1 00:00:03,040 --> 00:00:05,880 Speaker 1: Welcome to stuff to blow your mind. From how Stop 2 00:00:05,920 --> 00:00:26,960 Speaker 1: Works by Carlo ground Control to Major Tom Ground Control 3 00:00:27,160 --> 00:00:31,240 Speaker 1: to Major Tom, take your protein pills and put your 4 00:00:31,280 --> 00:00:37,040 Speaker 1: helmet on ground control to Major Tom five commencing count 5 00:00:37,360 --> 00:00:41,400 Speaker 1: of engines on three three check ignitions, Who to make 6 00:00:41,440 --> 00:00:57,240 Speaker 1: God's Love people one lift off. Hey, welcome to stuff 7 00:00:57,280 --> 00:00:58,880 Speaker 1: to blow your mind. My name is Robert Lamb and 8 00:00:58,960 --> 00:01:01,280 Speaker 1: I am Christians. Say so you may have gotten the 9 00:01:01,320 --> 00:01:03,800 Speaker 1: idea from our little intro there that that was our 10 00:01:03,840 --> 00:01:07,160 Speaker 1: homage to David Bowie. We're recording this two days after 11 00:01:07,200 --> 00:01:08,840 Speaker 1: he passed away, so we thought it would be fun 12 00:01:08,880 --> 00:01:11,959 Speaker 1: to do a little space oddity routine since we're gonna 13 00:01:11,959 --> 00:01:17,160 Speaker 1: be talking about space mirrors. So how how do these work? 14 00:01:17,600 --> 00:01:19,920 Speaker 1: Why are we putting mirrors in outer space? It's not 15 00:01:19,959 --> 00:01:22,720 Speaker 1: to look at ourselves, is not to look at planet Earth? Right, 16 00:01:22,760 --> 00:01:26,160 Speaker 1: There's many reasons behind this. Yeah, though I will say 17 00:01:26,160 --> 00:01:28,760 Speaker 1: that I did run across at least one scenario in 18 00:01:28,800 --> 00:01:31,160 Speaker 1: which they were talking about using mirrors and space as 19 00:01:31,200 --> 00:01:35,759 Speaker 1: a means to to to better analyze conditions on the Earth. 20 00:01:35,959 --> 00:01:37,600 Speaker 1: Is that right? Yeah? But for the most part, yeah, 21 00:01:37,600 --> 00:01:39,280 Speaker 1: we're not putting them up there, but they're not putting 22 00:01:39,720 --> 00:01:42,240 Speaker 1: haunted mirrors up in space, right, not like the mirror 23 00:01:42,280 --> 00:01:45,640 Speaker 1: from Oculus. Not yet. That's the sequel. I just came 24 00:01:45,680 --> 00:01:48,640 Speaker 1: up with it, right there, Oculus to space mirror. The 25 00:01:48,960 --> 00:01:52,080 Speaker 1: Oculus mirror, as you is used in a telescope. It 26 00:01:52,080 --> 00:01:55,200 Speaker 1: gets put in the Hubble Yeah, Hubble space telescope or 27 00:01:55,200 --> 00:01:58,880 Speaker 1: the James Webb Yeah, exactly. And it's worth mentioning the 28 00:01:58,920 --> 00:02:02,560 Speaker 1: haunted mirrors because haunted mirrors, I feel, capture a lot 29 00:02:02,600 --> 00:02:06,320 Speaker 1: of the mystique of the mirror itself. Even if you 30 00:02:06,400 --> 00:02:09,080 Speaker 1: sort of know how a mirror works, uh, there's still 31 00:02:09,120 --> 00:02:12,640 Speaker 1: something kind of magical and uncanny about it. And therefore 32 00:02:12,680 --> 00:02:15,440 Speaker 1: the idea of putting them in space, putting them out there, 33 00:02:15,919 --> 00:02:20,560 Speaker 1: uh in orbit, uh, is inherently kind of weird and 34 00:02:20,760 --> 00:02:25,840 Speaker 1: mystical feeling. Yeah, potential event horizons scenario. Ye. So before 35 00:02:25,840 --> 00:02:27,679 Speaker 1: we dive into the mirror stuff, I just want to 36 00:02:27,720 --> 00:02:29,959 Speaker 1: remind everybody you know, Stuff to Blow your Mind is 37 00:02:29,960 --> 00:02:32,720 Speaker 1: a podcast, and most of you know us from listening 38 00:02:32,760 --> 00:02:34,880 Speaker 1: to the show, and thank you for doing so. But 39 00:02:35,080 --> 00:02:36,880 Speaker 1: we do a bunch of other stuff too, and we 40 00:02:37,080 --> 00:02:39,840 Speaker 1: love if you check that out. So we've got videos 41 00:02:39,840 --> 00:02:42,880 Speaker 1: that we produce uh and star in. We've got articles 42 00:02:42,919 --> 00:02:45,160 Speaker 1: that we write, and the best way that you can 43 00:02:45,240 --> 00:02:47,520 Speaker 1: find most of that stuff is by visiting us at 44 00:02:47,560 --> 00:02:49,880 Speaker 1: stuff to blow your Mind dot com. That is the 45 00:02:50,000 --> 00:02:54,160 Speaker 1: landing site for everything that Joe, Robert and I are producing. Indeed, 46 00:02:54,160 --> 00:02:56,520 Speaker 1: and hey, we don't we don't care how you listen 47 00:02:56,520 --> 00:02:58,919 Speaker 1: to us. There are various different ways to listen to 48 00:02:59,000 --> 00:03:01,160 Speaker 1: a podcast these days. But if you want to help 49 00:03:01,200 --> 00:03:06,519 Speaker 1: us out, whatever system you use, be it iTunes or Google, Spotify, 50 00:03:06,720 --> 00:03:09,320 Speaker 1: you name it, uh, give us a little love there. 51 00:03:09,360 --> 00:03:11,640 Speaker 1: If they have a way to review us, give us 52 00:03:11,639 --> 00:03:14,280 Speaker 1: some stars. Do that. It helps us out, helps out 53 00:03:14,280 --> 00:03:17,760 Speaker 1: the algorithm, help support the show, and we loved here. 54 00:03:17,960 --> 00:03:20,000 Speaker 1: Not just if you've done those, but we love to 55 00:03:20,040 --> 00:03:23,200 Speaker 1: hear your reactions to the episodes or maybe some ideas 56 00:03:23,240 --> 00:03:25,760 Speaker 1: that you've had, or or facts that we maybe didn't 57 00:03:25,760 --> 00:03:28,160 Speaker 1: find in our research. So you can always reach out 58 00:03:28,200 --> 00:03:29,960 Speaker 1: to us on social media and let us know about 59 00:03:29,960 --> 00:03:32,639 Speaker 1: those things. We're on Facebook, we're on Twitter, we're on Tumblr. 60 00:03:32,680 --> 00:03:35,440 Speaker 1: We are blow the Mind on those platforms. We also 61 00:03:35,480 --> 00:03:39,720 Speaker 1: do periscopes every Friday at noon Eastern Standard time, So 62 00:03:39,760 --> 00:03:41,280 Speaker 1: if you want to hang out with us for twenty 63 00:03:41,280 --> 00:03:43,320 Speaker 1: minutes or so and talk about what's going on with 64 00:03:43,360 --> 00:03:45,480 Speaker 1: the show this week, what we're working on for articles 65 00:03:45,520 --> 00:03:48,120 Speaker 1: or whatever. Uh, that's that's the best way to do that, 66 00:03:48,200 --> 00:03:51,440 Speaker 1: to talk to us directly, throw us those hearts on periscope, 67 00:03:52,680 --> 00:03:55,600 Speaker 1: all right, you know. But as we get going here, Uh, 68 00:03:55,680 --> 00:04:00,720 Speaker 1: this is not an episode that deals exclusively with telescope. Uh. 69 00:04:01,000 --> 00:04:03,760 Speaker 1: That is a topic that deserves its own episode or 70 00:04:03,800 --> 00:04:06,920 Speaker 1: a couple of episodes to explore some of this amazing 71 00:04:07,920 --> 00:04:12,080 Speaker 1: terrestrial and orbital observatories that we've rolled out over the years. 72 00:04:12,120 --> 00:04:15,280 Speaker 1: But in discussing the role of mirrors in space, we 73 00:04:15,400 --> 00:04:19,039 Speaker 1: have to talk at least briefly about their role in 74 00:04:19,160 --> 00:04:24,400 Speaker 1: the telescope. Yeah. So, the basic gist of reflector telescopes, 75 00:04:24,400 --> 00:04:28,039 Speaker 1: which is the kind of telescope that uses mirrors instead 76 00:04:28,040 --> 00:04:32,520 Speaker 1: of lenses, is that the mirrors collect light within them 77 00:04:32,560 --> 00:04:35,559 Speaker 1: from a distant object, bring that light to a point 78 00:04:35,680 --> 00:04:37,520 Speaker 1: or to a focus, and then through an I P 79 00:04:37,720 --> 00:04:40,720 Speaker 1: S lens, take that focus and magnify it for our 80 00:04:40,839 --> 00:04:44,720 Speaker 1: human retina, right, so we can see through. Its ability 81 00:04:44,760 --> 00:04:48,000 Speaker 1: to collect light is directly related to the diameter of 82 00:04:48,000 --> 00:04:51,479 Speaker 1: the mirror being used to gather the light. Okay, and 83 00:04:51,600 --> 00:04:55,040 Speaker 1: Isaac Newton was the first one to develop this idea 84 00:04:55,200 --> 00:04:58,720 Speaker 1: for the reflector telescope back in sixteen eighty. He used 85 00:04:58,760 --> 00:05:01,920 Speaker 1: a curved metal mirror to collect the light and reflect 86 00:05:01,960 --> 00:05:05,880 Speaker 1: it into focus. Then in seventy two, John Hadley developed 87 00:05:05,880 --> 00:05:09,880 Speaker 1: a design using parabolic mirrors, and these are relatively still 88 00:05:09,880 --> 00:05:15,160 Speaker 1: in popular use today. The disadvantage of reflector telescopes, though, 89 00:05:15,240 --> 00:05:18,239 Speaker 1: is that you have to clean and realign these mirrors, 90 00:05:18,400 --> 00:05:20,760 Speaker 1: and that actually comes into play with the Hubble telescope. 