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Coffee Poster

Coffee Poster

$2.50

Did you know you can holler at your coffee to warm it up? There's energy stored in your spoken sound waves, so yelling at your coffee could theoretically heat your coffee. You might miss out on beating rush hour, however. Discover the answer to this question at PhysicsCentral.com - your source for physics fun.  Poster size is 24 inches by 18 inches. This item qualifies for free shipping.


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