By changing the structure of such a crystal slightly, using an electric charge, the colour of the light reflected by that crystal will change too.

依靠轻微得改变晶体的结构，利用电流的改变，当晶体改变时，光的颜色也会相应改变。

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The invention of the incandescent light bulb by Thomas A. Edison in 1879 created a demand for a cheap, readily available fuel with which to generate large amounts of electric power.

托马斯·爱迪生1879年发明的白炽灯导致对便宜、易得、可生产大量电能的燃料的需求。

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Solar panels generate electricity by converting photons (packets of light energy) into an electric current.

太阳能电池板通过将光子(光的能量包)转化为电流来发电。

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Rockwell created it as an advertisement for a light made by the General Electric company.

VOA: special.2010.09.20

In 1880, Wabash, Indiana became the first town to be completely illuminated by electric light.

CNN: Sunday,

These involved a loud tone followed by a light electric shock to the foot.

BBC: 'Natural' cannabis manages memory

Since there's no physical interface on the device to configure WiFi, the company's developed Blinkup, a way to enter SSID and password information on any iOS and Android smartphone and beam it to the Electric Imp's light sensor by rapidly pulsing the handset's screen on and off.

ENGADGET: Hands-on with the Electric Imp at Maker Faire (video)