Latest / Stuff You Should Know / How the Moon Works
Transcript
- 0:00Speaker 1: Brought to you by the reinvented two thousand twelve Camray.
- 0:03Speaker 1: It's ready. Are you welcome to Stuff you should know?
- 0:08Speaker 1: From house Stuff Works dot Com? Hey, and welcome to
- 0:16Speaker 1: the podcast. I'm Josh Clark. With me is always as
- 0:19Speaker 1: a very reluctant Charles W. Checkers Bryant not always reluctant.
- 0:24Speaker 1: Always here with me as always sometimes reluctant as a
- 0:28Speaker 1: reluctant Chuck Bryant. How's it going, Josh? It's going fine
- 0:33Speaker 1: for me. I'm great, dude. I'm going to see Bob
- 0:36Speaker 1: Dylman tonight. Are you really living legend with Leon red
- 0:39Speaker 1: Bone or Russell? Yeah? Russell right, Yeah, he's opened up
- 0:43Speaker 1: at me. I don't really care about that. I always
- 0:45Speaker 1: confusing with Acre Winner. Yeah yeah, just they kind of
- 0:52Speaker 1: look alike. Yeah. Well that's all I have to say
- 0:55Speaker 1: about that. Okay, Um, Chuck, you're ready, I'm ready? Okay.
- 0:59Speaker 1: So um back in November nineteen sixty six, are you
- 1:05Speaker 1: ready for this? We should probably say first, let me
- 1:07Speaker 1: tell you, Chuck, we're gonna make it through this. Okay,
- 1:10Speaker 1: I have PTSD from the Sun podcast. We need to
- 1:14Speaker 1: do PTSD. I always forget that. Let me just write
- 1:16Speaker 1: that down alright, PTSD, Yes, and now we're doing the
- 1:21Speaker 1: Moon podcast, which really, aside from the orbital dynamics, has
- 1:24Speaker 1: almost no physics to it whatsoever. This is it'll be
- 1:28Speaker 1: better than the Sun. Okay, So still a little mind
- 1:30Speaker 1: numbing for me. It'll be okay, we'll make it interesting, alright.
- 1:33Speaker 1: So back in November nineteen sixty six, uh, there was
- 1:37Speaker 1: a lunar orbiter called the Orbiter two because it was
- 1:41Speaker 1: the second one UM and it was flying around the
- 1:45Speaker 1: Moon taking pictures of it for the impending moon landing
- 1:49Speaker 1: that the Apollo program was leading up toward, right exciting,
- 1:53Speaker 1: and it had taken its last bit of film, last picture,
- 1:57Speaker 1: and it actually took what's called the picture of the
- 1:59Speaker 1: Sun Tree, or it was at the time. It was
- 2:02Speaker 1: this kind of side shot of the Moon rather than
- 2:05Speaker 1: from above. It was almost like from the side, so
- 2:07Speaker 1: you could see the elevation and everything, and it just
- 2:09Speaker 1: looked like a new view of the Moon. So anyway,
- 2:13Speaker 1: the the NASA controllers tell orbiter to go ahead and
- 2:17Speaker 1: crash land, and it did on the dark side of
- 2:20Speaker 1: the Moon, never to be heard from again until like
- 2:24Speaker 1: a week ago when another lunar orbiter which was taking
- 2:28Speaker 1: pictures for the Moon based program. It's not around anymore.
- 2:32Speaker 1: We got canceled. Um caught this kind of crater, a
- 2:38Speaker 1: butterfly shaped crater that's um characteristic of a low trajectory landing.
- 2:43Speaker 1: Was that it and Um, it's exactly where NASA thought
- 2:48Speaker 1: it would be. So there you go. One of the
- 2:52Speaker 1: mysteries of the Moon, salt, the the the Yeah. This
- 2:56Speaker 1: this thing's been sitting there for you know, forty years,
- 3:00Speaker 1: chimp or anything like a chip. But I mean you
- 3:03Speaker 1: just to think of this like lunar orbiter crashed by itself,
- 3:07Speaker 1: sitting on the dark side of the Moon for forty years.
- 3:09Speaker 1: That's it's lonely. It's chilling, isn't it. It is. Have
- 3:12Speaker 1: you seen the movie Moon? Yes, enjoyed that very much.
- 3:16Speaker 1: You know the guy who directed that, Duncan Jones. That's
- 3:18Speaker 1: Um Bowie. Yeah, Bowie's son. Yeah, imagine David Bowie being
- 3:23Speaker 1: your dad. I want to see him perform live more
- 3:26Speaker 1: than anything else ever, and I don't think he'll ever
- 3:29Speaker 1: do it. Oh, he doesn't perform any longer. No, he
- 3:31Speaker 1: hadn't played. I think his last tour was like ten
- 3:34Speaker 1: years ago or something. And he kind of said this
- 3:37Speaker 1: is it? Huh, come see me. I'll be on my
- 3:40Speaker 1: Hawaiian island with him. On is that he lives in
- 3:43Speaker 1: an island? Well, he has a place in Kauai. I'm
- 3:47Speaker 1: sure he'd spend some time there. Very nice. Sorry, so
- 3:51Speaker 1: can you see where? Like really trying to put this on? Yeah, anyway, Yes,
- 3:56Speaker 1: the Moon is a good movie. And the Moon is
- 3:59Speaker 1: a good um planetary satellite to Earth. It does all
- 4:03Speaker 1: sorts of cool beneficial things for Earth. Did you know
- 4:06Speaker 1: that it has an influence on Earth? So let's talk
- 4:09Speaker 1: about the moon, Chuck. She would go all the way back,
- 4:12Speaker 1: Josh too, at the times of Aristotle. Why not Aristotle? Josh,
- 4:17Speaker 1: as we all know, I believed in the geocentric model
- 4:20Speaker 1: of the universe. Galileo said, no, no, no, you're wrong.
- 4:24Speaker 1: It's heliocentric. And apparently he came to that conclusion by
- 4:27Speaker 1: studying the moon. Yeah, basically, like the Sun is the
- 4:31Speaker 1: center of the universe, jerk, not the Earth. And uh,
- 4:35Speaker 1: they said, you know what, that's heresy and you're gonna
- 4:38Speaker 1: be under house arrest for the rest of your life.
