Weather & Physics
Why Does Lightning Happen?
Lightning happens when electrical charges separate inside storm clouds and the voltage difference becomes large enough to discharge as a massive spark.
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Human Body
Why Does the Human Body Produce Electricity?
Your body is running on electricity right now. Every thought, heartbeat, and muscle twitch is powered by tiny electrical signals your cells fire constantly.
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Energy
How Do Solar Panels Work?
Solar panels turn sunlight into electricity with no moving parts. Learn how photons, silicon cells, electrons and inverters make rooftop solar work.
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A giant electrical spark
What Is Lightning?
Lightning is a massive electrical discharge caused by charge buildup in storm clouds. Here is why it happens, where it goes, and why thunder follows.
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