› added 9 years ago

85

TIL the world’s longest burning fire is 6000 years old

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4QY5 TIL that Canada’s seargent at arms carries a 4.3 million dollar jewel studded golden mace which he uses to summon the parliment
kJ4eW TIL when the automatic telephone exchange was invented in the 1890s, it was advertised as providing a "girl-less, cuss-less, out-of-order-less, wait-less telephone" experience to contrast it with manual telephone exchanges operated by women
xJGD TIL: Portland, OR is one of a few major cities that does not fluoridate their water because they believe it is harmful to human health.
jNEwn TIL that transparent aluminum is a real material. It's called Aluminium oxynitride or ALON and has far less weight and thickness than traditional bulletproof glass.
9wQM7 TIL the F-22 Raptor has a Radar Cross-Section (RCS) similar to a swarm of 10 to 50 insects