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todayilearned

Jul 07, 2020

TIL that metal (eg. coins, nails...) has no smell at all. The distinct smell we associate with metals is just the metal reacting with oils and other dirt on our hands. If you wash a coin thoroughly and smell it without ever touching it, it won't have any smell at all.

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todayilearned

Dec 30, 2019

TIL in the summer of 2011, authorities were finally able to create a DNA profile of notorious serial killer Ted Bundy and upload it to the FBI’s national database when vials of his blood, taken in 1978, were discovered previously untouched and forgotten in a Florida crime lab

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todayilearned

Dec 24, 2019

TIL, there is blood type called "RH null", which is called "golden blood". This blood is so rare that only 43 people worldwide have it. Its properties make it attractive in numerous medical applications and make it very valuable.

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todayilearned

Nov 10, 2019

TIL 80's pop group Spandau Ballet got their name after seeing it written on a nightclub toilet. Spandau Ballet actually refers to prisoner hangings at Spandau Prison and their twitching and jumping at the end of the rope.

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todayilearned

Oct 30, 2019

TIL that mudskippers use gill-chambers full of water as fishy scuba gear when they’re on land.

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todayilearned

Jun 06, 2019

TIL that female vampire bats share food with others in a complex lending system, where those that share regularly get more food and those that get but don't give food are punished by the group.

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todayilearned

May 02, 2019

TIL halting sneezing via blocking the nostrils and mouth is a dangerous manoeuvre. It may lead to numerous complications, such as pneudomediastinum (air trapped in the chest between both lungs), perforation of the tympanic membrane (perforated eardrum), and even rupture of a cerebral aneurysm.

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