SGU Episode 150: Difference between revisions
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=== Solar Power from Space <small>(8:53)</small> === | === Solar Power from Space <small>(8:53)</small> === | ||
* www.universetoday.com/ | * Universe Today: [http://www.universetoday.com/14646/harvesting-solar-power-from-space/ Harvesting Solar Power from Space] | ||
S: The next news item has to do with harvesting sunlight from outer space. | |||
R: That's the best place to get it; it's everywhere! | |||
B: Pretty much. I've been waiting for this for a long time. | |||
E: Well here it is. | |||
B: For years, I've been saying, just put the stupid thing in space or on the moon and we'll be good. But it seems that this whole idea has been reinvigorated and reinvestigated. It's been around, like I said, since the '70s but it's always been seen as prohibitively expensive. NASA actually did an assessment in the '70s trying to figure out what this thing would cost and they came up with a number like around one trillion dollars. | |||
S: Yeah. | |||
S/E: It's expensive. | |||
B: How much is that in 2008 money? I mean, that's a lot of money, but it might not even be fair to compare it because lots of costs have come down. I'm not sure what it would cost today, but surprisingly, India and China are the ones that are really pushing this, which kind of makes sense if you think about it, 'cause their energy needs are just exploding, so much that they've gotta really look at all their options. Even though the price tag definitely will be hefty—maybe not a trillion but tons of money... | |||
<blockquote>Dr. Evil from ''Austin Powers'': ''(dramatically)'' One hundred billion dollars</blockquote> | |||
The arguments being made, and it makes sense to me, that you could use this to bolster your economy for decades through energy trading. So you foot the bill for this, which would be a lot, but then you could sell off the energy in various ways and make tons of money for quite amount of time. The energy—I mean, one obvious way to get it down would be to beam the energy down, and obviously people are thinking, "oh, wow, what's going to happen if you walk into the beam or a plane or a bird flies through it" but actually, if you use low-energy microwaves, you could—birds could fly right through it and it really wouldn't be a problem. | |||
E: Well, what kind of loss do you experience in a transfer like that? | |||
B: Actually, when you go from {{w|Direct current|DC}} to microwave, from what I've read, it's very efficient. Surprisingly efficient. There is some loss, obviously, but— | |||
S: There has to be. | |||
B: —not as much as you would think. Other problems people have come up with are debris. Oh, what's going to happen if this gets hit with all the debris that's up there, especially all the debris that us and China have been causing. But actually, this would be in {{w|Geosynchronous orbit|geosynchronous orbit}}, where there is essentially almost no real debris up when you get really that high. The debris problem really is in low-Earth orbit and not that really high geosynchronous orbit, so that really wouldn't be much of a problem. | |||
S: But the repair would be difficult, especially in the high orbit. Repair and maintenance of this. | |||
B: Well, yeah, it would be a big problem, because you can't—the Shuttle's not going to be going up there. And another big problem that I see is that this technology is changing so fast— | |||
S: Yeah, I agree. | |||
B: —by the time you get it up there, it's like, well, we got something that's 20 times more efficient. So you're going to have to—we'll be taking a hit in terms of the efficiency, 'cause very quickly it would change. | |||
S: It seems like a great idea ''eventually''— | |||
B: Right. | |||
S: My sense is it may be a little bit premature to start such a project right now. But you know, somebody like NASA needs to do the real hard calculations. One thing I thought was interesting... This is from the Pentagon's National Security Space Office 2007 report, trying to give an example of how impressive the potential of this would be, said that "a single kilometer-wide band of geosynchronous Earth orbit experiences enough solar flux in one year to nearly equal the amount of energy contained within all known recoverable conventional oil reserves on Earth today." | |||
B: That really puts it into perspective right there. | |||
S: Yeah... I agree that sounds impressive, but then I was thinking, "wow, a one-kilometer-wide band all the way around the Earth in synchronous orbit" and I calculated that out—if I did the calculation correct, that's 1.6 billion miles of kilometer-wide solar panels. | |||
E: That's a lot. | |||
B: I wasn't interpreting it as a contiguous band completely around. | |||
