This is super cool — a preserved graphite block, with uranium fuel, from the first nuclear reactor, Chicago Pile 1. https://www.youtube.com/watch?v=1Es4_tz7_7E …
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@wellerstein I have a tiny souvenir piece of the graphite.
@cherylrofer I have heard of smaller pieces being preserved but I only recently learned from a friend about this entire, loaded block.
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@wellerstein Yes - that is really something!Thanks. Twitter will use this to make your timeline better. UndoUndo
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