/u/donaldhobson's posts in /r/askscience

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I noticed that if I blew up a balloon, (clamping the end with a cloths-peg) and left it in a freezer for a few minutes, then deflated it, I got a substance that contracted on body heat.

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I noticed that if I blew up a balloon, (clamping the end with a cloths-peg) and left it in a freezer for a few minutes, then deflated it, I got a substance that contracted on body heat. Is this a known and used phenomena?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
I noticed that if I blew up a balloon, (clamping the end with a cloths-peg) and left it in a freezer for a few minutes, then deflated it, I got a substance that contracted on body heat.	1
I noticed that if I blew up a balloon, (clamping the end with a cloths-peg) and left it in a freezer for a few minutes, then deflated it, I got a substance that contracted on body heat. Is this a known and used phenomena?	1