind you, right, 412 00:22:15,359 --> 00:22:17,840 Speaker 2: So the light that it's getting from the Sun is 413 00:22:17,880 --> 00:22:20,920 Speaker 2: behind you. Now, if the moon is closer to the Sun, 414 00:22:21,240 --> 00:22:24,040 Speaker 2: like depending on where the moon is in its lunar phase, 415 00:22:24,800 --> 00:22:27,399 Speaker 2: then you can look up and see the Sun and 416 00:22:27,440 --> 00:22:29,960 Speaker 2: the Moon at the same time. It's above the horizon. 417 00:22:30,080 --> 00:22:33,400 Speaker 2: In other words, Oh okay, so if the moon were 418 00:22:33,440 --> 00:22:35,920 Speaker 2: always visible above the horizon, you'd always be able to 419 00:22:35,920 --> 00:22:38,880 Speaker 2: see it during the day, gotcha. And it just has 420 00:22:38,920 --> 00:22:40,919 Speaker 2: to do with where it is in relation to the 421 00:22:40,960 --> 00:22:43,639 Speaker 2: Sun in the lunar phase. Does that make sense? 422 00:22:43,840 --> 00:22:44,159 Speaker 1: Yeah? 423 00:22:44,480 --> 00:22:47,679 Speaker 2: If it's just go watch that, don't be dumb on it. 424 00:22:47,760 --> 00:22:51,120 Speaker 1: Yeah, they call that a bonus, an impromptu bonus. 425 00:22:51,200 --> 00:22:51,760 Speaker 2: Yeah. 426 00:22:51,800 --> 00:22:53,960 Speaker 1: But the reason why the moon will look really huge 427 00:22:53,960 --> 00:22:56,120 Speaker 1: in the sky is because the same thing we're talking 428 00:22:56,119 --> 00:22:59,040 Speaker 1: about with the perspective, like the mountain is like when 429 00:22:59,040 --> 00:23:02,280 Speaker 1: you're low on the horizon, and it's gonna look enormous. 430 00:23:02,119 --> 00:23:06,600 Speaker 2: Right if there's a lot less stuff, Yeah, near close 431 00:23:06,680 --> 00:23:09,600 Speaker 2: to you, Yeah, it's gonna look very big. 432 00:23:09,880 --> 00:23:13,000 Speaker 1: Yeah. And when I went to Montana years ago. My 433 00:23:13,240 --> 00:23:16,639 Speaker 1: explanation I got because you step off the plane and 434 00:23:16,680 --> 00:23:19,880 Speaker 1: you think, wow, the sky does look bigger, Like what's 435 00:23:19,920 --> 00:23:21,760 Speaker 1: the deal? They call it Big Sky Country, and it 436 00:23:21,800 --> 00:23:24,280 Speaker 1: really does look bigger. And the explanation I got from 437 00:23:24,280 --> 00:23:27,440 Speaker 1: the locals, which it's because the clouds. So again it's 438 00:23:27,480 --> 00:23:28,520 Speaker 1: just a perspective trick. 439 00:23:29,080 --> 00:23:31,080 Speaker 2: So like the mountains are way over there. 440 00:23:31,240 --> 00:23:33,520 Speaker 1: I think it's just the clouds that they typically get 441 00:23:33,560 --> 00:23:36,800 Speaker 1: are the big, huge, puffy clouds. 442 00:23:37,119 --> 00:23:39,159 Speaker 2: But they look big in relation to the mountains in 443 00:23:39,200 --> 00:23:39,760 Speaker 2: the distance. 444 00:23:40,240 --> 00:23:42,200 Speaker 1: Yeah, I think that's the deal. So it makes the 445 00:23:42,240 --> 00:23:43,520 Speaker 1: sky appear to look larger. 446 00:23:43,840 --> 00:23:47,840 Speaker 2: Plus I imagine also there's fewer obstacles and obstructions, so 447 00:23:47,880 --> 00:23:50,640 Speaker 2: that it's just there's more sky to see and take 448 00:23:50,720 --> 00:23:52,000 Speaker 2: in just looking around, right. 