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How Fuel Cells Work (3:18)

Fuel cells may soon generate electrical power for all sorts of devices we use every day. Learn more about fuel cells in this video from HowStuffWorks.

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How Fuel Cells Work (3:18)

Fuel cells may soon generate electrical power for all sorts of devices we use every day. Learn more about fuel cells in this video from HowStuffWorks.

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Tired of high gas prices? Osaka-based Genepax has unveiled a car that runs entirely on water. The innovative engine converts any type of water (even tea) into electricity. The car gets about 50 miles on a quart of water.

Discoveries: Compressed Air Car (2:48)

Would you believe there's a new car that runs on air? Learn more about breathing easy in your auto in this video.

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Invention Nation: Vegetable-Oil Engine (3:29)

Watch as this van is converted to a vegetable-oil burning machine. Learn more about alternative fuel in this video.

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Energy Policy: Investing in Biofuels (1:19)

John Hofmeister, President of Shell Oil Corp., discusses potential sources of biofuel. Learn more about biofuels in this video.

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Energy Policy: Developing Ethanol-Based Fuels (1:40)

Clarence P. Cazalot, C.E.O. of Marathon Oil Corp., details his company's stance on ethanol-based fuel. Learn more about ethanol fuel in this video.

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Energy Policy: Creating Cleaner Fuels (1:48)

Clarence P. Cazalot, C.E.O. of Marathon Oil Corp., explains some of the reasons the behind the oil industry's move to create clean, economically friendly fuels. Learn more about alternative fuels in this video.

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