S: That's what—I was trying to figure that out too, but that's what I think he's saying: a band of geosynchronous Earth orbit. | |||
B: I interpret it as a kilometer wide, and... | |||
S: But then how long? You have to say how long. I think it's all the way around the Earth. In which case, it's not that impressive. 'Cause that's— | |||
B: No, then it's not. | |||
S: —1.6 billion miles of solar panels. That's not that impressive. | |||
E: Would a solar flare screw this thing up and like totally trash it? | |||
S: Oh yeah. I mean, solar flares are nasty. Especially up high, totally outside of the magnetic field of the Earth— | |||
B: {{w|Magnetosphere}}. | |||
S: —wouldn't be any protection. | |||
E: Would you want your multi-trillion dollar investment up there floating and being exposed to— | |||
R: Yeah, but what are the chances of a solar flare actually smacking it? | |||
S: It'll happen on a regular basis. | |||
B: Well, how—Steve, I don't think it'll be as bad as you think; I mean, how are geosynchronous satellites handling them now? | |||
S: Yeah, I mean, so it would have to be taken into consideration; it would have to be built to tolerances so that— | |||
B: Right. Absolutely. | |||
S: —the electronics wouldn't get fried every time there's a solar flare. | |||
B: Right, and you could also determine when one is coming and shut down key electronics. They shut down satellites a lot for stuff like this and they might be able to do the same thing for this kind of technology. | |||
S: Right. Well, interesting; I think this is something that we will see eventually, but I don't think it's going to be anything any time in the near future. | |||
=== Green Our Vaccines Rally in DC <small>(14:07)</small> === | === Green Our Vaccines Rally in DC <small>(14:07)</small> === |
Revision as of 03:52, 17 November 2014
This episode needs: transcription, formatting, links, 'Today I Learned' list, categories, segment redirects. Please help out by contributing! |
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SGU Episode 150 |
---|
June 4th 2008 |
(brief caption for the episode icon) |
Skeptical Rogues |
S: Steven Novella |
B: Bob Novella |
R: Rebecca Watson |
E: Evan Bernstein |
Guest |
WI: Walter Isaacson |
Quote of the Week |
A popular feel for scientific endeavors should, if possible, be restored given the needs of the twenty-first century. This does not mean that every literature major should take a watered-down physics course or that a corporate lawyer should stay abreast of quantum mechanics. Rather, it means that an appreciation for the methods of science is a useful asset for a responsible citizenry. What science teaches us, very significantly, is the correlation between factual evidence and general theories, something well illustrated in Einstein's life. |
Links |
Download Podcast |
Show Notes |
Forum Discussion |
Introduction
You're listening to the Skeptics' Guide to the Universe, your escape to reality.
S: Hello and welcome to the Skeptics' Guide to the Universe. Today is Wednesday, June 4th, 2008, and this is your host, Steven Novella, President of the New England Skeptical Society. Joining me this evening are Bob Novella...
B: Hey, everybody.
S: Rebecca Watson...
R: Hi, everyone.
S: And Evan Bernstein.
E: Hello, everyone. On this day in 1783, the Montgolfier brothers publicly displayed their hot air balloon.
S: Is that right?
B: Oh, so that's why Google changed their image to a balloon.
E: That's right. Very good, Bob; I noticed that too.
B: I thought that might be it. Excellent.
E: And that's what... made me bring that up tonight. So.
R: So the hot air balloon was more important than women gaining the right to vote... in America.
E: Women can vote?
S: (laughs) Well, also, what happened 40 years ago today?
E: Ooh... 40 years ago.
S: Robert Kennedy was assassinated.
R: Oh, yeah.
E: Right.
B: Wow.
S: This is a momentous day.
E: What a day.
B: How about 50 years ago today?
(laughter)
R: You made something up?
S: I don't know.
B: My buddy at work was born.
S: (laughs)
R: Wow!
S: How did I miss that?
B: Today was his 50th birthday.
E: Why isn't that in Wikipedia?
R: Happy birthday, random dude we don't know.
B: Doug. His name is Doug.
S: But all of those historical events will pale in comparison to today, which is the SGU 150th episode.
E: 1-5-0.
B: No way! Whoa.
R: Oh. All right.
B: Cool.
E: Where are the balloons? I thought we were releasing balloons or something. Oh well.
S: Something; doves or whatever. We have an excellent interview coming up later in the show with Walter Isaacson, author of Einstein. But first, some news items.
News Items
New Alien Video (1:50)
- www.rockymountainnews.com/news/2008/may/30/alien-commission-causes-commotion/
- br.youtube.com/watch?v=4h_ZR5F0PFg
- Stan Romanek: www.stanromanek.com/03)%20Picture%20&%20Video%20Timeline%20Page_website/
S: The big skeptical news from the past week is a new alien video. And...