91 00:05:21,400 --> 00:05:24,800 Speaker 1: Oh yeah, because there's some some flaw to it. But 92 00:05:25,080 --> 00:05:28,159 Speaker 1: reflectors are also subject to some light loss as well. 93 00:05:28,720 --> 00:05:31,200 Speaker 1: So Hubble we mentioned it before. We thought we joked 94 00:05:31,200 --> 00:05:34,600 Speaker 1: about putting the oculus mirror inside of it. Uh, it's 95 00:05:34,680 --> 00:05:38,320 Speaker 1: a cassa grain, that's the title of it. Reflector telescope 96 00:05:38,440 --> 00:05:41,440 Speaker 1: where the light enters through a small opening and bounces 97 00:05:41,480 --> 00:05:45,080 Speaker 1: off primary and secondary mirrors inside of it. It's sort 98 00:05:45,080 --> 00:05:47,159 Speaker 1: of in like a w formation, is how the light 99 00:05:47,240 --> 00:05:50,680 Speaker 1: is bouncing around in there, and there's other smaller mirrors 100 00:05:50,720 --> 00:05:53,840 Speaker 1: inside to distribute the light to the eventual instruments that 101 00:05:53,880 --> 00:05:57,239 Speaker 1: then broadcast them back to us. The mirrors are made, 102 00:05:57,640 --> 00:06:00,120 Speaker 1: you know, different from how Newton made his with just 103 00:06:00,200 --> 00:06:03,640 Speaker 1: a sheet of metal. Uh. They are glass coated with 104 00:06:03,760 --> 00:06:08,640 Speaker 1: layers of pure aluminum and magnesium fluoride. But the hubble 105 00:06:08,920 --> 00:06:11,679 Speaker 1: has a couple of flaws. It had a flaw in 106 00:06:11,680 --> 00:06:14,039 Speaker 1: in its mirrors UM, and so what they used to 107 00:06:14,080 --> 00:06:16,680 Speaker 1: do is they had several small mirrors inside of it 108 00:06:16,960 --> 00:06:20,840 Speaker 1: that were called co star UH. And the idea was 109 00:06:20,920 --> 00:06:24,000 Speaker 1: that they would intercept the beam from the primary mirror 110 00:06:24,040 --> 00:06:26,520 Speaker 1: that had a flaw, refocus it, and then make it 111 00:06:26,560 --> 00:06:29,520 Speaker 1: so that you know, is able to be uh parsed out. 112 00:06:30,200 --> 00:06:32,880 Speaker 1: But today the instruments that are built into it have 113 00:06:33,000 --> 00:06:36,880 Speaker 1: corrective optics that compensate for that flaw, so they don't 114 00:06:36,920 --> 00:06:39,719 Speaker 1: need the co Star mirrors anymore. And then the big 115 00:06:39,760 --> 00:06:41,240 Speaker 1: one that I'm sure a lot of you have heard 116 00:06:41,279 --> 00:06:45,159 Speaker 1: about is James Webb Telescope, which is coming up. It 117 00:06:45,200 --> 00:06:48,480 Speaker 1: is an even bigger mirror that is twenty ft in diameter. 118 00:06:48,560 --> 00:06:51,840 Speaker 1: In fact, we just sent a team here uh from 119 00:06:51,880 --> 00:06:55,120 Speaker 1: How Stuff Works up to the NASA Observatory there where 120 00:06:55,120 --> 00:06:57,440 Speaker 1: they're working on the James Web telescope, and a couple 121 00:06:57,480 --> 00:06:59,800 Speaker 1: of videos were produced by our team, primarily led by 122 00:06:59,800 --> 00:07:03,680 Speaker 1: all Fry from the History podcast. But I'm looking forward 123 00:07:03,720 --> 00:07:06,080 Speaker 1: to seeing that stuff because they've they apparently got real 124 00:07:06,160 --> 00:07:08,720 Speaker 1: up close and personal with the James Webb telescope and 125 00:07:08,760 --> 00:07:11,360 Speaker 1: the production and maybe even the Haunted mirror. That's you 126 00:07:11,440 --> 00:07:14,000 Speaker 1: gotta ask Hollie if that Oculus mirror made its way 127 00:07:14,000 --> 00:07:17,200 Speaker 1: in there. Um. There's also some considerations for something that's 128 00:07:17,200 --> 00:07:20,440 Speaker 1: called a liquid mirror telescope that could potentially be mounted 129 00:07:20,480 --> 00:07:23,640 Speaker 1: on the Moon. It would be between sixties six and 130 00:07:23,800 --> 00:07:26,760 Speaker 1: three hundred and twenty eight feet long, which would collect 131 00:07:26,840 --> 00:07:29,920 Speaker 1: a thousand and seven hundred and thirty six times more 132 00:07:30,040 --> 00:07:33,600 Speaker 1: light than the Hubble telescope does. Now, so that's just 133 00:07:33,680 --> 00:07:37,760 Speaker 1: my brief primer here on telescopes and their role. And yes, 134 00:07:37,840 --> 00:07:41,240 Speaker 1: we have space we have mirrors in space four telescopes, 135 00:07:41,600 --> 00:07:44,239 Speaker 1: but we're going to talk a little bit beyond using 136 00:07:44,280 --> 00:07:47,320 Speaker 1: them to see far and look into other ways that 137 00:07:47,360 --> 00:07:50,000 Speaker 1: you could use them potentially as weapons or just to 138 00:07:50,680 --> 00:07:54,320 Speaker 1: make people happier. Apparently. Yeah, and you know it's also 139 00:07:54,320 --> 00:07:58,280 Speaker 1: worth noting that, um, you know, especially with terrestrial observatories, 140 00:07:58,760 --> 00:08:02,040 Speaker 1: you have mirrors that are solid one piece, and then 141 00:08:02,080 --> 00:08:05,120 Speaker 1: you also have mirrors that are composed of of of 142 00:08:05,320 --> 00:08:10,200 Speaker 1: of various segments that all come together. Um, you mentioned 143 00:08:10,200 --> 00:08:12,880 Speaker 1: the liquid mirror, and I have to to throw in 144 00:08:12,920 --> 00:08:17,080 Speaker 1: about a new proposition. This just came out. This made 145 00:08:17,080 --> 00:08:21,440 Speaker 1: a made the rounds from NASA's Jet Propulsion Laboratory, good 146 00:08:21,440 --> 00:08:26,840 Speaker 1: old JPL. Yeah, two thousand fifteen orbiting rainbows. So and 147 00:08:27,040 --> 00:08:28,480 Speaker 1: you already know it's gonna be good at the title 148 00:08:28,520 --> 00:08:31,520 Speaker 1: like that. But this would be a reflective cloud. This 149 00:08:31,560 --> 00:08:35,199 Speaker 1: is theoretical. This would be a reflective cloud of glitter 150 00:08:35,360 --> 00:08:38,600 Speaker 1: light grains that are just floating there in space, and 151 00:08:38,600 --> 00:08:42,520 Speaker 1: they're trapped and manipulated by multiple laser beans. So you 152 00:08:42,520 --> 00:08:45,480 Speaker 1: don't have to worry about structure or backing material. You 153 00:08:45,640 --> 00:08:49,080 Speaker 1: have to worry about, you know, unfurling the sails, et cetera. 154 00:08:49,480 --> 00:08:52,040 Speaker 1: The pressure of the laser light coming in from different 155 00:08:52,080 --> 00:08:55,840 Speaker 1: directions ship would shape the cloud and push the small 156 00:08:55,880 --> 00:09:00,160 Speaker 1: grains to a line in the same direction. So kind 157 00:09:00,200 --> 00:09:04,600 Speaker 1: of a nano mirror cloud. Yeah, that sounds interesting, curious. 