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#3 |
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Join Date: May 2007
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Thought I read somewhere that some bright person figured out (c. 2000) how to make rocket fuel from old truck tires.
While it was very inefficient in terms of specific thrust per unit of mass it was very efficient in terms of specific thrust per unit of money. Should be on line somewhere. |
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| Tags |
| spaceships, spaceships 7 |
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