A thundercloud turns itself into a spark big enough to light up the sky and crack the air. This short course explains how a storm separates electric charge, what actually happens in the split second of a strike (and why the channel gets hotter than the Sun's surface), why thunder follows the flash and how to read the gap for distance, and the safety facts and myths worth knowing.
A thundercloud turns itself into a spark big enough to light up the sky and crack the air. This short course explains how a storm separates electric charge, what actually happens in the split second of a strike (and why the channel gets hotter than the Sun's surface), why thunder follows the flash and how to read the gap for distance, and the safety facts and myths worth knowing.
