› added 3 months ago

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TIL that city transportation maps with over 250 connections are too complex for most people to navigate. In fact, a staggering 80% of trips in New York already exceed this cognitive limit.

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j6GZn TIL studies show that experiencing Déjà vu is more likely to occur in individuals with more education, travel experience, and liberal attitudes. It also greatly diminishes as a person ages.
V1E0 TIL - It is not the shrapnel from a bomb that usually kills a disposal expert. It’s the shock wave. The sudden change in internal and external pressure causes the internal organs to explode. This is called “Blast Induced Barotrauma”. Bomb suits are nearly invulnerable to projectiles.
rRXvy TIL that during WWII, the Germans and the British independently discovered that they could use thin aluminum strips dropped from planes to jam enemy radar, but both sides refused to use this for over a year for fear the other would figure out the technique
P10Nw TIL that in 1950's and 60's the Canadian government, military and the RCMP used a device called "the fruit machine" to attempt to identify homosexual men in the public service. Subjects were made to view pornography while measurements were taken of pupil diameter, perspiration and pulse.
XEkr6 TIL that chewing gum is a synthetic rubber - polyisobutylene - and can be recycled into things like shoes, coffee mugs, pencils and rulers.