449 00:23:52,119 --> 00:23:54,040 Speaker 1: Yeah. Yeah, Like when I lived in Yuma and you 450 00:23:54,080 --> 00:23:56,000 Speaker 1: go out in the desert and you can see like 451 00:23:56,600 --> 00:24:00,080 Speaker 1: one hundred and degrees from horizon to horizon, right, But 452 00:24:00,119 --> 00:24:04,160 Speaker 1: they don't have the cloud formations, So the sky looks 453 00:24:04,200 --> 00:24:05,920 Speaker 1: bigger in Montana than it does like in the middle 454 00:24:05,920 --> 00:24:08,159 Speaker 1: of the desert. Yeah, because most of the time in 455 00:24:08,200 --> 00:24:11,240 Speaker 1: the desert you're going to see that, you know, just blue, 456 00:24:11,320 --> 00:24:15,560 Speaker 1: nothing but blue. Yeah, so there's no perspective nice, you know, 457 00:24:15,800 --> 00:24:17,320 Speaker 1: like when you take a picture of something to sell 458 00:24:17,320 --> 00:24:20,040 Speaker 1: on eBay, you put your fist next to it so 459 00:24:20,080 --> 00:24:21,600 Speaker 1: people know how big it is. 460 00:24:21,600 --> 00:24:22,399 Speaker 2: Is that what people do? 461 00:24:23,080 --> 00:24:23,240 Speaker 1: Oh? 462 00:24:23,320 --> 00:24:26,080 Speaker 2: Sure, I've seen quarters and rulers. Never seen a fish. 463 00:24:26,800 --> 00:24:29,400 Speaker 1: Yeah, that's quarters and rulers. That's probably a better rule 464 00:24:29,400 --> 00:24:29,680 Speaker 1: of thumb. 465 00:24:29,720 --> 00:24:33,919 Speaker 2: Yeah right, Yeah, so, Chuck, I got a couple other things. Apparently, 466 00:24:34,440 --> 00:24:37,679 Speaker 2: when you look at a rainbow, it's not an even 467 00:24:37,760 --> 00:24:42,159 Speaker 2: division or an even representation of all the colors. You 468 00:24:42,200 --> 00:24:45,840 Speaker 2: see the most red, it's the most visible. Apparently, thirty 469 00:24:45,880 --> 00:24:48,879 Speaker 2: eight percent of a rainbow is red and green is 470 00:24:48,920 --> 00:24:55,240 Speaker 2: second at fifteen. Blue is the least with just eleven percent. 471 00:24:56,320 --> 00:24:56,920 Speaker 1: What is green? 472 00:24:57,359 --> 00:25:01,359 Speaker 2: Green is twenty two percent? Okay, twenty two percent of 473 00:25:01,520 --> 00:25:02,399 Speaker 2: rainbow green? 474 00:25:02,920 --> 00:25:05,199 Speaker 1: Interesting. I wonder what color blind we need to do 475 00:25:05,320 --> 00:25:09,200 Speaker 1: on color blindness. But it's I looked into the article 476 00:25:09,200 --> 00:25:12,440 Speaker 1: and it was just sort of started to melt my brain. Yeah, 477 00:25:12,480 --> 00:25:15,040 Speaker 1: like all this stuff. So I just said, no, put 478 00:25:15,040 --> 00:25:15,879 Speaker 1: that on the back burner. 479 00:25:15,920 --> 00:25:17,240 Speaker 2: I think you did a great job with this. 480 00:25:17,880 --> 00:25:20,399 Speaker 1: Well we'll see, I'm sure we'll get stuff wrong. 481 00:25:21,400 --> 00:25:25,600 Speaker 2: And lastly, the LGBT rainbow flag designed in nineteen seventy 482 00:25:25,640 --> 00:25:28,199 Speaker 2: eight by a guy named Gilbert Baker. Really and it 483 00:25:28,280 --> 00:25:30,680 Speaker 2: used to have eight. It had turquoise and hot pink 484 00:25:30,760 --> 00:25:33,600 Speaker 2: on it before. Yeah, but apparently they ran out of 485 00:25:33,640 --> 00:25:36,199 Speaker 2: fabric for hot pink because the things like started to 486 00:25:36,240 --> 00:25:39,399 Speaker 2: take off, so they discontinued that, and I think the 487 00:25:39,440 --> 00:25:42,119 Speaker 2: same went for the turquoise one. Too interesting, we just 488 00:25:42,160 --> 00:25:42,800 Speaker 2: went with six. 489 00:25:43,480 --> 00:25:49,000 Speaker 1: And now is it a it's a shining monument for establishments, 490 00:25:49,760 --> 00:25:52,520 Speaker 1: for people to say I want to go in there, 491 00:25:52,680 --> 00:25:54,320 Speaker 1: and some people to say I don't want to go 492 00:25:54,359 --> 00:25:56,560 Speaker 1: in there, sadly, right, you know. 493 00:25:56,800 --> 00:25:57,680 Speaker 2: Yeah. 494 00:25:57,880 --> 00:26:01,240 Speaker 1: We went to a gay bar in Philadelphia one afternoon, 495 00:26:03,119 --> 00:26:05,320 Speaker 1: and I say, by accident, not like it was a 496 00:26:05,320 --> 00:26:05,760 Speaker 1: big deal. 497 00:26:06,040 --> 00:26:07,000 Speaker 2: Was it the Blue Oyster? 