A #medieval surgeon used 3 rivets to attach a copper plate over a deep wound on a man's upper sword/axe arm – so su… https://t.co/wsScSr2DUR
RT @70sBachchan: In 1979, Carter tasked Natl Acad of Sciences to investigate consequences of sharply ↑ CO2 seen in Keeling's
RT @70sBachchan: In 1979, Carter tasked Natl Acad of Sciences to investigate consequences of sharply ↑ CO2 seen in Keeling's Curve. MIT's t…