- 4:40Speaker 1: And he's like, I have a lot of wine and
- 4:42Speaker 1: cheese in my house and that's not so bad, and
- 4:44Speaker 1: I didn't need much anyway, so I don't like the
- 4:47Speaker 1: outside world. But at first, you know, and I guess
- 4:50Speaker 1: he had a better telescope or something, because Galileo saw
- 4:52Speaker 1: a lot more detail, it sounds like than Aristotle did.
- 4:55Speaker 1: I don't think Aristotle had a telescope. Was that the deal?
- 4:58Speaker 1: I think that he was just looking at it. I
- 5:00Speaker 1: think Copernicus was the first one to look through a telescope,
- 5:03Speaker 1: or Galileo was before Copernicus. A Copernicus had a nicer telescope.
- 5:08Speaker 1: I think Galileo came after Copernicus. All right, well, then
- 5:10Speaker 1: that's the way it went. We're gonna get this wrong.
- 5:12Speaker 1: We totally are, but continue, chuck. But the point is
- 5:16Speaker 1: Aristotle thought the Earth was the center in the universe,
- 5:18Speaker 1: and that the Moon had dark spots and light spots
- 5:22Speaker 1: they thought were sees, right, Maria, Yes, I looked up
- 5:27Speaker 1: a bunch of pronunciations on this one, by the way, Maria, Yeah, no,
- 5:31Speaker 1: that sounds right. And uh, the lighter spots were correctly
- 5:36Speaker 1: perceived to be land or terry. Yeah, but it's all land.
- 5:40Speaker 1: As it turns out. It does turn out the moon
- 5:43Speaker 1: is kind of boring place. Yeah, you think, I think
- 5:47Speaker 1: as a as a destination, Yes, I think it's incredibly boring.
- 5:53Speaker 1: It'd be cool to go there. I'm sure it's the
- 5:55Speaker 1: most thrilling thing in the world to do, or beyond
- 5:58Speaker 1: the world to do, to go to the Moon and
- 6:00Speaker 1: be on the Moon. But just you know, being back
- 6:03Speaker 1: here on Earth and in discussing parts of it, like
- 6:06Speaker 1: the moon as the destination's kind of boring. What the
- 6:08Speaker 1: moon does, where the Moon came from. I think it's fascinating.
- 6:12Speaker 1: I do too. And despite the fact that they were
- 6:14Speaker 1: not sees, they still call the Maria sees. Yes, Tranquility, Yeah,
- 6:20Speaker 1: mar Tranquility or mar twin Quillium, etcetera, etcetera. And the
- 6:27Speaker 1: Sea of Tranquility is where the first moon landing took place.
- 6:31Speaker 1: They thought it looks like a nice place to land.
- 6:33Speaker 1: And that was forty three years ago this month when
- 6:37Speaker 1: we're recording, when this comes out, it will be last month.
- 6:40Speaker 1: But um, that that um buzz Aldrin, right, who never
- 6:45Speaker 1: gets mentioned? First? Yeah, Neil Armstrong. Second, how about that
- 6:49Speaker 1: um landed on the moon. Apparently buzz Aldre was the
- 6:52Speaker 1: first person to um urinate on the moon. Yeah, Neil
- 6:56Speaker 1: Armstrong didn't buzz did while they were there, not on
- 6:59Speaker 1: the moon, but while on the moon. While on the moon, okay, yeah, um,
- 7:03Speaker 1: and uh you always have to church it up then, Well,
- 7:05Speaker 1: I mean that's disrespectful. He literally on the surface of
- 7:08Speaker 1: the Moon. I think something probably really bad would happen
- 7:11Speaker 1: to his physiology if he tried to pee on the moon.
- 7:14Speaker 1: Well it would float away anyway, right, yeah, but I
- 7:16Speaker 1: mean he just implode, right, Okay, yeah, vacuum. And since
- 7:22Speaker 1: I was guys, since Buzz Alburing first pete on the
- 7:24Speaker 1: Moon in nineteen nine, um, for the following three years,
- 7:28Speaker 1: twelve other Americans set foot on the Moon. And you
- 7:31Speaker 1: don't hear a lot about that, supposedly, uh. And we're,
- 7:35Speaker 1: as far as we know, the only people to set
- 7:37Speaker 1: foot on the moon so far. Um. And they brought
- 7:40Speaker 1: back about eight hundred and forty two pounds, which is
- 7:42Speaker 1: threems of moon rock moon dust, and it was studied
- 7:47Speaker 1: and then that's about it. That was all they had.
- 7:49Speaker 1: They were like, well, I guess we can bring back
- 7:50Speaker 1: some of these rocks and that's all over. What. Yeah,
- 7:53Speaker 1: I told everybody on Earth, I'd bring him something, but
- 7:55Speaker 1: there is nothing here. I wonder if if they got
- 7:58Speaker 1: a little piece of rock. I'm sure they did. Surely
- 8:01Speaker 1: you should be able to ask for that, right yeah. Okay,
- 8:03Speaker 1: well yeah if you're the guy who went and got it, yeah, exactly. Um.
- 8:09Speaker 1: And so since then, you know, since they brought back
- 8:12Speaker 1: this moon rock, a lot of these questions that have
- 8:15Speaker 1: been around since ancient times. Um, we're settled just really
- 8:20Speaker 1: in the last like forty years or so. Like, I mean,
- 8:23Speaker 1: we now know, okay for sure that there isn't water
- 8:26Speaker 1: on the moontain. Supposedly there could be, um, but we
- 8:31Speaker 1: now have a good idea thanks to the moon rocks
- 8:33Speaker 1: how the moon was formed, which settled a longstanding debate,
- 8:37Speaker 1: that's right. And um, yeah, and just being there, they
- 8:42Speaker 1: found out a lot of stuff, like they're like, hey,
- 8:44Speaker 1: it's just in a sea, it's all land about of
- 8:48Speaker 1: it is uh the dark spots that you see, the Maria, Maria,
- 8:53Speaker 1: the Maria, and it is the is the terra is
- 8:59Speaker 1: that terry terry And uh that's the lighter parts of
- 9:05Speaker 1: the moon that you see. And that's like mountainous, it's
- 9:08Speaker 1: crazy steep mountains, craters, all kinds of things there on
- 9:12Speaker 1: the terrat. Well yeah, because um, the Earth, the Earth
- 9:16Speaker 1: was about four billion years ago, there were a lot
- 9:22Speaker 1: of meteorites bombarding this neck of the Solar system, right,
- 9:26Speaker 1: and the Earth took as many as the Moon, if
- 9:28Speaker 1: not more. It still happens today every day meteorites at
- 9:31Speaker 1: the Earth, but our atmosphere burns most of them up,
- 9:35Speaker 1: and the ones that made it through the atmosphere and
- 9:37Speaker 1: had made a substantial impact on the Earth um have
- 9:41Speaker 1: been largely covered over by the biogeochemical processes that take
- 9:45Speaker 1: place on Earth. The Moon is utterly devoided these things
- 9:49Speaker 1: these days, and has been for about the last three
- 9:51Speaker 1: billion years. So just about anything that's happened over the
- 9:54Speaker 1: last three billion years, right, is just a few meteorite.
