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How does a light bulb turn electricity into light?

The Glowing Argument
How does a light bulb turn electricity into light?
~~Flip a switch~~, and a room full of dark becomes a room full of light. It feels like magic — but it's actually **a tin

Flip a switch, and a room full of dark becomes a room full of light. It feels like magic — but it's actually a tiny, glowing argument happening inside a glass bulb. Let's go meet the troublemaker.

First, the cast of characters: electrons. They're impossibly small bits of electricity, and a wire is absolutely packed with them, like a hallway crammed with people. When you flip the switch, you give them all one order: move.

How was this book?