+1Commercially made heated clothing / heat pads /heated blankets normally use resistance wire woven into fabric designed to diffuse the heat safely, avoiding excessive hot spots.
Actually they get very hot, then cools as it crystallizes, good for 4 hours. I had some a long while back, but my kids played with them to death, in the freezer. At least the freezer survived.Actually, now that I think about it, I bet you'd be much happier with a reusable hot pack. They look sort of like breast implants and contain supersaturated sodium acetate, I think, that holds a constant warm temp as it all crystallizes. You recharge them in hot water, and they stay liquid until you snap a little clicker to initiate the crystallization. Very nice.
Good grief, this is for school? You should have said so. To get any useful help, you should specify the constraints (money, time, design goals, etc. etc.) AND, most importantly, discuss your own ideas and interests, and work you've already done.can anyone suggest me for a thesis proposal? please?
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by Jake Hertz
by Luke James