- 10:00Speaker 1: It's some impacts here there, but for the most part,
- 10:03Speaker 1: the Moon's surface was shaped and about four billion to
- 10:06Speaker 1: three billion years ago, and it's remained the same ever
- 10:09Speaker 1: since then. In addition, they think there were volcanoes at
- 10:13Speaker 1: one point on the Moon because they noticed rills like
- 10:17Speaker 1: these channel channel like depressions that they think was from lava.
- 10:21Speaker 1: They found old lava flows and lava tubes. So they said, hey,
- 10:24Speaker 1: looks like there were some volcanoes here at one point. Yes,
- 10:27Speaker 1: and that accounts for a lot of stuff on the Moon,
- 10:31Speaker 1: but also some of its composition as well. No soil, No,
- 10:35Speaker 1: it has something called regules, and regula means basically like
- 10:38Speaker 1: blanket over solid rock. Right. So, um, it's really just
- 10:44Speaker 1: this kind of fine particulate dust moon dust with vault
- 10:50Speaker 1: mixed with volcanic glass and then larger rocks and it's
- 10:52Speaker 1: just covers the surface of the Moon. It doesn't have
- 10:55Speaker 1: soil because it doesn't have any living organisms that are
- 10:59Speaker 1: required make soil. Yeah, nothing organic on the Moon, correct. Yeah. Uh,
- 11:07Speaker 1: So they brought back these rocks. They found out that
- 11:10Speaker 1: the uh Maria, which is what we said was only
- 11:14Speaker 1: the dark spots, was primary. Uh that primarily that one
- 11:18Speaker 1: word that we said over and over on the show,
- 11:20Speaker 1: what basalt, Yeah, buzzled and uh that is igneous rock
- 11:27Speaker 1: from cooled lava. So again with the volcanoes and the
- 11:30Speaker 1: highland regions, the mountain regions we talked about was mainly
- 11:33Speaker 1: in north the site and Breccia. Yeah, did you look
- 11:37Speaker 1: that on it? I did. Because when there's a C
- 11:40Speaker 1: I C a in Italian that makes a chess sound,
- 11:44Speaker 1: but it's c H makes a sound, So it's backwards
- 11:49Speaker 1: from what we might think as Americans, pretty neat but
- 11:52Speaker 1: correct if you're into in Italian that's right. What else, Chuck,
- 11:58Speaker 1: The lunar rocks have very little in volatile compounds, so
- 12:02Speaker 1: they resembled Ers's mantle. They have very little volatile compounds
- 12:06Speaker 1: or water. And then Tracy puts in as if they've
- 12:09Speaker 1: been baked a little bit of like foreshadowing. Um. And
- 12:14Speaker 1: also check they found that the Highland areas are much older.
- 12:18Speaker 1: The rocks in the Highland areas are much older than
- 12:20Speaker 1: the um Maria areas. Right. And so now with all
- 12:25Speaker 1: of this information, we have a pretty good idea of
- 12:28Speaker 1: how the Moon formed. Yeah. Oh, they also had they
- 12:31Speaker 1: they had some size size seismometers and they found that
- 12:36Speaker 1: there's no there's no shifting of the plates going on, right,
- 12:39Speaker 1: tectonic activity in the Moon. There are no moon quakes
- 12:42Speaker 1: and um. They also used magnetometers and they did not
- 12:46Speaker 1: detect any substantial magnetic field at the around the Moon,
- 12:51Speaker 1: which means that it's not it doesn't have a substantial
- 12:55Speaker 1: iron core. Right, so they're basically just trying to figure
- 12:59Speaker 1: out how much is it like the Earth in some ways,
- 13:02Speaker 1: I mean, they one to found out what it was,
- 13:03Speaker 1: but they were kind of comparing because some of the
- 13:05Speaker 1: old previously thought reasons why the Moon was there had
- 13:09Speaker 1: to do with it literally spinning off of the Earth. Well,
- 13:12Speaker 1: it's significant that moon rocks are similar in composition to
- 13:16Speaker 1: mantle rocks found on Earth pretty close, um, which means
- 13:22Speaker 1: to a lot of people that they're the the The
- 13:25Speaker 1: Moon has always been connected to the Earth and a
- 13:27Speaker 1: lot of people's minds, right, So there's different ways that
- 13:31Speaker 1: it formed, but it's always in relation to the Earth
- 13:34Speaker 1: almost except for one. Yes, So previously to the to
- 13:37Speaker 1: the lunar landing, they had a few ideas. They thought
- 13:39Speaker 1: maybe there was the double planet hypothesis, which was the
- 13:42Speaker 1: Earth and Moon formed together. Yeah, because remember in the
- 13:45Speaker 1: Asteroid Mining podcast we talked about the formation of planets.
- 13:49Speaker 1: It's just that starts in this Uh, it starts spinning
- 13:52Speaker 1: and then everything's kind of comes together. It's an easy
- 13:55Speaker 1: way to say it. Uh. The capture hypothesis was the
- 13:58Speaker 1: Earth's gravity captured the own as it was just cruising by.
- 14:02Speaker 1: That's the only one where they weren't related. But the
- 14:05Speaker 1: Earth said hey, we're gonna hold you captive now because
- 14:07Speaker 1: we like your gentle light that you cast upon its
- 14:10Speaker 1: At nighttime. And then the fission hypothesis, which was the
- 14:14Speaker 1: Earth spun so much and so rapidly that a blob
- 14:17Speaker 1: of molten earth spun off and that was the moon. Right.
- 14:22Speaker 1: That sounds a little even in the sixties, I would
- 14:24Speaker 1: have been like, really, well, I mean, think about it.
