Because of the great speed of light, we see a lamp light up almost at the exact moment we turn it on.

由于光速极快，我们几乎能在开灯的那一瞬间就看见电灯亮起来。

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A spark discharge between two electrodes produces an "ionised gas tube" in the xenon gas-filled lamp piston through which electric current flows which in turn causes the gas to light up.

在充满氙气的灯柱中的两个电极之间进行火花放电将产生“电离气体管”，电流通过该管流动，从而导致气体发光。

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The great speed of light explained why when we turn on a lamp in a dark room, the lamp and everything else in the room seem to light up at once.

巨大的光速解释了为什么当我们在黑暗的房间里打开电灯时，灯和房间里的一切都似乎立即亮起来。

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But when you crawl into the chair and reach up to turn on the lamp, you make two discoveries: The bulb in the lamp is more suited as a night light than a reading light.

FORBES: SOS... Stamp Out Stupid