498 00:26:07,480 --> 00:26:10,680 Speaker 1: No? No, And it was in the afternoon, so that 499 00:26:10,800 --> 00:26:12,480 Speaker 1: was just you know, you know how it is in 500 00:26:12,520 --> 00:26:15,600 Speaker 1: some bars in the afternoon. Yeah, like the the serious 501 00:26:15,600 --> 00:26:16,520 Speaker 1: regulars are in there. 502 00:26:16,640 --> 00:26:19,680 Speaker 2: Sure it doesn't matter gay, straight, whatever, and. 503 00:26:19,640 --> 00:26:21,479 Speaker 1: They were very cool guys, and they were like, uh, 504 00:26:21,720 --> 00:26:23,439 Speaker 1: and it was a big group of us, and I 505 00:26:23,480 --> 00:26:25,720 Speaker 1: think they were like, you know, you know you're in 506 00:26:25,760 --> 00:26:27,760 Speaker 1: a gay bar, right, And they were kind of pointing 507 00:26:27,800 --> 00:26:31,200 Speaker 1: that out. And I was like, oh, well, great, serve 508 00:26:31,280 --> 00:26:34,160 Speaker 1: me a bloody Mary then, right exactly, Like I didn't 509 00:26:34,160 --> 00:26:35,760 Speaker 1: know if he thought we were. I think he knew 510 00:26:35,760 --> 00:26:38,520 Speaker 1: where from out of town. Sure, so he was just 511 00:26:38,560 --> 00:26:41,720 Speaker 1: a letter yeah, yeah, like he didn't want any trouble. 512 00:26:42,680 --> 00:26:43,919 Speaker 2: Oh gotcha, you know. 513 00:26:44,840 --> 00:26:46,560 Speaker 1: I was like, we're not like that, my friend. 514 00:26:46,880 --> 00:26:47,320 Speaker 2: That's good. 515 00:26:47,400 --> 00:26:48,360 Speaker 1: Just a happy accident. 516 00:26:48,480 --> 00:26:51,760 Speaker 2: Does a good ending to the rainbow episode. Yeah. Uh. 517 00:26:51,880 --> 00:26:53,960 Speaker 2: If you want to know more about rainbows, go check 518 00:26:53,960 --> 00:26:57,600 Speaker 2: out our article on the site rainbows. Just type that 519 00:26:57,640 --> 00:26:59,760 Speaker 2: word into how stuff works. Go check out that Slate 520 00:27:00,400 --> 00:27:03,400 Speaker 2: and Scientific American in the Atlantic. Some good stuff out there. 521 00:27:04,280 --> 00:27:07,040 Speaker 2: And I said search bar. I think in there somewhere, 522 00:27:07,080 --> 00:27:08,560 Speaker 2: which means it is time for listener mail. 523 00:27:11,880 --> 00:27:17,760 Speaker 1: That's right. I'm gonna call this Pliny the Beer and 524 00:27:17,840 --> 00:27:24,080 Speaker 1: this is from Cory and I think Corey's in San Francisco. Hey, guys, 525 00:27:24,080 --> 00:27:27,119 Speaker 1: love the podcast. I was listening to Cinnamon today and 526 00:27:27,160 --> 00:27:29,960 Speaker 1: there was an exchange about Pliny and a comment that 527 00:27:30,000 --> 00:27:33,159 Speaker 1: there was one and only. I think anyone in the 528 00:27:33,160 --> 00:27:35,959 Speaker 1: Bay Area would know that there are two Pliny's, the 529 00:27:36,000 --> 00:27:39,240 Speaker 1: Elder and the Younger. That's because one of our local 530 00:27:39,240 --> 00:27:41,600 Speaker 1: breweries has a beer called Pliny the Elder, which is 531 00:27:41,640 --> 00:27:45,040 Speaker 1: known by beer ficionados as one of the best beers 532 00:27:45,280 --> 00:27:48,360 Speaker 1: out there. In fact, it sells out weekly from local groceries. 