Promising New Material Could Improve Gas Mileage

With gasoline at high prices, it's disheartening to know that up to three-quarters of the potential energy you are paying for is wasted. Now a Northwestern University-led research team has identified a promising new material that could transform a technology that currently cools and heats car seats -- thermoelectrics -- into one that also efficiently converts waste heat into electricity to help power the car and improve gas mileage.

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