158 00:09:04,840 --> 00:09:06,559 Speaker 1: I mean, it sounds like it would be a long 159 00:09:06,640 --> 00:09:09,280 Speaker 1: way off, given given how long the work on James 160 00:09:09,280 --> 00:09:11,560 Speaker 1: Webb has been going on. Yeah, but it's there's certainly 161 00:09:11,760 --> 00:09:15,560 Speaker 1: an innovation that is worth thinking about in terms of 162 00:09:15,600 --> 00:09:19,280 Speaker 1: these various applications that we're going to discuss here, some 163 00:09:19,400 --> 00:09:22,560 Speaker 1: of which you know, are a little more feasible than others. Um, 164 00:09:22,840 --> 00:09:27,000 Speaker 1: we should also mention solar sales because that that's an 165 00:09:27,040 --> 00:09:30,959 Speaker 1: important aspect of the use of mirrors in space as well, 166 00:09:31,080 --> 00:09:34,560 Speaker 1: or at least mirrord surfaces. So the concept itself goes 167 00:09:34,600 --> 00:09:38,640 Speaker 1: back to the sixteenth century UH astronomer mathematician Johannes Kepler 168 00:09:39,200 --> 00:09:42,360 Speaker 1: UH noticed that comet tails always point away from the sun, 169 00:09:42,400 --> 00:09:46,640 Speaker 1: implying that sunlight itself was pushing them around like they 170 00:09:46,679 --> 00:09:50,560 Speaker 1: were little wind solar breeze. Yeah, and there is there 171 00:09:50,640 --> 00:09:53,680 Speaker 1: is a solar win We know that now. Um. We 172 00:09:53,679 --> 00:09:55,440 Speaker 1: we know now that sunlight is a little more than 173 00:09:55,480 --> 00:09:58,360 Speaker 1: a stream of photons, tiny particles of light, and they 174 00:09:58,400 --> 00:10:02,280 Speaker 1: don't possess mass, but they do boast a linear momentum, 175 00:10:02,320 --> 00:10:05,240 Speaker 1: and when they bounce off a reflective surface, they push 176 00:10:05,360 --> 00:10:08,559 Speaker 1: against that surface. And UH, and then this has been 177 00:10:08,720 --> 00:10:12,240 Speaker 1: demonstrated because of the solar sales. UH. The Mariner Tin 178 00:10:12,320 --> 00:10:15,800 Speaker 1: probe successfully demonstrated the technology in seventy four when Nassy 179 00:10:15,920 --> 00:10:20,959 Speaker 1: used the probe solar arrays UH as an impromptu solar sale. UH. 180 00:10:21,000 --> 00:10:25,200 Speaker 1: Subsequent American, Russian, Indian, and Japanese missions have also uh 181 00:10:25,520 --> 00:10:29,920 Speaker 1: further proven the technology's feasibility. But we really haven't taken 182 00:10:29,960 --> 00:10:33,880 Speaker 1: the solar sale concept and uh and and fleshed it 183 00:10:33,920 --> 00:10:37,240 Speaker 1: out in a more uh you know, remarkable way. We 184 00:10:37,280 --> 00:10:41,080 Speaker 1: haven't created like full full on solar sale vessels. Yeah. 185 00:10:41,080 --> 00:10:44,240 Speaker 1: The idea is that like, eventually, the continuous force of 186 00:10:44,280 --> 00:10:48,720 Speaker 1: all those sunlight particles would propel a spacecraft potentially five 187 00:10:48,800 --> 00:10:52,560 Speaker 1: times faster than traditional rockets. Yeah, and then if you 188 00:10:52,559 --> 00:10:56,520 Speaker 1: could also throw in varying uh theoretical means of boosting 189 00:10:56,520 --> 00:10:59,760 Speaker 1: them with lasers, so you point the laser beams at 190 00:11:00,080 --> 00:11:02,559 Speaker 1: the sale and add a little bit of artificial win 191 00:11:03,120 --> 00:11:06,240 Speaker 1: to those solar sales. So this sounds good, right. We're 192 00:11:06,320 --> 00:11:09,040 Speaker 1: using mirrors in space as a as a as a 193 00:11:09,120 --> 00:11:11,720 Speaker 1: real means and as a and as a near future 194 00:11:11,760 --> 00:11:17,160 Speaker 1: means to gaze at the cosmos, and propulsion as a 195 00:11:17,200 --> 00:11:20,200 Speaker 1: means to move through it. But what else can we do? Well, 196 00:11:20,240 --> 00:11:23,200 Speaker 1: apparently we can hurt each other, which is one of 197 00:11:23,200 --> 00:11:25,760 Speaker 1: our favorite ways to examine space. Right. We love talking 198 00:11:25,760 --> 00:11:28,319 Speaker 1: about space weapons here and stuff to blow your mind. Yeah, 199 00:11:28,360 --> 00:11:30,280 Speaker 1: and we've seen time and time again that if you want, 200 00:11:30,960 --> 00:11:34,760 Speaker 1: you want any kind of a science program funded. If 201 00:11:34,800 --> 00:11:38,240 Speaker 1: it has a weapon aspect to it, then all the better. 202 00:11:38,320 --> 00:11:41,720 Speaker 1: That's that's how human civilization gets excited about science. And 203 00:11:41,760 --> 00:11:45,839 Speaker 1: that's exactly the case with something called the sun gun. Uh. 204 00:11:45,880 --> 00:11:50,560 Speaker 1: And this comes from a Life magazine article. Basically, there 205 00:11:50,600 --> 00:11:54,160 Speaker 1: were U. S. Army technical experts that were in Germany 206 00:11:54,520 --> 00:11:57,280 Speaker 1: and they came across notes for the sun gun. And 207 00:11:57,400 --> 00:12:02,160 Speaker 1: the concept was by a German rocket scientists named Herman 208 00:12:02,280 --> 00:12:06,520 Speaker 1: O Berth, and he pitched this idea in ninete. Now, 209 00:12:06,880 --> 00:12:10,079 Speaker 1: his idea for this was totally peaceful, right. He wanted 210 00:12:10,120 --> 00:12:13,720 Speaker 1: to use it to do things like illuminate ports or 211 00:12:14,000 --> 00:12:17,240 Speaker 1: thaw out frozen rivers. Uh. He also thought that you 212 00:12:17,280 --> 00:12:19,480 Speaker 1: could potentially use this as a I mean he was 213 00:12:19,480 --> 00:12:23,000 Speaker 1: thinking way ahead as a refueling station for spaceships. So 214 00:12:23,040 --> 00:12:26,520 Speaker 1: there were some sort of sci fi ash ideas here. Yeah. Oh, 215 00:12:26,600 --> 00:12:28,520 Speaker 1: Berth is one of those names you see thrown around 216 00:12:28,520 --> 00:12:31,320 Speaker 1: at times with Verna von Braun. He was very much 217 00:12:31,360 --> 00:12:34,320 Speaker 1: involved with the German rocket program in the creation of 218 00:12:34,360 --> 00:12:39,760 Speaker 1: the V two. Yeah exactly. But you know, in this situation, 219 00:12:39,840 --> 00:12:41,880 Speaker 1: ober comes up with this idea and the nazis going, 220 00:12:41,960 --> 00:12:45,000 Speaker 1: you know, what, what if we could use that to 221 00:12:45,080 --> 00:12:48,120 Speaker 1: take the rays and burn our enemy cities and boil 222 00:12:48,240 --> 00:12:52,120 Speaker 1: the ocean. Yeah. I mean it comes down again to 223 00:12:52,200 --> 00:12:55,960 Speaker 1: this case where you have you have scientists who who 224 00:12:56,000 --> 00:12:58,160 Speaker 1: have this in their areas of expertise, they have their 225 00:12:58,200 --> 00:13:03,560 Speaker 1: research they cared dearly about, but you're ultimately you're you're 226 00:13:03,600 --> 00:13:07,719 Speaker 1: you're ultimately having to deal with a warlike and dogmatic 227 00:13:08,000 --> 00:13:10,320 Speaker 1: force at the top of the chain, and you have 228 00:13:10,320 --> 00:13:13,240 Speaker 1: to appeal to those masters. And it's like that nowadays. 229 00:13:13,360 --> 00:13:15,040 Speaker 1: Like you know, a lot of the scientists that I 230 00:13:15,080 --> 00:13:16,760 Speaker 1: know who get funding for their work get it from 231 00:13:16,760 --> 00:13:18,720 Speaker 1: the d O D. I mean, one of my closest 232 00:13:18,760 --> 00:13:21,679 Speaker 1: friends used to do work out of M I T. 233 00:13:22,280 --> 00:13:25,240 Speaker 1: And he always reminds me that the GPS was first 234 00:13:25,280 --> 00:13:27,360 Speaker 1: developed with do O D money. And I'm talking about 235 00:13:27,400 --> 00:13:32,040 Speaker 1: the Department of Defense in the United States for international listeners. Yeah, 236 00:13:32,040 --> 00:13:34,439 Speaker 1: So the scenario more or less remains the same. It's 237 00:13:34,440 --> 00:13:39,200 Speaker 1: easier to uh to cast a nefarious I obviously on 238 00:13:39,200 --> 00:13:43,319 Speaker 1: on a scientific experiments going on in scientific endeavors going 239 00:13:43,320 --> 00:13:46,679 Speaker 1: on during the Third Reich and under the Third Reich. 