A group of MIT students have been working on a solar grill that uses a Fresnel lens and solar energy to melt down a container of Lithium Nitrate, which is like a battery storing thermal energy for 25 hours. The heat created at temperatures above 450 degrees Fahrenheit is used for convection cooking outdoors.
There is a model for yuppies too!
Nice Photoshop work on that Yuppie version but still it's a damn good idea!!
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