- 14:27Speaker 1: If it's if it's forming and everything is kind of
- 14:30Speaker 1: loose still, I guess we didn't know as much back then. Um,
- 14:33Speaker 1: So all of these have been kind of shot down, right,
- 14:37Speaker 1: that's right. Um. The fact that the the Moon and
- 14:42Speaker 1: the Earth's compositions are not the same means that they
- 14:45Speaker 1: probably didn't form right alongside one another because they should
- 14:48Speaker 1: be pretty much the same material. Um. The Earth can't
- 14:54Speaker 1: possibly capture something as large as the moon as the
- 14:57Speaker 1: moon and keep it there. Um. And then lastly, chuck,
- 15:02Speaker 1: the Earth has never been known to be able to
- 15:04Speaker 1: spin fast enough to spin any part of it off.
- 15:07Speaker 1: If it were, we would be the first things off
- 15:10Speaker 1: of the Earth if it could spin that fast anybody,
- 15:13Speaker 1: let alone a sizeable chunk. So what they think now
- 15:17Speaker 1: is um. After the seventies they came up with this
- 15:20Speaker 1: thing called the giant impact or theory. Yeah, that's it's
- 15:23Speaker 1: standing up fairly well. Right, so, yeah, it's this idea
- 15:26Speaker 1: that another planet or planetoid or something about the size
- 15:31Speaker 1: of Mars, early in the Earth's formation, came along and
- 15:35Speaker 1: collided with the Earth with such force that it was
- 15:39Speaker 1: absorbed into the Earth. It broke off a chunk, and
- 15:43Speaker 1: then that part filled in the part that was was
- 15:47Speaker 1: chunked off. It's like, um, what are the what are
- 15:50Speaker 1: those twins where one eats the other in the womb called?
- 15:54Speaker 1: Oh yeah, it's kind of like that, I mean twins.
- 15:57Speaker 1: So it's like the Earth has like another planet that
- 16:01Speaker 1: really just looks like a taratoma with fingernails their teeth
- 16:06Speaker 1: inside of it. Yes, and that one, that one is
- 16:09Speaker 1: actually held up. They've done computer simulations and they said
- 16:12Speaker 1: this could have happened. Well, we left out the most
- 16:14Speaker 1: important part from that impact. It's shot out a bunch
- 16:18Speaker 1: of stuff that formed into the Moon. Yes, and that
- 16:20Speaker 1: was very hot obviously, and then and it cooled eventually.
- 16:24Speaker 1: But that's why the rocks appear to have been baked.
- 16:27Speaker 1: That was the foreshadowing, right. Um So the idea behind this,
- 16:31Speaker 1: like you said, it's still it stood up. That's enjoys
- 16:34Speaker 1: the majority opinion, right. Um So, after this impact. As
- 16:39Speaker 1: the as the Moon's spinning and forming itself into a spheroid. Um,
- 16:44Speaker 1: it's covered in this ocean of magma, right, And this
- 16:49Speaker 1: ocean of magma starts too cool and inside the cores
- 16:54Speaker 1: solid outside magma, it starts to cool and everything kind
- 16:58Speaker 1: of switches. The outside becomes solid, the inside magma and
- 17:02Speaker 1: then um. After a while, the there's this period of
- 17:06Speaker 1: um bombardment that I talked about of meteorites in the neighborhood.
- 17:10Speaker 1: It forms all of the highlands, the craters, um. Almost
- 17:15Speaker 1: every feature on the surface of the Moon is formed
- 17:17Speaker 1: during this bombardment period when the lava's eking out through
- 17:21Speaker 1: the cracks from that came after that. So this at
- 17:24Speaker 1: this point, the Moon has a molten core, a solid
- 17:28Speaker 1: exterior um, and it's being bombarded with meteorites. So we're
- 17:32Speaker 1: seeing the stuff that that we see today happen, you know,
- 17:36Speaker 1: three point nine billion years ago. Then after that period,
- 17:40Speaker 1: the there's a period of volcanic activity all over the
- 17:43Speaker 1: So that's when it's leaking up through the cracks, and
- 17:45Speaker 1: it leaks up through the cracks in the Maria areas, right,
- 17:49Speaker 1: which explains why there's more craters on the Highlands than
- 17:52Speaker 1: in the Maria because the craters were covered over by
- 17:56Speaker 1: this basult, which is so so prevalent in these areas. Right,
- 18:00Speaker 1: that makes a lot of sense actually, And and then lastly,
- 18:02Speaker 1: the volcanic activity expelled all of the heat in the moon,
- 18:08Speaker 1: turning it into a dead, lifeless hulk that we know
- 18:10Speaker 1: and love today. Well that sounds sad, but I love
- 18:14Speaker 1: it in its current state, so I'm actually happy about it. Okay,
- 18:17Speaker 1: So let's talk about it and it's current state, Chuck.
- 18:20Speaker 1: Here's so, there's the moon that's right there. That's how
- 18:23Speaker 1: it got there, right, that's kind of cool, Like you
- 18:26Speaker 1: didn't know that before. I didn't until we researched this stuff,
- 18:29Speaker 1: all right. So in its current state, Chuck, it's in
- 18:32Speaker 1: this um orbit around Earth. It doesn't spin on its axis,
- 18:36Speaker 1: and it's basically dragged along like you know a wheel
- 18:41Speaker 1: that's stuck. You can still drag it across the ground.
- 18:45Speaker 1: It's just not spinning. This is much the same way,
- 18:47Speaker 1: but rather than in a in a vertical orientation, this
- 18:50Speaker 1: is horizontal that the moon is not spinning and a
- 18:53Speaker 1: horizontal axis it's being dragged around. And so that's why
- 18:58Speaker 1: we only see the ones of the moon. The same
- 19:00Speaker 1: side of the moon all the time, the happy side
- 19:03Speaker 1: inside with the cheese. Well we wouldn't know if the
- 19:06Speaker 1: other side is happier. Well, that's the dark side. This
- 19:08Speaker 1: is scary side. Asked that crashed lunar rover or not
- 19:13Speaker 1: rover but orbiter, orbiter two, orbiter two. So you're talking
- 19:18Speaker 1: about the twenty nine it's the twenty nine point five
- 19:21Speaker 1: days or is it just twenty nine it's my understanding
- 19:24Speaker 1: that it's twenty nine point five. Okay, that's what I thought. Uh.