240 00:13:46,760 --> 00:13:48,880 Speaker 1: But it has always been the case. And if you 241 00:13:48,880 --> 00:13:52,280 Speaker 1: have a big project, war is the way it gets green. Well, 242 00:13:52,640 --> 00:13:55,360 Speaker 1: there don't seem to be any surviving schematics to actually 243 00:13:55,400 --> 00:13:57,880 Speaker 1: show how they're going to build this mirror sun gun. 244 00:13:58,240 --> 00:14:01,680 Speaker 1: But the Life magazine article has like drawings and illustrations 245 00:14:01,679 --> 00:14:05,400 Speaker 1: in it, which I'm assuming that they came with the 246 00:14:05,520 --> 00:14:08,400 Speaker 1: notes that were uncovered by these technical experts unless they 247 00:14:08,440 --> 00:14:12,000 Speaker 1: were drawn for the article. And those illustrations are are available, 248 00:14:12,040 --> 00:14:14,240 Speaker 1: you can find them, i think, on on Google and 249 00:14:14,240 --> 00:14:18,720 Speaker 1: and they're wonderful. They're just fabulous retro futurist visions of 250 00:14:18,720 --> 00:14:21,960 Speaker 1: what life space could consist of. Um, they didn't really 251 00:14:21,960 --> 00:14:24,360 Speaker 1: have a plan either on how they were going to 252 00:14:24,960 --> 00:14:27,880 Speaker 1: have a rocket actually get the get the sun gun 253 00:14:28,080 --> 00:14:31,040 Speaker 1: up into space, but the idea here was that it 254 00:14:31,040 --> 00:14:34,240 Speaker 1: would be pre assembled before it even got up there. Uh. 255 00:14:34,280 --> 00:14:37,320 Speaker 1: And in the same article that hypothesized that at the 256 00:14:37,360 --> 00:14:39,840 Speaker 1: distance that the Germans were planning to set up the mirror, 257 00:14:40,040 --> 00:14:43,880 Speaker 1: which was five thousand, one hundred miles up, the image 258 00:14:43,880 --> 00:14:46,200 Speaker 1: it would cast on Earth once they actually crunched the 259 00:14:46,240 --> 00:14:49,640 Speaker 1: math would be forty miles in diameter and it would 260 00:14:49,680 --> 00:14:52,280 Speaker 1: not be hot enough to do any damage, so there 261 00:14:52,320 --> 00:14:55,920 Speaker 1: would be like a forty mile uh sunburst that I 262 00:14:55,920 --> 00:14:57,360 Speaker 1: don't know, maybe it would give you a bit of 263 00:14:57,400 --> 00:15:00,040 Speaker 1: a tan. Yeah, that's uh, And that's one of the 264 00:15:00,160 --> 00:15:02,440 Speaker 1: um the cool things about that Life article is they 265 00:15:02,640 --> 00:15:05,920 Speaker 1: just immediately tear down the idea. Um. Of course, it's 266 00:15:05,960 --> 00:15:09,600 Speaker 1: also worth noting that that the German scientists themselves, they 267 00:15:09,680 --> 00:15:12,760 Speaker 1: were saying that this thing, this would be like years anyway, 268 00:15:12,840 --> 00:15:16,200 Speaker 1: so they weren't saying we can do this next year, guys. Um. 269 00:15:16,240 --> 00:15:19,720 Speaker 1: But yeah, it seems like if you try to extrapolate 270 00:15:20,440 --> 00:15:23,480 Speaker 1: over it's work into a weapon, as as some of 271 00:15:23,480 --> 00:15:26,240 Speaker 1: the Nazi individuals may have seemed to have done, it's 272 00:15:26,240 --> 00:15:31,920 Speaker 1: not gonna work, but as a means to slightly heat areas, right, Yeah, yeah, 273 00:15:32,000 --> 00:15:34,440 Speaker 1: And I'm curious, like, especially given what we're going to 274 00:15:34,480 --> 00:15:37,200 Speaker 1: talk about Russian applications for this as well. But you know, 275 00:15:37,240 --> 00:15:39,240 Speaker 1: maybe they could thaw or ever, but at the very 276 00:15:39,320 --> 00:15:44,240 Speaker 1: least they could literally shed some light on the situation. So, Okay, 277 00:15:44,320 --> 00:15:48,320 Speaker 1: here's the basic breakdown of ober'st thing. Even if we 278 00:15:48,400 --> 00:15:51,160 Speaker 1: don't have access to as sschematics. The idea is that 279 00:15:51,200 --> 00:15:54,800 Speaker 1: the mirror would be a concave disk that's one mile 280 00:15:54,880 --> 00:15:56,880 Speaker 1: in diameter. So we keep coming back to this, the 281 00:15:56,880 --> 00:16:00,200 Speaker 1: importance of how big the diameter is mirror. The crew 282 00:16:00,280 --> 00:16:04,280 Speaker 1: would live inside the mirror and they would breathe air 283 00:16:04,480 --> 00:16:08,400 Speaker 1: produced by thousands of pumpkin plants. I loved that. And 284 00:16:08,440 --> 00:16:10,200 Speaker 1: even in some of the drawings they sort of show 285 00:16:10,240 --> 00:16:12,920 Speaker 1: where these pumpkin plants would be placed that they would 286 00:16:12,920 --> 00:16:15,600 Speaker 1: be generating oxygen for the car. Wonder why, I guess 287 00:16:15,600 --> 00:16:17,440 Speaker 1: because of the buyer, if they feel like that would 288 00:16:17,440 --> 00:16:20,640 Speaker 1: be a good support structure for us. Yeah, it wasn't clear. 289 00:16:20,880 --> 00:16:26,120 Speaker 1: It wasn't clear, and you know, unfortunately, oh Birth's actual 290 00:16:26,200 --> 00:16:28,680 Speaker 1: reasoning for it was kind of lost to time. There 291 00:16:28,760 --> 00:16:32,560 Speaker 1: was also some weird stuff because they the design was 292 00:16:32,760 --> 00:16:36,720 Speaker 1: pitched to have centrifugial rotation and mimic gravity, kind of 293 00:16:36,720 --> 00:16:39,320 Speaker 1: like we're familiar with now from two thousand one of 294 00:16:39,360 --> 00:16:43,560 Speaker 1: Space that classic scene. Yeah. Um, but they also would 295 00:16:43,600 --> 00:16:46,320 Speaker 1: wear magnet shoes that would allow them to stick to 296 00:16:46,360 --> 00:16:49,440 Speaker 1: the floors and walls at the same time to compensate 297 00:16:49,480 --> 00:16:51,560 Speaker 1: for the gravity loss. So maybe it's sort of like 298 00:16:51,800 --> 00:16:53,800 Speaker 1: I'm I'm thinking of that scene in Star Trek the 299 00:16:53,800 --> 00:16:56,640 Speaker 1: Next Generation where they put on those like magnet boots 300 00:16:56,640 --> 00:16:58,560 Speaker 1: and walk along in the hull of the Star Trek 301 00:16:58,640 --> 00:17:02,480 Speaker 1: Enterprise to the star Reck enterprise, the spaceship enterprise. Uh. 302 00:17:02,520 --> 00:17:04,320 Speaker 1: And so the idea here is that there would be 303 00:17:04,320 --> 00:17:07,440 Speaker 1: tiny little rocket motors that are attached to the mirror 304 00:17:07,600 --> 00:17:09,760 Speaker 1: and they would fire those off to control where it 305 00:17:09,800 --> 00:17:12,119 Speaker 1: was turned, so they could aim the light at Earth. 306 00:17:13,200 --> 00:17:16,280 Speaker 1: But after World War Two, you know, the Nazis were 307 00:17:16,280 --> 00:17:19,400 Speaker 1: done for in terms of the weapon building business, and 308 00:17:19,720 --> 00:17:22,119 Speaker 1: oh Berth went to other nations to see if they 309 00:17:22,160 --> 00:17:24,439 Speaker 1: would pick up his idea for the peacetime applications. He 310 00:17:24,480 --> 00:17:27,399 Speaker 1: originally came up with him for he thought the US 311 00:17:27,760 --> 00:17:31,840 Speaker 1: could build a mirror that's three hundred miles in diameter. 312 00:17:32,040 --> 00:17:35,800 Speaker 1: That's huge, uh, to terraform the Earth. So he had 313 00:17:35,840 --> 00:17:41,080 Speaker 1: some big ideas, o Berth did. He even suggested, well, 314 00:17:41,119 --> 00:17:43,560 Speaker 1: you know it would be expensive, Yes, but why don't 315 00:17:43,560 --> 00:17:46,119 Speaker 1: we just mind all the materials from the Moon to 316 00:17:46,240 --> 00:17:48,680 Speaker 1: keep the costs down. I keep in mind, we hadn't 317 00:17:48,680 --> 00:17:50,480 Speaker 1: even been to the moon. He doesn't know what's on 318 00:17:50,520 --> 00:17:54,040 Speaker 1: the moon. But sure enough, we're gonna he pitches, Yeah, 319 00:17:54,080 --> 00:17:55,960 Speaker 1: don't worry about it. We'll just we'll make this mirror 320 00:17:55,960 --> 00:17:58,880 Speaker 1: from moonbits. See he's very much thinking a few steps 321 00:17:58,920 --> 00:18:03,000 Speaker 1: ahead of hurrent science. Yeah, I mean this concept is, 322 00:18:03,560 --> 00:18:06,240 Speaker 1: as far as I can tell, more sci fi than science. 