In 1752, Benjamin Franklin tied a key to a kite and flew it in a storm to find out that lightning was a form of electricity.
1752年,本杰明·富兰克林将一把钥匙系在风筝上,在暴风雨中放飞,他发现了闪电是电的一种形式。
The channel is only a few centimeters in diameter, but that is wide enough for electrons to follow the channel to the ground in the visible form of a flash of lightning.
这个通道的直径只有几厘米,但它的宽度足以让电子以闪电这样看得到的形式随着通道到达地面。
In the end it reverted with lightning speed to its old form.
它最终以闪电般的速度退回到其旧有制度。
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