HOW TO – Make a Test Tube Stirling Engine

Photo10 ESouthpaw writes “After reading the Dean Kamen (MAKE 04) article I wanted to learn more about stirling engines and stumbled upon this site which shows you how to build your own…out of marbles! Also of note is the NMRI homepage which shows off the firm’s 400m long tow tank and 35m long Ice basin (under “main facilities”).” Link.


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