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Q & A: Microwave Ovens

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Q:
What is Electromagnetic oven?
- Tran Long Sai (age 25)
Viet Nam
A:
If you are talking about microwave ovens, those heat up food using microwave electromagnetic waves. The microwave electric fields cause the charged particles in the water molecules (the hydrogen is somewhat positive, the oxygen somewhat negative) to wiggle back and forth, heating it up.

(published on 10/22/2007)

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