Thread: Hydrogen Fuel
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Old 08-02-2013, 10:13 AM   #6
Spexxvet
Makes some feel uncomfortable
 
Join Date: Dec 2005
Posts: 10,346
Quote:
Originally Posted by Flint View Post
Apparently ancient civilizations in South America were able to concentrate sunlight into beams hot enough to cut blocks of stone to a mirror finish.

I don't know what that has to do with this, exactly, but people have always been very good imagining solutions to engineering problems.
That was done by ancient aliens
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