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Q & A: Rubber - the Hotter, the Tighter !

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Most recent answer: 10/22/2007
Q:
why does rubber and string stretch when heated
- Anonymous
A:
It doesn't! Many things get softer and easier to stretch when they are warmed up, but rubber is curiously different. If you apply heat to a stretched rubber band it will actually shrink. There is a famous demonstration that shows this, pictured .

-Tamara

(published on 10/22/2007)

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