How do telephones work?

June 12, 2008 at 11:09 pm Leave a comment

When you talk into the phone, a metallic or plastic piece wiggles (not the cartoon). The electrode turns the wiggles into electricity that goes into a wire. At the other end it turns it from electricity to words.

Entry filed under: How Things Work. Tags: .

Why do they call them dreadlocks? Why is water blue in the ocean or in a pool, but clear when it’s on you?

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