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Moon car
Went to Hunsville Alabama Rocket Center and found this moon car ( rather SUV)
http://img405.imageshack.us/img405/7137/img0928r.jpg |
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Turn signals? Those people must know something about the moon that we don't!
*goes paranoid* |
I was hoping for light weight, electric drive, a wheel + tire substitute made of wire, etc. What is this vehicle for? It doesn't look like it's particularly suited for anything.
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Wouldn't work on the moon, the tires would explode (hence the wire wheels on the actual moon car).
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Why would they explode? Just take one atmosphere (100kPa / 15psi) of pressure out of your tires before you hit the lunar surface.
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I could swear I remember something on the History channel about NASA having to develop the wire tires to counteract the tires exploding from the lack of pressure.
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I don't know about turn signals or pneumatic tyres, but a 'moon car' is certainly not going to need windscreen wipers.
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For the tires, the air pressure wouldn't be a problem, of course, but the rubber would have to handle surface temps of 200-250 degrees in a vacuum. I don't know enough about rubber chemistry to know how much of a problem it would be. I think the main reason the Apollo lunar buggies used metal tires was to keep the weight down, though. |
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