Jessica Matthews and Julia Silverman hope their sOccket ball will shine more light on the problem of power shortages.

杰西卡·马修斯和茱莉亚·西尔弗曼希望她们的发电足球能给电力短缺问题带来更多希望。

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Forty percent of that powers old-fashioned incandescent light bulbs—a 19th-century technology that wastes most of the power it consumes on unwanted heat.

其中40%的电能用于老式白炽灯——这是19世纪的一项技术，它所消耗的大部分电能都浪费在制造多余的热量上。

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But there is still no lithium battery light enough to power a small electric car over a reasonable distance on a single charge.

但是仍没有轻易做到一次充电能为一辆小型电动车通过一段合理的道路提供电力的锂电池。

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We need another Pecora Commission, another Fulbright Committee, another Sam Ervin to use the power of Congress to shed light on the causes of our current economic meltdown.

CNN: Commentary: Investigate Wall Street

The BMW ActiveHybrid 3 can drive solely on electric power under light throttle at speeds up to 37 mph in Comfort mode and up to 47 mph in Eco Pro.

FORBES: BMW ActiveHybrid 3 Review: A Lot Of Fun On Slightly Less Fuel

This week, the Internet puts its power on display, of both the light and dark variety.

FORBES: Did Anonymous Undo The Goodwill Built Up By 'The Internet' This Week?