› added 5 years ago

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TIL about Vacuum Airships which are a hypothetical type of airship which would use a vacuum instead of gas filled balloons to generate lift.

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kv45 TIL of “Japan’s hardest test”, the Kendo 8th dan Judgement Test. Held twice each year, less than 1% ever pass. Out of ~200 million Kendo swordsmen in the country, less than 400 have achieved 8th dan.
E1lWx TIL: There is a city in the United States called "Truth or Consequences". It's in New Mexico, and 6,000+ people live there.
0rxN TIL That the Waffen SS had a unit made up of murders, rapists and the criminally insane that was led by a convicted paedophile.
JYZy1 TIL A special 90mm solar telescope can show thousands of small (by solar standards) columns of hydrogen plasma in profile at the edge of the Sun. These short-lived features, as long as the diameter of the Earth, merge together to give the Sun’s edge a ‘furry’ appearance
OGLAa TIL The word "quarantine" comes from a 14th-century practice in the Venetian Republic, where ships had to isolate for 40 days to prevent the spread of the plague, leading to the term "quarantine" from the Italian "quaranta giorni" (40 days).