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Til the first recorded use of sonar technique was by Leonardo da Vinci in 1490

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PrQw TIL Egypt is quantitatively the most rectangle country.
D1EbY TIL: These Turkish villagers have a whistle language for 300 years when I can even whistle.
9Y7dm TIL the Bill and Melinda Gates Foundation donated $4M to help stop malaria in a plan to create genetically modified non-biting male mosquitoes released to mate with malaria-carrying wild females, giving birth to progeny that dies before reaching the human biting age.
aweVN TIL On average, golf balls contain between 300 and 500 dimples across their surface. Balls with more dimples have less drag and go further.
GAvp5 TIL China does not recognize international time zones within its borders. The entire country uses China Standard Time which is aligned to Beijing Time