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Today I learned that there is an art/practice of reading code when you haven't been given a cypher called cryptanalysis. Cryptanalysis is decryption and cryptography is encryption

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BrNXy TIL: After Pearl Harbour, 3 men were trapped in the USS West Virginia for 16 days, unable to be rescued.
kJaw7 TIL that Cracker Jack is considered by some food historians to be the first junk food. It was introduced in 1896 along with the slogan “The more you eat, the more you want.”
awoyA TIL that the Secretary of Treasury Steven Mnuchin’s official signature on United States’ currency is written in print.
P1KAE TIL that the Pistol Shrimp, a small creature that can snap its claw so fast, it creates a bubble hot enough to produce light and temperatures similar to the sun's surface, stunning or killing its prey with the shockwave
QNWRk TIL in 1964, the Nth Country Experiment took three recent PhD graduates, gave them unclassified data and, three years yater, they managed to create a working device to produce a nuclear bomb