- 19:27Speaker 1: Sometimes it is between the Earth and the Sun. Sometimes
- 19:31Speaker 1: it's behind us. So what we're talking about here is
- 19:34Speaker 1: the moon phases. That's why you'll see the crescent moon
- 19:38Speaker 1: or the half moon or the full moon. Different parts
- 19:40Speaker 1: of the moon are lit up by the Sun depending
- 19:42Speaker 1: on where it is in relation to the Earth. It's
- 19:44Speaker 1: pretty simple. Yeah, and NTO yeah. Uh. And when it's
- 19:49Speaker 1: lit up and when it's not lit up, there's a huge,
- 19:52Speaker 1: huge difference in temperature. What was that? Was it a
- 19:56Speaker 1: future rama? It was a future rama where they had
- 19:59Speaker 1: to it back to their transport before the horizon line,
- 20:05Speaker 1: the point where the sun was you know, hitting the
- 20:08Speaker 1: moon got to them where also is just gonna vaporize
- 20:11Speaker 1: them because the difference in temperature, the mean temperature in
- 20:14Speaker 1: the shadow of the moon, if I may, I know
- 20:16Speaker 1: you like stats, please, the mean temperature in the shadow
- 20:20Speaker 1: of the moon is negative two hundred ninety two degrees fahrenheight.
- 20:24Speaker 1: Temperature negative a hundred and eighty degrees celsius in the sunlight, Chuck,
- 20:28Speaker 1: the mean, the mean, This is the one that's the average, right,
- 20:32Speaker 1: there's the median average. You could say that the mean
- 20:36Speaker 1: surface temperature in the sunlight is two hundred and sixty
- 20:39Speaker 1: six degrees fahrenheights. That's a hundred and thirty degrees celsius,
- 20:43Speaker 1: so quite a different. So yeah, there's like a six
- 20:45Speaker 1: hundred degree difference. That's the power of the sun, my friend,
- 20:49Speaker 1: which we've gone over in detail. So over these billions
- 20:53Speaker 1: of years, a couple of changes have happened to the Moon. Uh.
- 20:57Speaker 1: It's moved a little further away from the Earth, and
- 20:59Speaker 1: it's rotation has slowed some over the years, which you
- 21:05Speaker 1: know that doesn't mean anything to me right now, but
- 21:08Speaker 1: it's worth pointing out. Okay, you know what I'm saying. Yeah,
- 21:12Speaker 1: did you talk about the different phases like the did
- 21:16Speaker 1: the waning and the waxing and all that. Uh, well
- 21:19Speaker 1: I didn't. I didn't govert in that much detail. Now, well,
- 21:22Speaker 1: I've always just enjoyed this, right, So do you know
- 21:26Speaker 1: what they call a moon that's growing toward full moon
- 21:31Speaker 1: and is almost full. Uh, that's waxing give us, yes,
- 21:36Speaker 1: So remember that one it's going on its way toward
- 21:39Speaker 1: a full moon and it's there's more moon present than
- 21:43Speaker 1: there isn't there's a waxing GiB us. And then do
- 21:45Speaker 1: you know what it's called when it's going toward a
- 21:47Speaker 1: new moon and it's a thin little sliver, Uh, the
- 21:51Speaker 1: waning crescent. Yes, if you remember waning crescent and waxing,
- 21:55Speaker 1: give us, you can name any phase of the moon
- 21:58Speaker 1: just by looking at it and impress your friend that's true,
- 22:00Speaker 1: because you also have the waxing crescent, first quarter, a
- 22:03Speaker 1: waning give us last quarter, and everyone's favorite, the full moon. Yeah,
- 22:08Speaker 1: the full moon's that's the money moon. Sure, and you
- 22:11Speaker 1: know people say that things go wacky at full moon's
- 22:13Speaker 1: but I think that we found that that is largely
- 22:16Speaker 1: just stories and it's not necessarily been proven. Like emergency
- 22:21Speaker 1: medical emergency rooms are supposed to be like wacky and
- 22:24Speaker 1: people go crazy and in the full moon and where
- 22:27Speaker 1: wolves coming backed up though by by numbers. Tracy said,
- 22:30Speaker 1: it's not. Um, where did you see that? It was
- 22:33Speaker 1: somewhere in here? I didn't see it. Well, it's in there,
- 22:37Speaker 1: or maybe I saw it somewhere else. Yeah, but they
- 22:39Speaker 1: said it's it's pretty much anecdotal. But I thought I
- 22:41Speaker 1: had seen that too where it was backed up by numbers. Well,
- 22:43Speaker 1: there is, there's another um, there's a I guess if
- 22:47Speaker 1: you're a skeptic, it's a crackpot theory. But there's a
- 22:50Speaker 1: a bunch of people who believe in the concept of
- 22:54Speaker 1: the super moon. Have you heard about that? That sounds familiar.
- 22:58Speaker 1: So the moon travel, it's orbit around the Earth is
- 23:01Speaker 1: not a perfect circle. It's in the lips. So that
- 23:04Speaker 1: means that there are points where it's as far as
- 23:06Speaker 1: it can be away from the Earth and as close
- 23:08Speaker 1: as it can be. So as close as it can
- 23:10Speaker 1: be as called paragy and as far away is called
- 23:13Speaker 1: apog and it hits these once a month each right,
- 23:18Speaker 1: So it's not unusual for the Moon to be impared
- 23:20Speaker 1: your apogee, and normally when it is, it just means
- 23:23Speaker 1: that the tides are higher and lower, and we'll talk
- 23:25Speaker 1: about tides in a minute. It's right, but um, if
- 23:28Speaker 1: it's in a full moon and it's a parady, which
- 23:31Speaker 1: means that there's more exposed right to the sunlight, which
- 23:35Speaker 1: really doesn't mean anything, but it's closer. Okay, Um, Supposedly
- 23:41Speaker 1: what this happens like once every nineteen years. Supposedly that's
- 23:44Speaker 1: linked to all sorts of destructive stuff on Earth, like
- 23:46Speaker 1: earthquakes and floods and things like that. And you can
- 23:50Speaker 1: go back and say, oh, well the moon there is
- 23:52Speaker 1: a super moon in nineteen The last one was March nineteen,
- 23:59Speaker 1: two thousand and eleven. March eleventh, two thou eleven was
- 24:03Speaker 1: the Japan quake. So people who believe in the Superman
- 24:06Speaker 1: say they're see that, like, we can go back and
- 24:08Speaker 1: find this all the time. And then people who who
- 24:11Speaker 1: poo poo it's say if yeah, you're linking to unrelated phenomena. Yeah,
- 24:17Speaker 1: that's very interesting, but that's the supermoon. At the very least,
- 24:19Speaker 1: it sounds very cool. Super anything sounds cool. Um, So Chuck,
- 24:23Speaker 1: I said that we were going to talk about tides,
- 24:25Speaker 1: and I deliver around my promises. Well, you can't talk
- 24:28Speaker 1: about the Moon without talking about tides. It's true, and Riley,
- 24:33Speaker 1: we mentioned him right. The Moon has a gravitational force.
