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Nokia hopes to create a device that could harvest enough power to keep a cell phone topped up.
A study finds problems, but also offers software fixes that could help cell phones last significantly longer between charges.
Novel engine designs could help meet our growing demand for energy.
Some observers are alarmed that the federally backed battery maker A123 Systems could soon be owned by the Chinese. But did the company have a choice?
Attacks on the wisdom of loan guarantees could restrict nuclear reactor construction in most states.
Battery draws power from salinity difference between freshwater and saltwater.
Battery breakthroughs could lower costs and improve performance for electric vehicles and renewable energy storage–but commercializing these new technologies will be challenging.
A method for printing exotic semiconductors brings down the cost of high-performance solar cells and microchips.
Chips that let errors happen, then correct them, use less power overall.
Carbon dioxide captured from power plants could make geothermal energy more practical.