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Chips could harvest their own energy using a newly-created alloy
(www.techspot.com)
This is a most excellent place for technology news and articles.
Yeah Linus tech tios has made numerous videos about heating rooms or pools with stuff in his server racks. I think with a lot of heat produced like that the added compelxity is worthwhile especially if the person is somewhat knowledgeable, heck, I see more people going the server rack way more now that self hosting and other open source things are becoming a little more common, at least as far as online people goes.