› added 12 years ago

73

TIL the oldest obsidian bracelet, found in Turkey, is dated to c. 7500 BCE. The symmetry of the central annular ridge is extremely precise, to the nearest degree and nearest hundred micrometers, forcing researchers to rethink the manufacturing skills of “hunter/gatherers”.

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via bit.ly

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LkZ10 TIL cryptanalyst Elizebeth Friedman broke 4,000 codes during WWII and brought down a Nazi spy ring by cracking an early version of the Enigma machine with pen and paper
Dd8V TIL The US Air Force seeded clouds to extend the monsoon season over the Ho Chi Minh trail in Vietnam between 1967 and 72. This lead to a 1977 international treaty outlawing weather warfare.
a80lM TIL that Doritos were made in Disneyland due to stale tortillas being thrown in the garbage
Brn4K TIL the One Ring prop in the Lord of the Rings movies was based on a simple wedding ring.