If you are in a dark room with a candle, a wood stove and a gas lamp. You only have one match, so what do you light first?
你呆在一间漆黑的屋子里，屋里有一支蜡烛、一个柴炉和一盏煤气灯。如果你手里只有一根火柴，你会先点亮什么？
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。
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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