› added 9 years ago

461

TIL Whales have accents and regional dialects

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9Yrmr TIL that in the early 1990s, New York City's Metro Transit Authority had a mascot for their new MetroCard service (that replaced tokens) - the Caardvark
5knQ TIL: WWII aircraft designers had selection bias by analyzing returning planes to increase armor on the damaged areas. Abraham Wald pointed the craft didn’t need the armor to survive, and proposed armor on the undamaged sections as hits to these areas must have destroyed the craft not returning.
5YaAQ TIL that the Aurora Borealis, also known as the Northern Lights are incredible light shows that caused by collisions between electrically charged particles and Earth’s atmosphere. They occur mostly in high altitudes near the poles. These events inspire stories from prehistoric times
X0xXQ TIL that Benazir Bhutto became PM of Pakistan at 35, making her the first woman to lead a Muslim-majority country, and later became the first elected head of government in modern history to give birth while in office (1990).
Bgnve TIL In 1787, the (Kingdom of Great Britain) Royal Mint found that at most eight per cent of "halfpennies" in circulation were genuine.