› added 8 years ago

273

TIL Nude hiking is not allowed in Appenzell, Switzerland. If caught, nude hikers can be fined for practicing "immoral habits".

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LaNZ TIL that only one person signed all four major American founding documents (the Continental Association, the Declaration of Independence, the Articles of Confederation and the Constitution): Connecticut Senator Roger Sherman.
78VJP TIL that humans have evolved to act more selflessly when being watched. This will happens even when you are alone but can see a depiction of two eyes.
R5LM1 TIL a "jiffy" is an actual unit of time. It refers to the time it takes for light to travel one centimeter in a vacuum, approximately 33.3564 picoseconds, highlighting the quirky side of physics.
KY89B TIL that the genetic traits that helped people survive the Black Death in the 14th century are linked to autoimmune diseases like Crohn's disease today, showing how a historical pandemic shaped the evolution of human immunity genes.
j6OWQ TIL that two amateur Canadian inventors - medical student Henry Woodward and hotelier Mathew Evans - patented the first electric light bulb in 1874. Unable to secure financial backing, they sold their patent to Thomas Edison, who demonstrated an improved electric light to fanfare five years later.