- 24:37Speaker 1: We all know that. And it it pulls on water
- 24:40Speaker 1: and the oceans. It stretches this water out and forms
- 24:44Speaker 1: what's called the title bulge on the sides of the
- 24:46Speaker 1: planet that are in line with the Moon. That's the
- 24:49Speaker 1: first part. The moon. Water obviously pulls on the side
- 24:53Speaker 1: closest to it, which causes the bulge toward the Moon
- 24:56Speaker 1: pulls on the Earth a little bit and drags the
- 24:58Speaker 1: Earth away from the water from the opposite side. And
- 25:01Speaker 1: there's another another tidal bulge. And uh, the area under
- 25:06Speaker 1: the bulge. The areas of the Earth under the bulge
- 25:08Speaker 1: are high tide. The areas on the thin sides are
- 25:11Speaker 1: low tide. It's mind boggling. Six hours, twelve hours. The
- 25:18Speaker 1: moon pulls tugs on the ocean. It does, tugs on
- 25:22Speaker 1: the ocean toward it, right, and it even moves the
- 25:26Speaker 1: Earth a little bit. It does into the ocean a
- 25:28Speaker 1: little more. Another way, the Moon actually pulls water. Yeah,
- 25:33Speaker 1: it's a pretty impressive it is. Yeah. And then on
- 25:36Speaker 1: the other side it pulls it away from the water.
- 25:38Speaker 1: It pulls the Earth away from where the water is,
- 25:41Speaker 1: so that's low tide. And yeah, like you said, that
- 25:43Speaker 1: happens every six hours, right, Yeah. And the other cool
- 25:46Speaker 1: thing is it also the moon stabilizes the Earth's rotation.
- 25:49Speaker 1: If it wasn't for the moon, we might end up
- 25:51Speaker 1: looking like wobbly top. That's it's starting to slow down, yes,
- 25:56Speaker 1: like Inception. Yeah, your favorite movie. So, um, you know
- 26:03Speaker 1: that that top wobbling. Tracy talks about precession. Um where
- 26:08Speaker 1: because of that that skew to its axis. The angle
- 26:12Speaker 1: of its axis. The polar star changes every like fourteen
- 26:17Speaker 1: thousand years, I think twenty six thousand years. So right now,
- 26:21Speaker 1: Polaris is the north star. Um. The north star in
- 26:26Speaker 1: three thousand BC was called Theuban. Did you know that? No,
- 26:30Speaker 1: So we're gonna get another one and a D fourteen
- 26:32Speaker 1: thousand Vega will be the pole star. Huh Are they cool?
- 26:38Speaker 1: That is pretty cool? I hope I'm around to see it.
- 26:40Speaker 1: I don't. I don't know. They're gonna have to be
- 26:43Speaker 1: some significant advances in longevity really in the next years. Um,
- 26:48Speaker 1: so what else do we have a chuck? Well, we've
- 26:51Speaker 1: got eclipses. If you want to dive into that. What's
- 26:54Speaker 1: it's worthy take it? Think? Uh, when the Moon passes
- 27:00Speaker 1: between the Sun and the Earth, right, occasionally, you're gonna
- 27:03Speaker 1: get that exact alignment of the Sun, Moon and Earth,
- 27:07Speaker 1: and that's a solar eclipse. And I don't know if
- 27:09Speaker 1: a lot of people know this. When you have a
- 27:10Speaker 1: solar eclipse that same month, you're gonna have a lunar
- 27:12Speaker 1: eclipse as well. Yeah, it's like in the bag. In
- 27:15Speaker 1: the bag, but the moon has to be full, correct, Yeah,
- 27:19Speaker 1: when the moon is full, a lunar eclipse will occur
- 27:23Speaker 1: in the same month as a solar eclips Yes, you're right, okay,
- 27:25Speaker 1: but for the solar eclipse, it's got to be a
- 27:27Speaker 1: new moon, yes, Josh, new new phase only. So when
- 27:31Speaker 1: you have a lunar eclipse, the moon is new and
- 27:33Speaker 1: it's in line between the Sun and the Earth. And
- 27:38Speaker 1: then when it's full fifteen days later, fourteen days later,
- 27:42Speaker 1: it's on the other side of the Earth, you're gonna
- 27:44Speaker 1: have a lunar And depending on where it goes into
- 27:49Speaker 1: the Earth's shadow, either the pin umbra, which is like
- 27:52Speaker 1: an angled part of the shadow it's not the full
- 27:54Speaker 1: shadow um or the umbro, which is the full on shadow.
- 27:59Speaker 1: It'll either be a partial or of full eclipse. That's right.
- 28:01Speaker 1: And kids, remember never staring too a solar eclipse. Right,
- 28:04Speaker 1: you can stare at a lunar eclipse all night long
- 28:06Speaker 1: if you want to. So we talked about will the
- 28:09Speaker 1: Moon saved humanity? We talked about lunar bases, and we
- 28:12Speaker 1: talked about um mining, asteroids and fake moon landing. This
- 28:16Speaker 1: is like our fourth Mooney. But I think that there
- 28:19Speaker 1: should be required listening because you know, there's there's this
- 28:24Speaker 1: there's an idea that there's possibly ice that was missed
- 28:27Speaker 1: on the Moon. There's a couple been a couple of
- 28:30Speaker 1: the Clementine probe found evidence of it, and then a
- 28:34Speaker 1: more recent one said yeah, that's probably ice right there,
- 28:38Speaker 1: which probably a good deal. Well, yeah, it probably got
- 28:41Speaker 1: different like comets or something else. But there's ice on
- 28:43Speaker 1: the Moon, and if there is, then that means that
- 28:45Speaker 1: we have water and fuel on the Moon for a
- 28:49Speaker 1: moon base, which is very exciting news. It's a lot
- 28:51Speaker 1: cheaper apparently too. If you had a moon base to
- 28:54Speaker 1: send off a rocket from the Moon, then it would
- 28:57Speaker 1: be from the Earth. Plus you can be like, I
- 28:58Speaker 1: got a moon base and that's just cool. Yeah, it
- 29:02Speaker 1: sounds so sixties unless you see the movie Moon and
- 29:06Speaker 1: that wasn't very cool at all. Alright, good moon movies.
