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TIL the first fax machine was introduced in 1865, 11 years before the telephone

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vPYQr TIL Many formulas exist for Wind Chill. The current one was only implemented in 2001. It is calculated for a bare face, facing the wind, while walking into it at 5.0 km/h/3.1 mph. It corrects the officially measured wind speed to the wind speed at face height, assuming the person is in an open field
8ZDK TIL there is a hero in the DC Universe known as Dogwelder, whose superpower is welding dogs to people.
DLOJ TIL that in WWI even though the officers knew that at 11 am there was a cease fire areement, they kept on sending troops into no-mans land and shelling the enemy lines, right up to 10:59 am. About 2,000 people died with only hours left of fighting.
E10bo TIL that pizza boxes are only recycleable if the grease and oil stained portions are removed; otherwise, the oily contaminants ruin the entire batch of paper fibers.
Wdk8 TIL Bill Paxton and Lance Henriksen share the distinction of being the only actors to have been killed by an Alien, a Predator and a Terminator.