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Sleep Story 257 - Rubber Hand Stamps

Bore You To Sleep - Sleep Stories for Adults

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The Effects of Temperature on India Rubber

Pure unvulcanised India rubber is considered imperfectly elastic. When pressed or stretched it may change shape to a great extent, but hardly change its volume at all. A cube of 2.5 inches under a weight of 200 tons lost 1-10% of its volume only. If the temperature is reduced to the freezing point of water, a piece of raw India rubber becomes rigid and stiff. On application of heat it returns to its former pliable condition.

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