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0:58
PHYSICS-SOUND: Lesson 7- CLOUD.LIGHTING BOLT.FLASH OF LIGHT.THUNDER (2/2) In the previous lesson we discovered what a lightning bolt and a flash of lightning are. But one question remained: What exactly is thunder? When millions and millions of free electrons move at the same time, a lightning bolt is produced. This phenomenon releases an enormous amount of energy. The air surrounding the lightning bolt can reach about 30,000 degrees in a fraction of a second. To give an idea of how extreme this
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