Because the crystal bends light much more strongly than air does, light should have bounced off the holes and traveled down a channel that had been left clear of holes.

由于晶体比空气更能弯曲光线，光会从小孔上反射回来，从而沿着没有小孔的通道传播。

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Because light traveling down from a summit passes through many such layers, a surveyor could sight a mirage rather than the peak itself.

因为从山顶向下传播的光会穿过许多这样的层，所以测量员看到的可能是海市蜃楼而不是山峰本身。

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When I looked out into the backyard, I could see a spotlight hanging down from a tree. Under the light, I could see that my husband had set up a table saw.

我朝后院望去，看到一个聚光灯从树上垂下来，我丈夫在灯下摆了一架台锯。

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After the show, which both School Reporters enjoyed, it was back into reporting mode as they tracked down world light-welterweight champion Amir Khan and world heptathlon champion Jessica Ennis for further interviews.

BBC: School Report goes backstage at Sports Personality

The arcade is stocked with multiplayer sit-down driving games and stand-up light gun games, as well as Sonic air hockey tables, as well as traditional boardwalk games like skee ball.

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That might be about to change, though, as South Korea's state-owned Korea Electronics Technology Institute has announced a new image sensor chip that promises to take "vibrant photos" in extreme low-light conditions -- all the way down to 1 lux, which is the equivalent light output of a candle shining one meter away.

ENGADGET: South Korean image-sensing chip enables 1-lux photography