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TIL that used diapers can replace up to 8% of sand used in concrete and mortar for a small, single-story building

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R5m7l TIL the number of millionaires in the US is 22 million, or 8.5% of adult population
Ooeke TIL that immediately after the murder of Israeli athletes at the 1972 Munich Olympics, the German chancellor mandated that all participant nations fly their flags at half-mast. Ten Arab nations objected to their flags being lowered to honour murdered Israelis, and so they were restored to full-mast.
ADOyw TIL that famed Sci-Fi author Isaac Asimov died of AIDS contracted during a blood transfusion.
PYGKw TIL of the word defenestrate, which means to throw (something or someone) out of the window
D1NEJ TIL Norway leads the world in commercial whaling, hunting hundreds more than Japan per year despite its much smaller population.