Turning back to the mirror, Jenny saw a flash of light from the watch in the glass.

回头照镜子， 珍妮发现手表发出了一束光。

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Leonardo was obsessed with problems like how to create translucent effects in painting, how to capture the mysteries of light - the very problems posed by painting a glass sphere.

达·芬奇沉迷于像如何在画中营造半透明效果、如何展现光的奥秘——这正是画一个玻璃球要面对的问题。

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An incandescent bulb, made of a wire filament encased in glass, emits only 5% of the energy it consumes as light; the rest is wasted as heat.

由灯丝封装在玻璃里而制成白炽灯，只有5%的能量被用于发光；其余都以热能被浪费掉了。

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The four levels of rooms center on a beautiful courtyard with a glass ceiling to let light shine in.

VOA: special.2009.01.11

The bending creates a lensing effect in the same way that light is bent through glass or plastic in a microscope or your eyeglasses.

FORBES: Hubble Telescope Observes Matter Falling Into Black Hole

Vaguely diverted by the break in routine, that evening he walked on the brick-paved front driveway instead, looping around the circular lawn and through a carport in which a misplaced glass chandelier cast a friendly yellow light.

NEWYORKER: In Other Rooms, Other Wonders

Kindle Fire HD solves this air gap problem by laminating the touch sensor and the LCD together into a single layer of glass, creating a display that's easy to view even in overhead light, and reducing glare by 25% relative to iPad 3.

ENGADGET: Kindle Paperwhite and two Fires up for pre-order in Japan, Kindle Store opens there tomorrow