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Also: it si F=m*v, not F=m*a. If I accelerate with my car from 100 meter away and hit you with 50 mp/h you are just as hurt as if i hit you with 50 mp/h starting 1000 m away from you.
Originally posted by susan 1963
its their moon and they can mine if they want to
apparently
On the mining-thing. I can only state that in the broadest of senses mining operations have taken place on the lunar surface and are presently being conducted on Mars. Although the use of terminology, 'mining' has been downplayed (by NASA) and there exists an 'internal memo', iin NASA that 'recommends' non-reference to the terms, 'mining, micro-mining'> ...
snipped
Use of terminology, e.g., 'mining', could be considered (by some countries) to constitute a violation of the International Space Treaty. Thus, NASA is real-careful about use of terminology that could be considered a breach of 'Policy and Protocol'. I can give you this stuff as it's 'public information'. You have to look between the spaces/lines for more info and draw your own conclusions.
Originally posted by sinthia
Anyway, I don't care. I've just bought loads of acres on the moon, and if they hit one of my bits, i'll sue their ass.
Originally posted by getreadyalready
reply to post by debunky
Also: it si F=m*v, not F=m*a. If I accelerate with my car from 100 meter away and hit you with 50 mp/h you are just as hurt as if i hit you with 50 mp/h starting 1000 m away from you.
Force is m*a. You are confusing it with momentum, which is m*v.
Edit: An object moving with a constant speed has zero acceleration. (Technically it has whatever acceleration counteracts drag and gravity.)
Your vehicle travelling 50 mph will have the same momentum either way, and will cause the same force either way, the acceleration refers to the thing you hit. It will be 'accelerated' according to it's own mass, and the energy you tranfer to it on impact. In your example we know the mometum your car is carrying, and we know my mass, so we can find the acceleration you will give me.
Kinetic weapons are pretty wild. Think of an AK47 bullet. It has about 10% of the mass of a 12 guage slug, but it causes much more damage because of its velocity! (A surprise to me at the gun range, Shotgun=broken watermelon, AK=disintegrated pink cloud!!!)
[edit on 19-6-2009 by getreadyalready]
Originally posted by Truth4hire
This is just swell...
It wasn´t enough we were told to stay the hell away from the Moon.
Noooo. We now have to send a missile into the surface to collect samples.
A certain professor, who wished to remain anonymous, was engaged in a discussion with Neil Armstrong during a NASA symposium.
Professor: What REALLY happened out there with Apollo 11? Armstrong: It was incredible, of course we had always known there was a possibility - the fact is, we were warned off! There was never any question then of a space station or a moon city. Professor: How do you mean "warned off"? Armstrong: I can't go into details, except to say that their ships were far superior to ours both in size and technology - Boy, were they big!...and menacing! No, there is no question of a space station.
Originally posted by Raider of Truth
reply to post by 0010110011101
if there are aliens up there the dumb yanks just sparked a galactic incident!
Originally posted by Alien Mind
You know i was thinkin, If there is a "Alien Moon Base" up there and we go bomb it, wouldn't that make the aliens want to attack us?
Alien Mind
Originally posted by zorgon
You bought a pretty piece of paper... it has no legal status
Originally posted by BaronVonGodzilla
How do you know whether the paper is pretty or not? You have no science to base that on. Your scientifics offend me.
Originally posted by spikedmilk
going out on a limb here, i dont normally discuss my dreams with anyone other than my wife. but this seems too coincidental...
About 2 weeks ago I had a dream the moon exploded. Maybe not so much exploded but the left side (our left) was blown off.
...when the first man made lunar touch down was done, the moon it resonated for hours , litteraly shaking from the strain it was put under by the lunar lander.