www.greenpowerscience.com GREEN POWER SCIENCE STIRLING ENGINE AND A FRESNEL LENS 1800 RPMS. HAD TO STOP AS ENGINE HEAT SHAFT WAS GETTING TOO HOT.

(may be broke/outdated!)
www.greenpowerscience.com GREEN POWER SCIENCE STIRLING ENGINE AND A FRESNEL LENS 1800 RPMS. HAD TO STOP AS ENGINE HEAT SHAFT WAS GETTING TOO HOT.