The brain, too, sends out brain waves of electricity, which can be recorded in an electroencephalogram.

大脑也发出脑电波，这可在脑电图上记录下来。

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The brain, too, sends out brain waves of electricity, which can be recorded in an electroencephalogram.

脑电波记录表明，在大脑的高层思维中心，脑电波特别活跃。

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Scientists from Korea have turned the main ingredient of calamine lotion into a tiny material that converts sound waves into electricity.

韩国科学家将炉甘石洗液的主要成分转化成一种微细的材料，这种材料能够将声波转化成电能。

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Thanks to advances in software, a new generation of startups like Columbia Power are cheaply and quickly testing hundreds of new designs in virtual oceans while veterans of the industry are perfecting their technology to wring more energy from waves and lower the cost of electricity.

FORBES: The Next Wave In Renewable Energy From the Ocean

These methods convert ambient energy in the forms of light, vibration, heat, radio waves and so forth into electricity.

FORBES: Wanted Dead or Alive: Humans for Energy Harvesting