323 00:18:06,359 --> 00:18:09,719 Speaker 1: But it was, you know, initially pitched to be developed. 324 00:18:10,240 --> 00:18:13,040 Speaker 1: You know. It's it's interesting that he was already at 325 00:18:13,040 --> 00:18:17,240 Speaker 1: this point talking about it's use for terraforming, because in 326 00:18:17,640 --> 00:18:21,240 Speaker 1: recent decades you've you've see space mirrors occasionally pop up 327 00:18:21,240 --> 00:18:27,200 Speaker 1: as a means to terraform Mars. The red planets too cold, 328 00:18:27,240 --> 00:18:29,880 Speaker 1: so you know, you just deploy fleets of orbiting reflective 329 00:18:29,920 --> 00:18:32,280 Speaker 1: balloons to collect sunlight and reflect it down on the 330 00:18:32,359 --> 00:18:37,119 Speaker 1: chili surfaces. Um that that in particular was it was 331 00:18:37,160 --> 00:18:41,360 Speaker 1: a scheme that was proposed by University of Arizona's rogol Waida, 332 00:18:41,680 --> 00:18:45,160 Speaker 1: who theorizes that such a scheme could raise the Martian 333 00:18:45,240 --> 00:18:49,320 Speaker 1: temperature in a one fifty acre patch to Earth like 334 00:18:49,560 --> 00:18:55,479 Speaker 1: levels of interesting. And likewise, you you see various theories 335 00:18:55,480 --> 00:18:57,679 Speaker 1: about how you could you could use space mirrors as 336 00:18:57,720 --> 00:19:01,240 Speaker 1: a geo engineering or plan at hacking measure here on 337 00:19:01,320 --> 00:19:06,040 Speaker 1: Earth to counteract global warming. Yeah, I've heard that as well. 338 00:19:06,240 --> 00:19:09,199 Speaker 1: But Overth already had all that uh teaming around in 339 00:19:09,240 --> 00:19:12,159 Speaker 1: that brain age. Yeah, back in the twenties, he had 340 00:19:12,200 --> 00:19:14,119 Speaker 1: the whole thing figured out. He just didn't have the 341 00:19:14,200 --> 00:19:16,840 Speaker 1: means to achieve it. I'm gonna go back to the 342 00:19:16,880 --> 00:19:20,760 Speaker 1: sun gun one more time though. Um that edition of 343 00:19:20,800 --> 00:19:23,639 Speaker 1: Life magazine in busting It, these are some of the 344 00:19:23,640 --> 00:19:26,119 Speaker 1: particulars that they laid out. They said that the German 345 00:19:26,160 --> 00:19:30,520 Speaker 1: plan for building may be proved physically impossible by a 346 00:19:30,640 --> 00:19:34,720 Speaker 1: simple axiom of optics. Uh. This is that light cannot 347 00:19:34,760 --> 00:19:37,840 Speaker 1: be brought to a sharp pointed focus with lenses or 348 00:19:37,960 --> 00:19:41,719 Speaker 1: mirrors unless it comes from a sharp pointed source. Uh. 349 00:19:41,760 --> 00:19:44,080 Speaker 1: It goes on to say that since the Sun appears 350 00:19:44,160 --> 00:19:46,359 Speaker 1: in the sky as a disk and not as a point, 351 00:19:46,720 --> 00:19:49,000 Speaker 1: the best any optical system could do would be to 352 00:19:49,040 --> 00:19:52,960 Speaker 1: produce an image of that disc. So at very short 353 00:19:53,000 --> 00:19:56,040 Speaker 1: focal length, the image is small and hot, but the 354 00:19:56,280 --> 00:20:00,440 Speaker 1: focus length is increased the image becomes progressively bigger and cooler. 355 00:20:00,520 --> 00:20:03,640 Speaker 1: So at the distances that the Germans what we're dealing with, 356 00:20:03,760 --> 00:20:06,600 Speaker 1: as you mentioned, they wouldn't be able to cast that 357 00:20:06,760 --> 00:20:10,920 Speaker 1: laser like beam of heated intensity on anything. They would 358 00:20:10,920 --> 00:20:13,879 Speaker 1: just be able to warm things up like ha ha. 359 00:20:14,119 --> 00:20:19,120 Speaker 1: Enemies enjoy slightly warmer temperatures in this general vicinity, which 360 00:20:19,119 --> 00:20:21,880 Speaker 1: actually would work out pretty well for the next next 361 00:20:21,880 --> 00:20:25,760 Speaker 1: space mirror. We're gonna talk about projects, Zin Maya. That's right. 362 00:20:25,760 --> 00:20:28,399 Speaker 1: When we come back, we're gonna discuss Soviet attempts to 363 00:20:29,000 --> 00:20:32,119 Speaker 1: cast a little light on the on the world using 364 00:20:32,280 --> 00:20:39,520 Speaker 1: space mirrors. Hey, everybody having a professional looking website. It's 365 00:20:39,520 --> 00:20:42,560 Speaker 1: just an important part of doing business or just representing 366 00:20:42,600 --> 00:20:45,640 Speaker 1: yourself in today's world. But it can be a real pain, right, 367 00:20:45,680 --> 00:20:48,600 Speaker 1: You're trying to build this professional looking thing and you 368 00:20:48,640 --> 00:20:50,959 Speaker 1: feel like you don't. You don't have the right coding 369 00:20:50,960 --> 00:20:52,920 Speaker 1: tools at your disposal, you don't have the right skill 370 00:20:53,000 --> 00:20:55,480 Speaker 1: set to make it happen. But that's where square space 371 00:20:55,760 --> 00:20:59,199 Speaker 1: comes into play. They offer you intuitive and easy to 372 00:20:59,320 --> 00:21:02,600 Speaker 1: use tools to give you that professional design look regardless 373 00:21:02,640 --> 00:21:04,520 Speaker 1: of your individual skill level. You don't have to be 374 00:21:04,560 --> 00:21:07,080 Speaker 1: a coding wizard at all, and you get a free 375 00:21:07,080 --> 00:21:09,280 Speaker 1: domain if you sign up for a year. You can 376 00:21:09,280 --> 00:21:11,840 Speaker 1: start your free trial today at square space dot com. 377 00:21:11,840 --> 00:21:13,719 Speaker 1: And when you decide to sign up for squarespace, make 378 00:21:13,720 --> 00:21:16,880 Speaker 1: sure to use the offer code mind blown to get 379 00:21:16,920 --> 00:21:20,080 Speaker 1: ten percent off your first purchase. Again, the promo code 380 00:21:20,080 --> 00:21:23,480 Speaker 1: is mind blown, the product is square Space. Go try 381 00:21:23,520 --> 00:21:25,640 Speaker 1: it out and build that website you've been dreaming off. 382 00:21:30,119 --> 00:21:33,600 Speaker 1: All right, we're back and we're talking about Project Znamia. 383 00:21:33,920 --> 00:21:37,880 Speaker 1: Znamia is Russian for banner, because essentially we're talking about 384 00:21:37,880 --> 00:21:40,840 Speaker 1: a big reflective banner in space. And this is that 385 00:21:40,960 --> 00:21:45,159 Speaker 1: this was the brainchild of the Space Regathera Consortium or 386 00:21:45,359 --> 00:21:48,600 Speaker 1: s r C, a partnership of seven Russian aerospace management 387 00:21:48,640 --> 00:21:53,640 Speaker 1: and engineering companies who proposed and ultimately got off the ground. Uh, 388 00:21:53,800 --> 00:21:59,560 Speaker 1: two different variations of this space mirror technology. And the 389 00:21:59,600 --> 00:22:02,560 Speaker 1: interesting and maybe confusing thing about this too was the 390 00:22:02,600 --> 00:22:06,200 Speaker 1: first one that went up was the Jennaia too, not 391 00:22:06,600 --> 00:22:09,280 Speaker 1: Jean Maya one. So I wonder whatever happened to the 392 00:22:09,280 --> 00:22:11,480 Speaker 1: first one, or maybe they just jumped right to two 393 00:22:11,520 --> 00:22:13,960 Speaker 1: after a prototype. Yeah, And then the second one is 394 00:22:14,400 --> 00:22:19,080 Speaker 1: Namia two point five, right, and the third proposed one 395 00:22:19,080 --> 00:22:22,080 Speaker 1: that never actually happened was going to be Namia three. Yeah. 396 00:22:22,080 --> 00:22:26,560 Speaker 1: It's sort of like an iOS operating systems that they 397 00:22:26,640 --> 00:22:29,160 Speaker 1: just kind of jumped around with the numbers there. So 398 00:22:29,240 --> 00:22:32,040 Speaker 