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| Hey, have you seen this article about materials that don't expand under heat? | |
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| Wow! I wonder how that is done. | |
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| It said that contracting objects such as a clock can counteract it expansion when the heat is on. | |
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| Ohhh.. and the vibration causes atoms to move apart and the material to expand. | |
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| Well, When you heat a solid, most of the heat goes into the vibrations of the atoms. | |
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