Journal arbitraryaardvark's Journal: Solar engine breakthrough by inventor of supersoaker.
Popular Mechanics writes that Lonnie Johnson, a former NASA scientist who got rich from inventing the supersoaker squirt gun, has invented a new kind of device for turning heat into electricity, at up to 60% efficiency.
The device involves passing hydrogen through membranes, taking advantage of pressure differentials between the hot and cold ends.
A solar collector could provide the heat source.
For some background here's a 2001 New York Times story on the guy.
Solar engine breakthrough by inventor of supersoaker. More Login
Solar engine breakthrough by inventor of supersoaker.
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