cacs.org

AN5dw TIL Lightning can trigger nuclear reactions. The energy from a lightning bolt can create isotopes like carbon-14 in the atmosphere
epjx4 TIL: Gerhard Schrader created Preparation 9/91, an insecticide, for his employers. However, it was too effective and killed users leading to his employers to say he failed. The, however, impressed the Third Reich and he was hired for $20,000 to develop it into Sarin gas as modern poisons took hours.
l7Zpr TIL metal or blood by itself doesn't have a smell. The "metallic" smell of blood is instead derived from Fe2+ (iron) ions in metal/blood which react with fatty acids in sweat, forming 1-octen-3-one, which gives the characteristic "metallic" smell of metals and blood.