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TiL: Being able to speak more than one language helps slow down early-onset dementia and Alzheimer’s Disease

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7r9gX TIL Hydrogen-alpha filters used for looking at the sun transmit only one specific wavelength of light: a deep red light emitted by hydrogen atoms of the sun. H-alpha filters are much more expensive than white light filters. The least expensive ones start at about $700
69wbX TIL that eight years before becoming head coach of Indiana University's football team, Curt Cignetti was head coach of the Indiana University of Pennsylvania's football team
4kMrX TIL: Combination weapons such as a Gun-Axe, Mace-Pistol, or Pistol-Falchion were real and date back hundreds of years. In the 1500s -1800s since guns only fired one shot, they attached them to various weapons such as the German Axe-Pistol. In some cases they attached a gun to a shield.
loyL7 TIL that Guy Fawkes was hung, gutted and tortured for his plans. He was caught red handed after an anonymous tip off leading to his torture, which revealed co-conspirators. This was followed up by execution and his body parts paraded around London.
DQ85e TIL one of the reasons the nature of Greek fire has been lost to time is the Byzantines' compartmentalized the production, similar to modern top secret weapons development (such as the Manhattan Project).