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Post by gillianren on Sept 2, 2008 19:25:17 GMT -4
Wow. My brain hurts.
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Post by grashtel on Sept 2, 2008 20:12:02 GMT -4
(Just to give the flavor....his argument is that the air on Earth provides enough buoyancy to largely counter-act the gravitational pull. On the Moon, without the benefit of atmosphere, the astronauts would have been forced to the ground by the crushing force of lunar gravity. I kid you not.) So how does he explain that stuff in vacuum chambers doesn't show the fact that gravity is much stronger than it is supposed to be? (Is it wrong to want to figure out how to launch half bricks through the internet at people that dumb?)
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Post by frenat on Sept 2, 2008 20:35:48 GMT -4
Is that Punisher on GLP? I haven't seen his threads lately.
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Post by gillianren on Sept 2, 2008 20:51:04 GMT -4
(Is it wrong to want to figure out how to launch half bricks through the internet at people that dumb?) If it's wrong, I don't want to be right.
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Post by PhantomWolf on Sept 2, 2008 21:53:00 GMT -4
He has never let colossal failure stand in his way before. He's never let his total lack of the understanding of physics get in his way either, in fact last time I got the distinct impression that he simply made up his physics on the spot.
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vq
Earth
What time is it again?
Posts: 129
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Post by vq on Sept 3, 2008 1:02:53 GMT -4
OMG... now this guy is actually suggesting that, in order to fake the footage and to simulate 1/6 gravity, they filled a soundstage (uses the therm "environment") with helium... Oh, and then there's the whole part of his argument where he doesn't have to supply answers to his questions, we just have to believe he's right since he's worked on dune-buggies and cars in the desert.... Cz He might have spent too much time in the desert. But wait! He was wrong about Helium, but maybe another fluid could be used around an astronaut to simulate microgravity... something with a density close to that of a person... I've got it! Water! What? NASA already does that? They started doing that before the moon landings?? More proof of a massive NASA conspiracy!
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Post by brotherofthemoon on Sept 3, 2008 7:40:00 GMT -4
Perhaps someone should tell Jon_Death that if the "Moon set" really was filled with helium, the dust would be billowing up behind the rover, instead of falling in parabolic arches. Not only does helium have anti-gravity powers, it can also simulate a vacuum.
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Post by Mr Gorsky on Sept 6, 2008 17:51:02 GMT -4
In the very unlikely event of taking an F1 up there, if they manage to start the engine, the only thing that could happen is a mad spinning of the wheels and no movement at all. No air, no downforce; 1/6 gravity, not enough mechanical grip. The guy waving the checkered flag at the Finish line will be very bored. Well, surely, a F1 car on the earth also has no downforce when sitting stationary on the starting line, and yet they somehow manage to get started. I was under the impression that the downforce issue on an F1 car was to do with high speed stability on the straight and grip through the corners, not to get the car even to move off the starting line.
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Al Johnston
"Cheer up!" they said, "It could be worse!" So I did, and it was.
Posts: 1,453
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Post by Al Johnston on Sept 6, 2008 18:25:41 GMT -4
True, but rubber gets better grip on tarmac than regolith.
And, as another poster pointed out, the F1 car would likely be resting on its floorpan rather than its wheels if placed on the uneven surface of the Moon... ;D
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Post by smlbstcbr on Sept 6, 2008 18:25:57 GMT -4
In the very unlikely event of taking an F1 up there, if they manage to start the engine, the only thing that could happen is a mad spinning of the wheels and no movement at all. No air, no downforce; 1/6 gravity, not enough mechanical grip. The guy waving the checkered flag at the Finish line will be very bored. Well, surely, a F1 car on the earth also has no downforce when sitting stationary on the starting line, and yet they somehow manage to get started. I was under the impression that the downforce issue on an F1 car was to do with high speed stability on the straight and grip through the corners, not to get the car even to move off the starting line. It is a combination of both, downforce and weight. For the start (the most critical part of the race) the weight of the cars and the temperature of the wheels are the most important factors to get the car moving. I believe that at about 120 kmph (first gear , or the first three seconds) the downforce of all the aeropack is enough to double the weight. Considering that the moon has dust all over, the mechanical grip required to start moving is not present.
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Post by Czero 101 on Sept 20, 2008 12:54:16 GMT -4
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Post by alex04 on Sept 24, 2008 7:42:14 GMT -4
"Gravitational Drag" Yes folks, apparently gravity has much the same effects as air resistance does. Don't believe me? There's someone on the IMDB board for Mythbusters who keeps insisting that the LRV should have been capable of speeds of up to 90 miles per hour because the lack of "gravitational drag" on the Moon. Basically, anything should be capable of traveling six times faster on the Moon because it has one-sixth the surface gravity of the Earth. The poster's name is "Jon_Death," and the board is here (you might have to register to read it, though): us.imdb.com/title/tt0383126/board/threads/tell the guy i think he's an absolute legend. So if i could land a lunar rover on an asteroid (with say, several thousanths of a G), hmm ... think of the theoretical speeds i could attain!
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Jason
Pluto
May all your hits be crits
Posts: 5,579
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Post by Jason on Sept 24, 2008 11:43:42 GMT -4
Hey, since there's no gravity in deep space there would be even less gravity drag. You could get to ludicrous speed in your winnebago! You might even go plaid!
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Al Johnston
"Cheer up!" they said, "It could be worse!" So I did, and it was.
Posts: 1,453
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Post by Al Johnston on Sept 24, 2008 11:59:28 GMT -4
Just don't go over Dark Helmet...
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Post by alex04 on Sept 25, 2008 4:42:39 GMT -4
Always remember, the evil govt. shills will always triumph....
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