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TIL: During WWII, armies deployed Searchlight Units to aide night time movement, detect enemies and dazzle enemies. They were called "Moonlight Batteries". On cloudy nights, the units could bounce the light off clouds to provide diffuse lighting.

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X1P TIL that women who want to enter Canada as a stripper have to provide naked photos of themselves to qualify for a visa.
kO4eB TIL since the Federal Witness Protection Program was started in 1971, not one of the 8,500 witnesses or the 9,900 family members participating has been harmed. According to Gerald Shur, its creator, 95% of those who enter the program are "what we call criminals".
x4E1 TIL there is an native american people who developed a tradition of long-distance running up to 200 miles (320 km) in one session.
d5VB TIL when building the Golden Gate Bridge, the lead structural engineer insisted on the installation of a safety net even though its $130,000 cost was deemed exorbitant. Over the four years of its construction, the net saved 19 men, who named themselves the “Halfway to Hell Club.”
r5v0 TIL that “with no special skill or expertise, Greg Packer has been quoted by media outlets nearly a thousand times… Greg’s campaign to be the most quoted man in news has been so successful that the Associated Press sent its staff a memo that essentially banned interviews with him”