R: Oooh.
E: Ha!
S: You could see this coming a mile away. A gentleman by the name of Jeff Peckman, who is trying to put forward this proposal for an extraterrestrial affairs commission in his hometown of Denver, Colorado. He thinks that we need to set up a commission to deal with the inevitable interaction we're going to have with aliens when they make themselves known to us. Well he announced last week that—last Friday—he was going to be showing to the press what he claims is an authentic video of a alien, an extraterrestrial. Now... (chuckles) we weren't expecting much and we didn't get much. Actually, the video itself, although it was shown to the press, was not made public.
R: Right; we got a still from it, though, which—
S: Yeah.
R: I mean, that's enough to convince me. Definitely an alien.
S: So there's a still photo; it's... so, here's the story. And Jeff Peckman is not the originator of this video; he got it from Stan Romanek. Stan Romanek—go to stanromanek.com and you can read all about this guy—he claims to have the most scientifically documented on-going extraterrestrial contact in history, which is a claim to fame that Billy Meier, the Swiss farmer, claims for himself. So these guys could duel it out and say who has the most documented on-going alien encounter. But go to the website; obviously the guy's a crank. I mean, he's got the same lame, blurry, worthless photos. You know, if you've been having... ten years, hundreds of encounters with aliens, that's the best you could come up with? The same lame, blurry photos that anyone could come up with? Completely unconvincing. And you have to be suspicious of someone who's having repeated rare, random encounters with aliens. Or I guess, I suppose he thinks that they're so interested in him individually that they just keep coming back. So he claims that he thought that there was somebody sneaking and peeping around his house, so he set up an infrared camera at his bedroom window to catch the peeper. And lo and behold, he captured an alien peeping in through his bedroom window in infrared. Now, there's multiple problems with that. And as Rebecca said, all we have from that is a still, which is kind of a low-res picture of his bedroom window with, you know, a blurry typical gray alien-type of head poking up, looking through the window.
R: Yeah, it's pretty pathetic.
B: It doesn't look like an infrared picture to me.
S: Well, I mean, I think... it's not clear based upon that still whether it's infrared or not. And I think it's been enhanced, and actually, there's an enhanced enhanced version of it so you can see the alien better. But you know, it's just a pixelly, kind of blurry, pretty generic alien head.
R: What I find funny is that there's some skeptics who... they created a video that was meant to show the press that "hey, we can do it, too".
E: Yeah, I saw that.
R: Is that really necessary at this point? I mean, isn't it like, come on. It's some kook with a video of an alien peeking through his bedroom window. Do we really need to go to the trouble to put together a video debunking this?
S: Yeah, but it was interesting, because Peckman specifically claimed that this would've taken a Hollywood studio tens of thousands of dollars to produce. And so people said, "really? OK. Here, I did it for a hundred bucks in an hour." Yeah, or in a couple of hours. And then everyone started doing it; it starts proliferating; now on YouTube there's multiple versions of the fake video that look just as good as—
B: Probably better.
S: Yeah, probably even better than what the video probably looks like based upon that still.
E: I seem to recall the same thing happening with the alien autopsy video from the '90s.
S: Exactly.
E: —is that people came out and said, "look, we can do it and we can do it even better".
R: The one that ended up on Fox?
S: Yeah. Right. So, that took away that claim, that this would be hard to fake and expensive and difficult/
R: I guess I'm just depressed that anybody is giving this any credence. Like, "hey, everybody, I have proof aliens exist. I'm only going to show it to my cat, but you'll just have to take my word for it. Now spread the word."
E: Not just giving this credence, Rebecca; this was front-page news splashed all over the Internet. It really was—
R: Yeah, it's really pathetic.
E: It was top, top story.
S: Now, my sense is that—I mean, I think Stan Romanek is a delusional believer. That's my impression from reading his website. I mean, it could be just a hoaxer, too. But, and you know, being a hoaxer and a believer's not mutually incompatible; he may be doing this so that people will believe him. You know, the so-called pious fraud. Peckman... this guy's interesting history, too. He owns a company that sells the Metatron Personal Harmonizer, which read this website. I mean, this is really just techno-babble gobbledygook about aligning the electromagnetic waves from your computer and your electrical devices to... whatever, to make you harmonize with the universe. It really is—
B: You had me at Metatron, dude.
