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TIL that Bill Hamilton developed modern jetboats since no existing boats could navigate the shallow, fast flowing rivers of New Zealand. He took his boats to the USA for demonstrations amidst criticism from the media. In 1960 his boats became the first and only boats to travel up the grand canyon.

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jNAdN TIL there are no recorded fatal attacks of wild Orcas on humans. In 2005 a 12 yr old boy in AK was bumped by a killer whale while splashing in 4 ft of water. The boy was likely mistaken for a seal and the bump was an aborted attack once the whale realized the mistake
neEDb TIL Gold is an inert noble metal as it does not react with other elements. It is the most malleable and ductile of all known metals. An ounce of gold can be beaten into a sheet measuring 300 square feet or stretched into a gold thread 5 miles long.
yJo8 TIL that Steve Jobs almost named the iMac Macman. This would have meant we would now be using Podmans, Padmans, and Phonemans.
W7GQL TIL The beautiful sand beaches of the Maldives are made out of 70% to 85% poo by the Parrotfish. One Parrotfish alone produces approximately 90kg of sand per year. This kind of sand is also heating up less than rocky sand.
emkJ TIL that the first foreigner to become a samurai was an african slave.