- 29:10Speaker 1: What you got? Uh? Well Moon? Okay, what else is there?
- 29:17Speaker 1: Moon raker? Yeah, um paper Moon Moon River it's a song. Yeah, sure,
- 29:28Speaker 1: I bet there's been a movie called Moon Rivers. I'm
- 29:30Speaker 1: gonna do you think you remember the film Breakfast at Tiffany's.
- 29:36Speaker 1: I love that movie. Well that's one thing we've got. Okay, wow,
- 29:42Speaker 1: Well the song is that Breakfast that Tiffany's? Is that
- 29:45Speaker 1: the name of it? By that awful band who I
- 29:48Speaker 1: hope doesn't listen to this show. Uh sorry, that was
- 29:51Speaker 1: a sidetrack. So um. The reason we mentioned that they
- 29:55Speaker 1: found what they think might be ice is because that's
- 29:57Speaker 1: pretty important because um, President Bush was GungHo to go,
- 30:02Speaker 1: uh find out and potentially get on the moon again.
- 30:06Speaker 1: And Obama came in and in two thousand ten, in
- 30:09Speaker 1: February and canceled the constellation program, which I looked into
- 30:15Speaker 1: because my first thought was, you know, I'm a big
- 30:16Speaker 1: fan of our president, and I thought, well that stinks.
- 30:21Speaker 1: I wanted to go back to the Moon, and I
- 30:23Speaker 1: think there's there's it's worthy to do so, Oh we will.
- 30:26Speaker 1: It'll just be private companies that get there. Exactly. That's
- 30:29Speaker 1: what he says, at least as he ordered a review
- 30:31Speaker 1: and found it to be behind schedule and over budget
- 30:35Speaker 1: and just not a very lean program. And so hey,
- 30:38Speaker 1: let's extend the International Space Station for about five years,
- 30:43Speaker 1: give NAS about six billion bucks, and then see if
- 30:45Speaker 1: we can get some private companies to start shuttling astronauts
- 30:48Speaker 1: up there. Into the private sector. Yeah, so we'll see
- 30:52Speaker 1: what happens. Neil Armstrong is against that, but Paul's buzz
- 30:56Speaker 1: altern is for it. Yeah. I don't know if they're
- 30:59Speaker 1: duking it out or it, But well, how do you
- 31:01Speaker 1: feel about it? I don't know. I mean I think
- 31:05Speaker 1: if the private sector could get involved, and that's that's good.
- 31:08Speaker 1: That's companies making money. It is. But like I tend
- 31:11Speaker 1: to think of like the Moon is a part of
- 31:13Speaker 1: the commonwealth of humanity, you know, like that, it just
- 31:17Speaker 1: seems like you shouldn't you shouldn't apply capitalism to the Moon. Yeah,
- 31:22Speaker 1: maybe not, but what you know, China might get there
- 31:25Speaker 1: and set up camp and be like no, no, no,
- 31:27Speaker 1: China will get there. They are spending a significant amount
- 31:30Speaker 1: of money, They're building their own international space station. Actually
- 31:33Speaker 1: it's just a National Space station because it's just theirs.
- 31:37Speaker 1: So yeah, they'll be on the Moon for the National
- 31:39Speaker 1: Space Station. Yeah, that's uh. I mean, do we have
- 31:44Speaker 1: an article on who owns space? I know we have
- 31:48Speaker 1: who owns the oceans? We did that, but I mean
- 31:50Speaker 1: that's a valid thing. Well, let's find out. What if
- 31:52Speaker 1: Trya got up there and they're like, this is ours.
- 31:54Speaker 1: Now you can gotta you can see the moon base?
- 31:58Speaker 1: All right, we gotta do that. Alright, let's the moon
- 32:01Speaker 1: if you want to learn more about the Moon. And seriously,
- 32:03Speaker 1: there's some really handy graphs and illustrations in this type
- 32:07Speaker 1: in Moon in the search bar at how stuff works
- 32:10Speaker 1: dot com and that brings up listener mail hold on
- 32:14Speaker 1: their partner. We are going to plug our new audio
- 32:20Speaker 1: book that is available on iTunes, The super Stuff. It's
- 32:23Speaker 1: called The super Stuff Guide to Happiness. Features interviews and
- 32:27Speaker 1: Josh's niece, very cute niece, and um what else, great
- 32:32Speaker 1: sound design. We talked to Eric Wilson, who wrote the
- 32:36Speaker 1: book Against Happiness. Awesome Wake Forest professor. Great interviews in
- 32:41Speaker 1: this one. Yeah, um, and we we talked to a
- 32:43Speaker 1: bunch of great people, uh, and just really got into
- 32:47Speaker 1: what is happiness? What makes us happy? How how can
- 32:50Speaker 1: we possibly study happiness and just came up with some
- 32:53Speaker 1: pretty good answers. It's worth it. It's worth the three
- 32:58Speaker 1: or more in Australia, or if it makes you feel better,
- 33:01Speaker 1: divide that three ninety nine over the three hundred and
- 33:03Speaker 1: forty something shows nothing. That's almost just like a penny
- 33:08Speaker 1: of show. Yeah, not even except in Australia, where it's
- 33:11Speaker 1: gonna be more like a tough pence of show. Yeah.
- 33:13Speaker 1: We're gonna work that off over the next couple of
- 33:15Speaker 1: years to our AlSi friends. So it's on iTunes, the
- 33:18Speaker 1: Stuff You Should Know, super Stuff Guide to Happiness, and
- 33:22Speaker 1: when you search that on iTunes, it will probably bring
- 33:24Speaker 1: up the super Stuff Guide to uh the Economy, which
- 33:28Speaker 1: is pretty good listen to if you ask me. Agreed. Um.
