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• n  a form of energy that is transferred by a difference in temperature

• heat

News & Articles

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• New thermoelectronic generator
  Through a process known as thermionic conversion, heat energy -- such as light from the sun or heat from burned fossil fuels -- can be converted into electricity with very high efficiency. read more        
  Dec. 4, 2013 - TG Daily
• New thermoelectronic generator: Heat energy efficiently converted to electricity
  Through a process known as thermionic conversion, heat energy can be converted into electricity with very high efficiency. Because of its promise, researchers have been trying for more than half a century to develop a practical thermionic generator, with little luck. That luck may soon change, thanks to a new design -- dubbed a thermoelectronic generator.
  Dec. 3, 2013 - Science Daily