Why do strings curl up under fire?
In: 3
As materials get heated they expand, but the whole object doesn’t have to expand at the same rate. If one side is getting heated more than the other (is next to a fire while the other is not) that side will expand faster, creating a curl.
not just expansion, there’s contraction too.
as proteins in the cotton/wool/silk or even plastic (most plastic is ‘organic’ like chains which is why micro plastics found in food and now blood streams are alarming) as these proteins are destroyed by the heat the chains tighten up just like a muscle contraction. since one side heats fast/more than the other, and/or presence of non chain material things just shrivel and wither
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