Can you make a bulb light up only with a wire and a cell? Look at some pictures.

仅用一根导线和一节电池能让小灯泡亮起来吗？

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Thursday and Friday, you make a discovery that lights you up like a light bulb.

周四和周五，你会有新发现，它会象灯泡一样点亮你的智慧。

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Move a bar magnet near one or two coils to make a light bulb glow.

在一两枚硬币附近移动磁棒来让灯泡发光。

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He compares this to a battery-powered light, in which you hook up the wires and electrons flow to make a light bulb turn on.

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Does it make sense to ban the old light bulb in a world where we are encouraged to store Terrabytes of pointless photographs forever on fire-hot Web-servers forever spinning in a Google server farm?

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Prof Carroll says his new bulb is cheap to make and he has a "corporate partner" interested in manufacturing the device.

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