- 33:31Speaker 1: And now that we've done this and we did it shamelessly,
- 33:34Speaker 1: that's right, it's time for listener mail again. Josh, we
- 33:40Speaker 1: called for a karma off. Send us your karma stories.
- 33:43Speaker 1: I'm gonna read one and uh, this is from a
- 33:46Speaker 1: dude in a band that I'm actually a fan of. Okay,
- 33:50Speaker 1: their name is Fang Island and they're awesome and they're
- 33:54Speaker 1: based in Brooklyn, New York now, although they're originally from
- 33:56Speaker 1: Rhode Island. And Jason Bartel, a Fang Island, wrote in
- 33:59Speaker 1: and said this, I've been joining the podcast for a while.
- 34:02Speaker 1: I'm in a touring band. It's been way too much
- 34:05Speaker 1: time in the van, so I welcome the opportunity to
- 34:08Speaker 1: keep my brain occupied. So thanks. And if people wrote
- 34:11Speaker 1: in with lots of karma stories, and if you think
- 34:14Speaker 1: I'm just reading this because I'm a fan of this
- 34:15Speaker 1: guy's band, then you're right. So I apologize if you
- 34:18Speaker 1: think your story was better. Uh. He went to college
- 34:22Speaker 1: in Providence, Rhode Island. Was driving home to New Hampshire
- 34:24Speaker 1: one holiday weekend and nearing the end of the trip,
- 34:27Speaker 1: there's a toll there and I had zero money in
- 34:30Speaker 1: my wallet and I was stuck in line. It was
- 34:32Speaker 1: too late. In hindsight, I was probably overly panicked, because
- 34:35Speaker 1: the penalty for not having enough money at a toll
- 34:38Speaker 1: in New Hampshire is probably pretty minuscule. Like they probably
- 34:41Speaker 1: would have said, don't worry about it. They're really nice
- 34:43Speaker 1: up there, you know, Yeah, you've ever been there. I
- 34:47Speaker 1: have not been in New Hampshire. But day yea Evermont,
- 34:49Speaker 1: They're all just like super nice holes. Uh. Nevertheless, I
- 34:52Speaker 1: started sweating, my heart was racing. I began scrounging for
- 34:55Speaker 1: loose change to no avail. Uh. One long shot scenario
- 34:59Speaker 1: that crossed my mind was maybe the car in front
- 35:00Speaker 1: of me would pay for me for some reason. But
- 35:03Speaker 1: I dismissed it, so I barely knew that I had
- 35:06Speaker 1: even thought it. But when it came time for me
- 35:08Speaker 1: to face the music, it turns out this is exactly
- 35:11Speaker 1: what happened. The operator said the car in front of
- 35:14Speaker 1: me covered my fare and said to have a nice day.
- 35:17Speaker 1: I was stunned. I have no idea still why they
- 35:20Speaker 1: paid for me, even sped up alongside them to give
- 35:23Speaker 1: him a thank you and wave my gun in and
- 35:25Speaker 1: tell him pull over. They want to ask them, but
- 35:27Speaker 1: they never acknowledged me. Normally, it would be stone cold
- 35:30Speaker 1: case of luck, except that I've actually done this before
- 35:32Speaker 1: for other people in the past. When I felt randomly charitable,
- 35:36Speaker 1: I realized this is probably the very definition of the
- 35:38Speaker 1: simplified New Age interpretation of karma that you were talking about.
- 35:43Speaker 1: But I was destruck by the almost cute one to
- 35:45Speaker 1: one ratio of this particular karmic transaction, and that is
- 35:50Speaker 1: Jason Bartel of Fang Island, who is a great band.
- 35:53Speaker 1: They got a eight point three review on their debut
- 35:55Speaker 1: album on Pitchfork, which is really Pitchfork. They're not kind
- 36:00Speaker 1: the bands usually, well that's not true. They they review
- 36:03Speaker 1: how they review, but at eight point three is good.
- 36:06Speaker 1: They're not sick of fans. They are not. They will
- 36:09Speaker 1: they will trash your record if they don't like it.
- 36:11Speaker 1: So they're they're awesome, and go see them. They're on tour.
- 36:14Speaker 1: I think said they might be come through Atlanta as
- 36:16Speaker 1: false maybe if you want to say saying them again
- 36:19Speaker 1: Bang Island. Okay. They opened up for Flaming Lips a
- 36:22Speaker 1: lot on this last tour, so that should tell you
- 36:24Speaker 1: something about their Their sound very cool, but they sound
- 36:27Speaker 1: like the Flaming Lips there, No, I mean a lot
- 36:29Speaker 1: of it's instrumental. I mean they're just insanely talented and uh,
- 36:33Speaker 1: their self described sound is quote everyone high fiving everyone,
- 36:38Speaker 1: and he's kind of right. It sounds like how I
- 36:41Speaker 1: would describe the Go Team. Uh. Yeah, they have been
- 36:45Speaker 1: compared to them, although this is like a three guitar onslaught,
- 36:50Speaker 1: but it's like happy music. It's not like Explosions in
- 36:53Speaker 1: the Sky. Got type of instrumental stuff, and they got
- 36:57Speaker 1: words too. It's just not like the first course type
- 36:59Speaker 1: of songs. They clients and scissors very unique. Goodness me,
- 37:05Speaker 1: that was a plug and a half. Well, if you
- 37:06Speaker 1: have a band that you think Chuck likes, he wants
- 37:09Speaker 1: to hear about it. I really do. Actually I don't like, Like,
- 37:13Speaker 1: what if one of my heroes listens to the show
- 37:15Speaker 1: and I'll never know? Or what if it's a new
- 37:18Speaker 1: band that you've never heard of yet? Well, that too, Okay,
- 37:22Speaker 1: you should contact Chuck like David Bowie. What if he
- 37:24Speaker 1: listens David Bowie does not listen. You're right. You can
- 37:28Speaker 1: contact Chuck and me. We're both on the same email address.
- 37:32Speaker 1: You just need to direct it toward us at Stuff
- 37:36Speaker 1: Podcast at how stuff works dot com. Be sure to
- 37:45Speaker 1: check out our new video podcast, Stuff from the Future.
- 37:48Speaker 1: Join how Stuff Work staff as we explore the most
- 37:50Speaker 1: promising and perplexing possibilities of tomorrow, brought to you by
- 37:56Speaker 1: the reinvented two thousand twelve Camray. It's ready, are you