在18世纪,人们还不能正确地认识雷电到底是什么。当时本杰明·富兰克林认为雷电是一种放电现象,它和在实验室产生的电在本质上是一样的。但却受到了嘲笑。富兰克林决心用事实来证明一切。1752年6月的一天,阴云密布,电闪雷鸣,一场暴风雨就要来临了。富兰克林和他的儿子威廉一道,带着上面装有一根金属杆的风筝来到一个空旷地带。富兰克林和他的儿子一道拉着风 In the 18th century, people still can not correctly understand what lightning is exactly. Benjamin Franklin at the time considered lightning to be a discharge phenomenon that was essentially the same as the electricity generated in the laboratory. But it was ridiculed. Franklin is determined to prove everything by facts. One day in June 1752, overcast, thunder and lightning, a storm is coming. Franklin, along with his son William, came to an open area with a kite on top of a metal pole. Franklin and his son took the wind