S: Yeah. It's something out of Transformers. Who was that, Megatron? He went to the Maharishi University of Management; he ran for the Senate under the Natural Law Party, which is the party of the Maharishi. So he has a long history of being a kook, basically. Peckman. What he said on one of his interviews was that... "well, I don't want to get all caught up in whether or not this video is real or anything. And in and of itself, the video is not that convincing. But if you put it in the context of all the other evidence for extraterrestrials" and then he sort of runs down the same, lame list of stuff that's been around for years. So he's really using this, I think, as a publicity stunt to sell the rest of the UFO evidence. But I think he may suspect that there's something fishy about it. So he doesn't want to pin his hopes on this video. 'Cause if this video gets shown definitely to be a fraud, he doesn't want to say... well, that's like the only piece of evidence that he was pinning his hopes on. He just wants it to be the foot in the door for all the other crappy evidence that he has.
E: Right. To pin your hope on a video as evidence for anything is hardly evidence at all.
B: So it's like a bait and switch... in a sense.
S: Yeah. It's lame. It's all a publicity stunt.
E: Well, it worked. That part of it worked.
S: Yeah. It's true; it did work as a publicity stunt, and Stan Romanek—
E: Sure did.
B: Oh, yeah.
R: We're reporting it.
S: —has a documentary coming out, where the video will be shown. So this is a teaser. This is a teaser for this guy's documentary. For Peckman's extraterrestrial affairs commission. That's what this is. It's all crap.
B: Coming attractions.
E: Well, he got on Larry King to talk about it, so.
S: Yep, yep. Let's move on, 'cause we've wasted enough time on this.
B: Oh, yeah.
Solar Power from Space (8:53)
- Universe Today: Harvesting Solar Power from Space
S: The next news item has to do with harvesting sunlight from outer space.
R: That's the best place to get it; it's everywhere!
B: Pretty much. I've been waiting for this for a long time.
E: Well here it is.
B: For years, I've been saying, just put the stupid thing in space or on the moon and we'll be good. But it seems that this whole idea has been reinvigorated and reinvestigated. It's been around, like I said, since the '70s but it's always been seen as prohibitively expensive. NASA actually did an assessment in the '70s trying to figure out what this thing would cost and they came up with a number like around one trillion dollars.
S: Yeah.
S/E: It's expensive.
B: How much is that in 2008 money? I mean, that's a lot of money, but it might not even be fair to compare it because lots of costs have come down. I'm not sure what it would cost today, but surprisingly, India and China are the ones that are really pushing this, which kind of makes sense if you think about it, 'cause their energy needs are just exploding, so much that they've gotta really look at all their options. Even though the price tag definitely will be hefty—maybe not a trillion but tons of money...
Dr. Evil from Austin Powers: (dramatically) One hundred billion dollars
The arguments being made, and it makes sense to me, that you could use this to bolster your economy for decades through energy trading. So you foot the bill for this, which would be a lot, but then you could sell off the energy in various ways and make tons of money for quite amount of time. The energy—I mean, one obvious way to get it down would be to beam the energy down, and obviously people are thinking, "oh, wow, what's going to happen if you walk into the beam or a plane or a bird flies through it" but actually, if you use low-energy microwaves, you could—birds could fly right through it and it really wouldn't be a problem.
E: Well, what kind of loss do you experience in a transfer like that?
B: Actually, when you go from DC to microwave, from what I've read, it's very efficient. Surprisingly efficient. There is some loss, obviously, but—
S: There has to be.
B: —not as much as you would think. Other problems people have come up with are debris. Oh, what's going to happen if this gets hit with all the debris that's up there, especially all the debris that us and China have been causing. But actually, this would be in geosynchronous orbit, where there is essentially almost no real debris up when you get really that high. The debris problem really is in low-Earth orbit and not that really high geosynchronous orbit, so that really wouldn't be much of a problem.
S: But the repair would be difficult, especially in the high orbit. Repair and maintenance of this.
B: Well, yeah, it would be a big problem, because you can't—the Shuttle's not going to be going up there. And another big problem that I see is that this technology is changing so fast—
S: Yeah, I agree.
B: —by the time you get it up there, it's like, well, we got something that's 20 times more efficient. So you're going to have to—we'll be taking a hit in terms of the efficiency, 'cause very quickly it would change.
S: It seems like a great idea eventually—
B: Right.