1: the idea here is that it's a spinning space reflector, 399 00:22:32,080 --> 00:22:34,320 Speaker 1: apparently sort of similar to the sun gun. I guess 400 00:22:34,840 --> 00:22:38,080 Speaker 1: in the idea was that it would reflect a three 401 00:22:38,200 --> 00:22:42,040 Speaker 1: mile wide patch or a five kilometer wide patch of 402 00:22:42,160 --> 00:22:47,080 Speaker 1: light across a swath of pre dawn Europe. Uh. And now, 403 00:22:47,200 --> 00:22:50,280 Speaker 1: unfortunately when they tested it, the clouds obscured much of this. 404 00:22:50,359 --> 00:22:53,000 Speaker 1: But there were some observers who reported seeing a one 405 00:22:53,080 --> 00:22:56,000 Speaker 1: second flash that was as bright as a full moon, 406 00:22:56,359 --> 00:22:58,000 Speaker 1: and they were able to see this on top of 407 00:22:58,000 --> 00:23:00,600 Speaker 1: the Alps. Apparently there were astronomers knew that it was 408 00:23:00,640 --> 00:23:02,920 Speaker 1: being tested, so they were looking for it. Yeah, full 409 00:23:02,920 --> 00:23:06,920 Speaker 1: moon shows up a lot as a descriptor for how 410 00:23:06,960 --> 00:23:11,040 Speaker 1: bright this thing actually was. Yeah, which is you know, granted, 411 00:23:11,080 --> 00:23:15,080 Speaker 1: full moon level of luminosity is pretty significantly sent right, 412 00:23:15,400 --> 00:23:17,959 Speaker 1: especially for the purposes that they came up with. At 413 00:23:18,000 --> 00:23:23,480 Speaker 1: least so the scientists at the Space Regatican Sortium. Their 414 00:23:23,520 --> 00:23:28,399 Speaker 1: hope was that Zimaya two would lead to a constellation 415 00:23:28,520 --> 00:23:31,160 Speaker 1: of space mirrors that would be an orbit around Earth 416 00:23:31,440 --> 00:23:33,760 Speaker 1: and they would use these to light up cities with 417 00:23:33,880 --> 00:23:36,919 Speaker 1: up to a hundred times the full moon's brightness. So 418 00:23:36,960 --> 00:23:40,520 Speaker 1: you have multiple mirrors operating at the same time, um 419 00:23:40,560 --> 00:23:44,600 Speaker 1: combining their efforts to illuminate an area. Yeah, and they 420 00:23:44,640 --> 00:23:48,159 Speaker 1: thought that this would improve morale during the winter, and 421 00:23:48,200 --> 00:23:51,000 Speaker 1: they would they would use it just after sun set 422 00:23:51,400 --> 00:23:54,560 Speaker 1: or just before sunrise. And my first thought was that 423 00:23:54,720 --> 00:23:58,800 Speaker 1: is so Russian like that is the coming from New England, 424 00:23:58,840 --> 00:24:01,879 Speaker 1: which is is nowhere year as harshest a Russian winter. 425 00:24:02,000 --> 00:24:05,800 Speaker 1: I can understand wanting to dispel the grayness of winter. 426 00:24:06,440 --> 00:24:09,639 Speaker 1: Uh So, And I also thought about this, I wonder 427 00:24:09,680 --> 00:24:12,200 Speaker 1: what they would do to human circadian rhythms, given how 428 00:24:12,280 --> 00:24:15,359 Speaker 1: light interacts with the human eye and brain. Well, that 429 00:24:15,440 --> 00:24:18,879 Speaker 1: was I think one of the the criticisms that that 430 00:24:19,000 --> 00:24:21,000 Speaker 1: you saw is that people were saying, well, what was it? 431 00:24:21,040 --> 00:24:23,680 Speaker 1: What is this due to the human circadian rhythm, essentially 432 00:24:23,760 --> 00:24:27,000 Speaker 1: rolling out light pollution, more light pollution than uh the 433 00:24:27,200 --> 00:24:30,880 Speaker 1: urban areas are already produced producing. So how's that gonna 434 00:24:30,880 --> 00:24:34,840 Speaker 1: mess with the surrounding wildlife? Yeah. In fact, astronomers, other astronomers, 435 00:24:34,920 --> 00:24:36,399 Speaker 1: not the ones that we're working on this, we're a 436 00:24:36,400 --> 00:24:38,480 Speaker 1: little bit upset about it because they thought that it 437 00:24:38,520 --> 00:24:40,520 Speaker 1: was going to obscure their view of the universe. But 438 00:24:40,560 --> 00:24:42,960 Speaker 1: if they're looking up with the telescopes we're talking about earlier, 439 00:24:43,040 --> 00:24:45,680 Speaker 1: they're gonna be getting all kinds of reflections and problems 440 00:24:45,680 --> 00:24:49,440 Speaker 1: from the constellation of space mirrors. Um. But the other 441 00:24:49,520 --> 00:24:51,600 Speaker 1: idea that they had, and this seems like a good 442 00:24:51,640 --> 00:24:54,119 Speaker 1: one to me, is is that they could provide emergency 443 00:24:54,240 --> 00:24:57,840 Speaker 1: lighting during disasters. So if a city loses its power, 444 00:24:58,040 --> 00:25:01,040 Speaker 1: they you know, rotate the mirror is in boom, you've 445 00:25:01,080 --> 00:25:03,880 Speaker 1: got light for an evening if you have to clear out. 446 00:25:04,040 --> 00:25:07,159 Speaker 1: You know, probably given during a natural disaster. And I 447 00:25:07,200 --> 00:25:09,879 Speaker 1: guess you could imagine it being used to in a 448 00:25:09,880 --> 00:25:12,600 Speaker 1: scenario where all right, this area doesn't have power now, 449 00:25:12,680 --> 00:25:15,439 Speaker 1: or for some reason there's an energy shortage. Instead of 450 00:25:15,520 --> 00:25:18,080 Speaker 1: lighting up all the streets, you just cast the mirror 451 00:25:18,119 --> 00:25:20,520 Speaker 1: and you down and then you can provide the at 452 00:25:20,600 --> 00:25:25,719 Speaker 1: least the level of illumination necessary for driving around town. Yeah. Yeah, 453 00:25:25,840 --> 00:25:29,800 Speaker 1: uh so this was fairly successful. They thought, okay, the 454 00:25:29,960 --> 00:25:32,919 Speaker 1: one second of full moon light, that's enough for us 455 00:25:32,960 --> 00:25:35,320 Speaker 1: to call this a success. So let's try it again 456 00:25:35,640 --> 00:25:40,800 Speaker 1: with Zemmaya two point five in. Yeah, this is six 457 00:25:40,880 --> 00:25:43,679 Speaker 1: years later that set out to try it again. This 458 00:25:43,720 --> 00:25:49,000 Speaker 1: one was U and they were hoping to cast a 459 00:25:49,119 --> 00:25:52,879 Speaker 1: seven kilometer diameter bright spot. Uh that was expected to 460 00:25:52,960 --> 00:25:58,080 Speaker 1: have five to ten moon luminosity. So it's gonna be bigger, better, 461 00:25:58,560 --> 00:26:01,119 Speaker 1: And this was gonna gonna be again a first step 462 00:26:01,119 --> 00:26:04,640 Speaker 1: in establishing that constellation that we're talking about earlier constellation 463 00:26:04,720 --> 00:26:08,920 Speaker 1: of reflectors that would allow us to really dose south 464 00:26:08,960 --> 00:26:14,879 Speaker 1: the illumination. Um. The problem is that when they began 465 00:26:14,920 --> 00:26:20,080 Speaker 1: to deploy this thing, um, the the the Z two's 466 00:26:20,160 --> 00:26:24,960 Speaker 1: membrane caught on one of space station mirrors antenna and 467 00:26:25,040 --> 00:26:28,960 Speaker 1: ripped it up. So that was not a success. And 468 00:26:29,000 --> 00:26:31,280 Speaker 1: they didn't even get there their one second of full 469 00:26:31,280 --> 00:26:33,639 Speaker 1: moon brightness apparently. Yeah, and eventually they just have to 470 00:26:33,720 --> 00:26:36,200 Speaker 1: jettison in and it burns up on reentry. So that's 471 00:26:36,560 --> 00:26:39,200 Speaker 1: so despite that, they still had you know, I guess 472 00:26:39,200 --> 00:26:41,359 Speaker 1: it was already on the books, but they had proposed 473 00:26:41,400 --> 00:26:43,800 Speaker 1: in MAYA three and the idea for this was that 474 00:26:43,840 --> 00:26:46,359 Speaker 1: it would have been even larger, and its goal was 475 00:26:46,400 --> 00:26:50,760 Speaker 1: to test a new reflector concept using something called film photovoltaics. 