› added 6 months ago

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TIL ILS glide slope indicators work on exactly the same principle as visual approach glide slope lights - two overlapping, but different frequencies of light - it's just invisible for the ILS version

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wogxW TIL that Royal Navy nuclear submarines monitor BBC Radio 4 broadcasts, and if the signal is interrupted, it allegedly indicates the UK is under nuclear attack.
LQgeQ TIL the length of the great wall of China is 21,196 km, earth’s circumference is 40,075 km. so Great Wall of China goes half way around the world if it was in a straight line
Ydw7 TIL a Florida computer repair business incidentally named “CP Distributor” paid $240 for an ad in an coupon book featuring the infamous pedophile meme character “Pedobear.”
QJYVa TIL that nine months after Stu Sutcliffe left the Beatles to pursue a career in painting, he died of a brain hemorrhage at the age of 21.
p60e TIL that the US government paid an average of $1.8 million to the families of the victims of 9/11