S: My sense is it may be a little bit premature to start such a project right now. But you know, somebody like NASA needs to do the real hard calculations. One thing I thought was interesting... This is from the Pentagon's National Security Space Office 2007 report, trying to give an example of how impressive the potential of this would be, said that "a single kilometer-wide band of geosynchronous Earth orbit experiences enough solar flux in one year to nearly equal the amount of energy contained within all known recoverable conventional oil reserves on Earth today."
B: That really puts it into perspective right there.
S: Yeah... I agree that sounds impressive, but then I was thinking, "wow, a one-kilometer-wide band all the way around the Earth in synchronous orbit" and I calculated that out—if I did the calculation correct, that's 1.6 billion miles of kilometer-wide solar panels.
E: That's a lot.
B: I wasn't interpreting it as a contiguous band completely around.
S: That's what—I was trying to figure that out too, but that's what I think he's saying: a band of geosynchronous Earth orbit.
B: I interpret it as a kilometer wide, and...
S: But then how long? You have to say how long. I think it's all the way around the Earth. In which case, it's not that impressive. 'Cause that's—
B: No, then it's not.
S: —1.6 billion miles of solar panels. That's not that impressive.
E: Would a solar flare screw this thing up and like totally trash it?
S: Oh yeah. I mean, solar flares are nasty. Especially up high, totally outside of the magnetic field of the Earth—
B: Magnetosphere.
S: —wouldn't be any protection.
E: Would you want your multi-trillion dollar investment up there floating and being exposed to—
R: Yeah, but what are the chances of a solar flare actually smacking it?
S: It'll happen on a regular basis.
B: Well, how—Steve, I don't think it'll be as bad as you think; I mean, how are geosynchronous satellites handling them now?
S: Yeah, I mean, so it would have to be taken into consideration; it would have to be built to tolerances so that—
B: Right. Absolutely.
S: —the electronics wouldn't get fried every time there's a solar flare.
B: Right, and you could also determine when one is coming and shut down key electronics. They shut down satellites a lot for stuff like this and they might be able to do the same thing for this kind of technology.
S: Right. Well, interesting; I think this is something that we will see eventually, but I don't think it's going to be anything any time in the near future.
Green Our Vaccines Rally in DC (14:07)
- scienceblogs.com/insolence/OpenLetterFinal.pdf
www.safevaccines.org/press-080527.htm
www.sciencebasedmedicine.org/?p=9
abcnews.go.com/GMA/OnCall/story?id=4987758
New Zealand CAM Follow up (24:10)
Questions and E-mails (25:16)
Cold Fusion
I just stumbled upon an article online that seems to ridicule the idea of cold fusion as supposedly described in this article physicsworld.com/blog/2008/05/coldfusion_demonstration_a_suc_1.html, along with the likes of perpetual motion machines. I understand why a perpetual motion machine can't theoretically be possible could you please explain if cold fusion is as unlikely to be possible.
Sam Spreull
Brighton, UK
Interview with Walter Isaacson (34:39)
- Author of Einstein
www.simonsays.com/content/destination.cfm?tab=1&pid=349181
Science or Fiction (1:06:24)
Question #1: New study shows that we pick our friends based largely on similarity of physical appearance. Question #2: Playing golf prolongs life expectancy by an average of 5 years. Question #3: New research shows that when it comes to collective traumatic events, like terrorists attacks, it is psychologically healthy to keep feelings inside rather than discussing them with others.
Quote of the Week (1:16:04)
'A popular feel for scientific endeavors should, if possible, be restored given the needs of the twenty-first century. This does not mean that every literature major should take a watered-down physics course or that a corporate lawyer should stay abreast of quantum mechanics. Rather, it means that an appreciation for the methods of science is a useful asset for a responsible citizenry. What science teaches us, very significantly, is the correlation between factual evidence and general theories, something well illustrated in Einstein's life.'- Walter Isaacson
S: The Skeptics' Guide to the Universe is produced by the New England Skeptical Society in association with the James Randi Educational Foundation and skepchick.org. For more information on this and other episodes, please visit our website at www.theskepticsguide.org. For questions, suggestions, and other feedback, please use the "Contact Us" form on the website, or send an email to info@theskepticsguide.org. If you enjoyed this episode, then please help us spread the word by voting for us on Digg, or leaving us a review on iTunes. You can find links to these sites and others through our homepage. 'Theorem' is produced by Kineto, and is used with permission.
References