476 00:26:51,240 --> 00:26:53,560 Speaker 1: And it was proposed to go up somewhere around two 477 00:26:53,600 --> 00:26:56,159 Speaker 1: thousand or two thousand one. As far as I can tell, 478 00:26:56,359 --> 00:27:00,639 Speaker 1: that never happened. Uh, but there's very little formation on 479 00:27:00,720 --> 00:27:02,880 Speaker 1: it actually when you go to look it up. Uh. 480 00:27:02,920 --> 00:27:06,119 Speaker 1: There is a BBC article that came out right after 481 00:27:06,200 --> 00:27:09,520 Speaker 1: two point five failed that's basically like Nan and Nan, 482 00:27:09,960 --> 00:27:13,840 Speaker 1: You're never gonna get three up. It's kind of fascinating 483 00:27:14,200 --> 00:27:16,879 Speaker 1: little piece. It read a lot more like an editorial 484 00:27:16,960 --> 00:27:20,440 Speaker 1: than it did like a science article. They're basically, uh, 485 00:27:20,840 --> 00:27:23,480 Speaker 1: speculating that you know, this thing was way too expensive, 486 00:27:23,600 --> 00:27:26,240 Speaker 1: it was beyond the resources that Russia had at the time, 487 00:27:26,440 --> 00:27:28,760 Speaker 1: and that it was a leftover from when the Soviets 488 00:27:28,760 --> 00:27:32,720 Speaker 1: had really big space aspirations. So they said, it's probably 489 00:27:32,720 --> 00:27:34,960 Speaker 1: gonna stop, and as far as I can tell, it 490 00:27:34,960 --> 00:27:38,520 Speaker 1: seems like it did. Um. But there's an interesting article 491 00:27:38,640 --> 00:27:42,880 Speaker 1: that's out there after the antenna problem happened with I'm 492 00:27:42,880 --> 00:27:45,560 Speaker 1: gonna call it Z two point five by a guy 493 00:27:45,640 --> 00:27:50,359 Speaker 1: named n. Chapawkowski, and he comes up with five different 494 00:27:50,400 --> 00:27:54,040 Speaker 1: proposals that they could have used to fix two point five, 495 00:27:54,440 --> 00:27:56,920 Speaker 1: so that three would have been more operational. And I'll 496 00:27:56,960 --> 00:27:59,320 Speaker 1: just go over these real quick. I mean, his papers 497 00:27:59,480 --> 00:28:02,760 Speaker 1: very long and academic in nature. But he talks about 498 00:28:02,880 --> 00:28:07,040 Speaker 1: using something called rational membrane unfolding technology that would leave 499 00:28:07,119 --> 00:28:10,199 Speaker 1: some of the folds free, so peripherals like the antennas 500 00:28:10,400 --> 00:28:13,840 Speaker 1: would stretch together with the rest of the mirrors to 501 00:28:13,920 --> 00:28:15,880 Speaker 1: make it so that it is less likely to rip 502 00:28:15,920 --> 00:28:19,159 Speaker 1: apart upon first deployment. Yep. Uh. The other idea he 503 00:28:19,200 --> 00:28:22,080 Speaker 1: had was to increase the spin so that the membrane 504 00:28:22,160 --> 00:28:24,639 Speaker 1: needed would have to be heavy enough to withstand the 505 00:28:24,680 --> 00:28:28,879 Speaker 1: centrifugeal forces, but light enough to unfold quickly. And his 506 00:28:28,960 --> 00:28:32,560 Speaker 1: idea was they use compressed air to rapidly unfold the memorane. 507 00:28:32,560 --> 00:28:35,560 Speaker 1: They have little bursts of compressed air cheot out uh. 508 00:28:35,600 --> 00:28:39,479 Speaker 1: And then building off of that, he adds the idea, well, 509 00:28:39,520 --> 00:28:42,000 Speaker 1: why don't we put pipes into the membrane and run 510 00:28:42,000 --> 00:28:44,960 Speaker 1: the compressed air through those. So three is really just 511 00:28:45,040 --> 00:28:47,400 Speaker 1: kind of a two point five if we're sticking with 512 00:28:47,480 --> 00:28:50,520 Speaker 1: the right of the note numbering uh. And then this 513 00:28:50,640 --> 00:28:53,800 Speaker 1: fourth idea was you would have a compact packing of 514 00:28:53,800 --> 00:28:57,360 Speaker 1: the membrane. It would unpack like an accordion in outer space, 515 00:28:57,360 --> 00:28:59,640 Speaker 1: So it would go up all folded together, and then 516 00:28:59,640 --> 00:29:02,479 Speaker 1: it would come out like an accordion. And this this 517 00:29:02,560 --> 00:29:04,880 Speaker 1: led to his fifth idea, which is another similar thing, 518 00:29:04,880 --> 00:29:07,600 Speaker 1: but the bands of the membrane would unfold in a 519 00:29:07,680 --> 00:29:13,240 Speaker 1: concertina fashion. Okay, so I'm imagining essentially a big, vaguely 520 00:29:13,280 --> 00:29:16,640 Speaker 1: accordion shaped reflective space balloon. Yeah, I mean, I think 521 00:29:17,320 --> 00:29:19,600 Speaker 1: you know the conclusion of his article is basically like, 522 00:29:19,640 --> 00:29:22,200 Speaker 1: maybe we could combine a little bit of idea number 523 00:29:22,200 --> 00:29:24,680 Speaker 1: three with idea number one and idea number five and 524 00:29:24,760 --> 00:29:27,440 Speaker 1: we can make this thing work out. But and never 525 00:29:27,480 --> 00:29:30,960 Speaker 1: and never never went up. So with this and uh 526 00:29:31,000 --> 00:29:34,480 Speaker 1: and some of these other applications of space mirrors, I mean, ultimately, 527 00:29:34,520 --> 00:29:37,640 Speaker 1: what you're getting down to is the manipulation of light. Uh, 528 00:29:37,720 --> 00:29:40,520 Speaker 1: not only in terms of illumination, but also as as 529 00:29:40,520 --> 00:29:44,800 Speaker 1: far as energy is concerned. And so really the applications 530 00:29:44,840 --> 00:29:48,440 Speaker 1: apply to any situation in which you would want to 531 00:29:48,720 --> 00:29:54,160 Speaker 1: redirect solar energy for propulsion, as we've mentioned, for observation, 532 00:29:54,200 --> 00:29:57,600 Speaker 1: as we've mentioned also just for the energy usage. You 533 00:29:57,640 --> 00:30:02,520 Speaker 1: could potentially use these mirrors to to refocus solar energy 534 00:30:02,600 --> 00:30:04,840 Speaker 1: onto some sort of a solar up into onto a 535 00:30:04,880 --> 00:30:08,000 Speaker 1: solar energy collector. And that's what I was thinking about, 536 00:30:08,200 --> 00:30:10,480 Speaker 1: is it if you wanted to get really serious about 537 00:30:10,640 --> 00:30:14,960 Speaker 1: solar panels. Again, the State of the Union was last 538 00:30:15,040 --> 00:30:18,400 Speaker 1: night and President Obama was talking a lot about solar energy. 539 00:30:19,120 --> 00:30:21,400 Speaker 1: Build something like this and have it just beamed down 540 00:30:21,440 --> 00:30:23,520 Speaker 1: the energy right at it. But I don't know that 541 00:30:23,560 --> 00:30:26,400 Speaker 1: if that's practical or not. Yeah, that's always the challenge 542 00:30:26,480 --> 00:30:29,720 Speaker 1: with with solar energy, whether you're talking something with space 543 00:30:29,800 --> 00:30:33,360 Speaker 1: meters or just say passive solar home design. How do 544 00:30:33,440 --> 00:30:38,960 Speaker 1: you best design the system so that you maximize uh, 545 00:30:39,160 --> 00:30:43,160 Speaker 1: the benefits of the solar energy harvesting? Uh, and that 546 00:30:43,280 --> 00:30:46,360 Speaker 1: it's not just some sort of you know, expensive plus 547 00:30:46,400 --> 00:30:49,320 Speaker 1: one right exactly. Yeah, I would assume that given the 548 00:30:49,360 --> 00:30:52,160 Speaker 1: costs involved. We've talked about how much it costs to 549 00:30:52,240 --> 00:30:54,960 Speaker 1: fly things up and out or space before, especially we 550 00:30:55,000 --> 00:30:58,080 Speaker 1: talked about space weapons and our rods from God episode. 