› added 3 years ago

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TIL The sharpest usable knife blades are made from volcanic glass called obsidian. They are 10 times thinner than a razor blade but can’t be used for surgical instruments as they could shatter.

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EgVLo TIL that there was a short lived Spanish colony founded in 1526 in present day South Carolina called "San Miguel de Gualdape", becoming one of the first European colonies in the continental U.S.
nWkdd TIL that Arab soap operas (musalsalat) air during the month of Ramadan and are enjoyed after the fast-breaking meal of Iftar. They typically last for 30 episodes that coincide with each night of Ramadan.
XEvBr TIL about Witness Trees. These are trees that were present during key moments in American history. They have been known to hide bullets from those events within new layers of wood and bark. To help preserve their historic relevance, a Witness Tree Protection Program was launched in 2006.
vPB6L TIL there is no scientific evidence that white people originated in the Caucasus, as the term “Caucasian” suggests. Rather, the term was created because Noah’s Ark allegedly settled there, and therefore the first humans were supposedly white.
QaGp TIL The greatest benefit of roundabouts is not their efficiency, but rather that they prevent T-bone crashes. As a result, there are 90% fewer serious injuries, and 76% fewer injuries overall.