533 00:27:48,400 --> 00:27:52,000 Speaker 1: They also make a Pliny the Younger, which only comes 534 00:27:52,000 --> 00:27:55,080 Speaker 1: out for two weeks a year, and people wait in 535 00:27:55,119 --> 00:27:57,960 Speaker 1: line for hours just to get a pint. And there 536 00:27:58,040 --> 00:28:00,800 Speaker 1: is also a real historical Pliny the Elder and Planty 537 00:28:00,840 --> 00:28:02,320 Speaker 1: the Younger, who was his nephew. 538 00:28:03,119 --> 00:28:05,000 Speaker 2: I didn't realize it was his nephew, and. 539 00:28:04,920 --> 00:28:07,360 Speaker 1: That is from Corey. And I did look it up 540 00:28:07,440 --> 00:28:10,199 Speaker 1: because the two weeks thing, I did not believe it, 541 00:28:10,240 --> 00:28:11,760 Speaker 1: but I just, you know, sometimes you want to see 542 00:28:11,760 --> 00:28:14,320 Speaker 1: it with your own eyes, huh. And yeah, Pliny the 543 00:28:14,359 --> 00:28:15,960 Speaker 1: Younger is a triple IPA. 544 00:28:17,080 --> 00:28:18,800 Speaker 2: Oh well, that sounds awesome. 545 00:28:18,720 --> 00:28:22,919 Speaker 1: Named for the nephew and adopted son evidently, and it 546 00:28:23,000 --> 00:28:26,160 Speaker 1: is pub draft only. They don't even bottle it, very 547 00:28:26,200 --> 00:28:31,000 Speaker 1: limited distribution locally and it's seasonal, so for just two 548 00:28:31,000 --> 00:28:36,000 Speaker 1: weeks a year in February at the Bay of Bengal. 549 00:28:36,320 --> 00:28:38,480 Speaker 1: You can get it in a bar, I guess in 550 00:28:38,520 --> 00:28:41,920 Speaker 1: San Francisco. Nice and it is a ten point twenty 551 00:28:42,000 --> 00:28:49,240 Speaker 1: five percenter Wow, Yeah, as opposed to eight for the Elder. 552 00:28:50,360 --> 00:28:51,640 Speaker 2: And they're both IPAs. 553 00:28:52,120 --> 00:28:54,840 Speaker 1: Yeah, one's the double and the triple, so that's a 554 00:28:54,880 --> 00:28:57,000 Speaker 1: live Yeah, and you can get to planey the Elder 555 00:28:57,000 --> 00:29:00,400 Speaker 1: and the bottles. It's not quite as exclusive to try 556 00:29:00,440 --> 00:29:03,440 Speaker 1: that on our tour. Yeah, I guess only the Elder 557 00:29:03,640 --> 00:29:04,760 Speaker 1: and yes, someone. 558 00:29:04,880 --> 00:29:06,840 Speaker 2: Unless we luck out and happen to be there during 559 00:29:06,880 --> 00:29:08,040 Speaker 2: that two week period. Huh. 560 00:29:08,080 --> 00:29:10,640 Speaker 1: Well, no, it's in February always that what you said. 561 00:29:10,800 --> 00:29:13,360 Speaker 1: But if there's a bar out there that maybe wanted 562 00:29:13,400 --> 00:29:14,640 Speaker 1: to just say we're out. 563 00:29:14,360 --> 00:29:16,440 Speaker 2: Pint, put it under the bar, save it for a 564 00:29:16,480 --> 00:29:17,680 Speaker 2: month for us, we'll be there. 565 00:29:17,760 --> 00:29:18,920 Speaker 1: I don't think that's going to happen. 566 00:29:19,600 --> 00:29:23,080 Speaker 2: If you want to correct us after we get something 567 00:29:23,200 --> 00:29:26,280 Speaker 2: flagrantly wrong, like we did with the whole plainy thing, 568 00:29:27,040 --> 00:29:30,240 Speaker 2: you can tweet to us at sysk podcast. You can 569 00:29:30,240 --> 00:29:32,560 Speaker 2: post it on Facebook dot com slash stuff you should know. 570 00:29:32,840 --> 00:29:35,320 Speaker 2: You can send us an email to Stuff Podcast at 571 00:29:35,320 --> 00:29:38,400 Speaker 2: HowStuffWorks dot com, and as always, joined us at our 572 00:29:38,400 --> 00:29:44,240 Speaker 2: home on the web, Stuff Youshould Know dot Com. Stuff 573 00:29:44,240 --> 00:29:46,240 Speaker 2: you Should Know is a production of iHeartRadio. 574 00:29:46,720 --> 00:29:49,920 Speaker 1: For more podcasts my heart Radio, visit the iHeartRadio app, 575 00:29:50,120 --> 00:29:53,040 Speaker 1: Apple Podcasts, or wherever you listen to your favorite shows.