xkcd feeds.twtxt.net Sun, Nov 26 22:00 (24w ago) Decay Modes Unlike an Iron Age collapse, a Bronze Age collapse releases energy, since copper and tin are past the iron peak on the curve of binding energy. DownloadUnlike an Iron Age collapse, a Bronze Age collapse releases energy, since copper and tin are past the iron peak on the curve of binding energy. ⌘ Read more ⤋ Read More Yarn