551 00:30:58,400 --> 00:31:00,960 Speaker 1: Uh that I don't know if would if the cost 552 00:31:00,960 --> 00:31:04,760 Speaker 1: benefit analysis works out. Yeah, indeed. And now when you 553 00:31:04,800 --> 00:31:09,640 Speaker 1: start getting into that far future area, yeah, you know, 554 00:31:09,920 --> 00:31:12,880 Speaker 1: kind of like over it was discussing, you know, where 555 00:31:13,080 --> 00:31:15,600 Speaker 1: we already have the Moon base in place, and then 556 00:31:15,640 --> 00:31:18,920 Speaker 1: you can dream outward from that you get into a 557 00:31:19,000 --> 00:31:22,760 Speaker 1: lot of really far fetched and and and really remarkable 558 00:31:22,800 --> 00:31:26,760 Speaker 1: ideas about how you could use a space mirror. So, 559 00:31:26,960 --> 00:31:29,480 Speaker 1: what if you had a space mirror large enough to 560 00:31:29,640 --> 00:31:33,120 Speaker 1: reflect the Sun's rays back on itself in a in 561 00:31:33,120 --> 00:31:37,880 Speaker 1: a meaningful amount, say you know, a giant space mirror 562 00:31:38,000 --> 00:31:40,840 Speaker 1: position on the other side of the Sun perhaps uh, 563 00:31:40,880 --> 00:31:44,640 Speaker 1: from Earth. Could you essentially make the Sun into its 564 00:31:44,720 --> 00:31:48,080 Speaker 1: own solar sale and then you utilize this effect to 565 00:31:48,080 --> 00:31:51,320 Speaker 1: propel the solar system in the direction of your choice. Wait, 566 00:31:51,400 --> 00:31:55,520 Speaker 1: so the Solar system itself becomes a spaceship. Yeah, yeah, 567 00:31:55,520 --> 00:31:57,400 Speaker 1: that's kind of the idea here. And now it's definitely 568 00:31:57,440 --> 00:32:02,600 Speaker 1: a type to Cardassian civilization, uh concept. But yeah, the 569 00:32:02,640 --> 00:32:05,320 Speaker 1: idea is that if you had a basically a megastructure 570 00:32:05,320 --> 00:32:08,360 Speaker 1: in space, this big reflective megastructure, you would have what 571 00:32:08,480 --> 00:32:12,520 Speaker 1: is referred to as a class A stellar engine that 572 00:32:12,560 --> 00:32:16,320 Speaker 1: would use the impulse of the radiation emitted by a 573 00:32:16,400 --> 00:32:20,480 Speaker 1: star to produce thrust. And this is also called a 574 00:32:20,520 --> 00:32:26,520 Speaker 1: Shakadov thruster. I imagine navigating spaceship Milky Way or sorry, 575 00:32:26,560 --> 00:32:31,120 Speaker 1: not Milky Way, but spaceship Solar System would be extremely difficult. 576 00:32:31,200 --> 00:32:36,000 Speaker 1: The calculations involved, uh, would be mind blowing. Yeah. It 577 00:32:36,040 --> 00:32:38,400 Speaker 1: would definitely be the domain of a of a type too, 578 00:32:38,480 --> 00:32:42,160 Speaker 1: sumplation as opposed to us um And I think I've 579 00:32:42,160 --> 00:32:44,800 Speaker 1: seen this rolled out occasionally in sci fi. There's any 580 00:32:44,920 --> 00:32:50,000 Speaker 1: n Ebanks book where the the the Earth becomes threatened 581 00:32:50,160 --> 00:32:52,440 Speaker 1: by an orc cloud that is going to block out 582 00:32:53,120 --> 00:32:55,640 Speaker 1: most of the Sun's rays and so therefore it becomes 583 00:32:55,680 --> 00:32:59,280 Speaker 1: necessary to move the Solar system to to a different 584 00:32:59,280 --> 00:33:02,560 Speaker 1: location um or perhaps they merely move the Earth in 585 00:33:02,640 --> 00:33:05,600 Speaker 1: that in that's in that particular novel. I'm having trouble 586 00:33:05,640 --> 00:33:07,880 Speaker 1: remembering off the top of my head. But yeah, when 587 00:33:07,920 --> 00:33:11,600 Speaker 1: you start talking about capturing all of the energy in 588 00:33:11,920 --> 00:33:15,160 Speaker 1: the solar system and the utilizing that, you're in this uh, 589 00:33:15,240 --> 00:33:19,160 Speaker 1: this type two level of far future technology, and I'm 590 00:33:19,200 --> 00:33:21,960 Speaker 1: just it's only just now dawning on me. I didn't 591 00:33:21,960 --> 00:33:23,640 Speaker 1: even write down a note about this. And I don't 592 00:33:23,680 --> 00:33:26,400 Speaker 1: want to spoil the spoil the movie for anybody who 593 00:33:26,400 --> 00:33:28,880 Speaker 1: hasn't seen it yet. But there is something like this 594 00:33:28,960 --> 00:33:31,800 Speaker 1: in the new Star Wars movie. Okay, yeah, you haven't 595 00:33:31,800 --> 00:33:34,840 Speaker 1: seen I have not seen it yet. Plans keep falling apart. 596 00:33:35,280 --> 00:33:37,920 Speaker 1: I don't know that it's mirrors necessarily, but they harness 597 00:33:38,000 --> 00:33:40,560 Speaker 1: the power of the sun. Okay, some sort of some 598 00:33:40,600 --> 00:33:43,800 Speaker 1: sort of solar super weapon. Then yeah, I'm the last 599 00:33:43,800 --> 00:33:46,840 Speaker 1: person on Earth too that that has not seen I 600 00:33:46,880 --> 00:33:48,840 Speaker 1: don't know about that. I'm sure that some of you 601 00:33:48,960 --> 00:33:50,520 Speaker 1: out there haven't seen it yet either. That's why I 602 00:33:50,560 --> 00:33:52,360 Speaker 1: don't want to go too far into it. But yeah, 603 00:33:52,520 --> 00:33:53,960 Speaker 1: but hey, that's one more thing I have to look 604 00:33:54,000 --> 00:33:56,959 Speaker 1: forward to when I see the new Star Wars film. 605 00:33:57,000 --> 00:33:58,960 Speaker 1: So there you have it. We've We've rolled through just 606 00:33:59,000 --> 00:34:02,280 Speaker 1: a number of the key key points in the history 607 00:34:02,360 --> 00:34:05,680 Speaker 1: of space mirrors and some of their their actual and 608 00:34:05,760 --> 00:34:08,360 Speaker 1: theoretical uses. But we're curious, you know, what else is 609 00:34:08,360 --> 00:34:10,360 Speaker 1: out there, what's popping around your your head when it 610 00:34:10,360 --> 00:34:14,040 Speaker 1: comes to either sci fi visions of space mirrors or 611 00:34:14,160 --> 00:34:17,880 Speaker 1: just sort of possible UH uses for them, Like, for instance, 612 00:34:18,320 --> 00:34:22,319 Speaker 1: what about the possibility of using solar UH mirrors in 613 00:34:22,440 --> 00:34:29,160 Speaker 1: space to illuminate a particular growing area for crops. Yeah, yeah, right, 614 00:34:29,280 --> 00:34:31,239 Speaker 1: that seems like it would be a natural one. And 615 00:34:31,239 --> 00:34:33,880 Speaker 1: I didn't get the impression from either the German or 616 00:34:33,960 --> 00:34:37,080 Speaker 1: Russian designs that they were thinking along those lines. Yeah, 617 00:34:37,120 --> 00:34:39,080 Speaker 1: but you could essentially have your own It's like having 618 00:34:39,080 --> 00:34:42,480 Speaker 1: your own hydroponic growing area, except you could have just 619 00:34:42,520 --> 00:34:45,360 Speaker 1: an enormous field somewhere. All you need isn't is the 620 00:34:45,400 --> 00:34:48,239 Speaker 1: oribital mite of a It's like you just gotta have 621 00:34:48,320 --> 00:34:52,480 Speaker 1: this multi billion dollar steaking up there. So yeah, if 622 00:34:52,480 --> 00:34:54,359 Speaker 1: you if you have ideas about this or or more 623 00:34:54,400 --> 00:34:56,839 Speaker 1: resources for us to follow up on, please let us know. 624 00:34:56,960 --> 00:34:59,080 Speaker 1: And you know, like I said at the top, we 625 00:34:59,160 --> 00:35:02,680 Speaker 1: are always of llable on social media Facebook, Twitter, and Tumbler. 626 00:35:02,920 --> 00:35:04,799 Speaker 1: We don't just post our own stuff on there either. 627 00:35:04,880 --> 00:35:07,880 Speaker 1: We like to uh curate a lot of the weird science, 628 00:35:07,920 --> 00:35:10,279 Speaker 1: the information that we find or across the web that 629 00:35:10,320 --> 00:35:13,799 Speaker 1: we don't have time to put into our episodes. Yeah, 630 00:35:13,840 --> 00:35:16,680 Speaker 1: so follow us on those accounts, uh if you use them, 631 00:35:16,760 --> 00:35:19,319 Speaker 1: and you can keep up keep up with us that way. 632 00:35:19,880 --> 00:35:22,120 Speaker 1: And hey, if you want to reach out to us directly, 633 00:35:22,440 --> 00:35:25,200 Speaker 1: you can always hit us up on email. That blow 634 00:35:25,239 --> 00:35:36,839 Speaker 1: the mind at how stuff works dot com. Well more 635 00:35:36,880 --> 00:35:39,719 Speaker 1: on this and thousands of other topics How stuff works 636 00:35:39,760 --> 00:36:01,960 Speaker 1: dot com. Bla bla fine nine nine nine nine