Technology
Powdered metal: The fuel of the future
The clean, green car of the future will cruise the highway on a tankful of powdered metal 鈥� welcome to the new Iron Age
Features
Technology
Hot new fuel for nuclear reactors
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Technology
Hydrogen generator could power electronic gadgets
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Earth
Clean energy special: Eastern promise
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Earth
Clean energy special: A greener goal for coal
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Earth
Clean energy special: The big clean-up
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Earth
Coal-powered fuel cell aims for efficiency
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Technology
What if聟 Electric motors pre-dated steam engines
Features
Space
‘Antimatter harvester’ may fuel future spacecraft
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Earth
The filthy truth about diesel ‘mules’
With almost as many on the road as cars and trucks, is it time to clean up China's rural three-wheeled vehicles?
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Squeaky clean fossil fuels
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Technology
Fuel cell squeezes more from petrol
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Earth
Hydroelectric power’s dirty secret revealed
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Earth
European trading in carbon-emission permits begins
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