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todayilearned

Dec 16, 2019

TIL In 1891, Tesla made a risky Demonstration to discredit Edison company's claims on Safety of AC.During the Demo, For a moment, 250,000 volts raced across the surface of his body , causing him to be surrounded by what one newspaper called “the Effulgent Glory of Myriad Tongues of Electric Flame.”

ac/dc alternating current direct current energy history and civilization innovation j.p. morgan tesla coil the current war westinghouse

todayilearned

Jun 12, 2019

TIL that the first nuclear powered satellite in space failed after just 43 days and it will stay in orbit for 3-4000 years. There are also more than 30 Russian nuclear powered satellites in space currently.

energy gizmodo nuclear nuclear energy power science snap-10a space

todayilearned

Jun 11, 2019

TIL that according to a leaked Warner Bros. receipt, Harry Potter and the Order of the Phoenix lost $167 million USD despite grossing $900 million USD worldwide

business economy energy management marketing markets new zealand news personal finance telecommunications

todayilearned

Jun 04, 2019

TIL Trees emerged 350 million years ago. It took another 60 million years for wood-eating bacteria to evolve. Trees between this period eventually turned into the most of the coal we use today.

animals carboniferous forest coal earth energy forests history robert krulwich science and technology science storytelling trees

todayilearned

Apr 27, 2019

TIL a city in China is enforcing a social credit score system for dog owners. Owners begin with 12 points but lose points for walking a dog without a leash, not cleaning up poo or being reported for disturbance. Loss of 12 points results in loss of the dog until its owner passes a test on pet policy

10 years after wenchuan 2016 in review 2017 in review 2018 in review aging agriculture air pollution animals artificial intelligence arts business charity china’s ai revolution chinese dama chinese new year civil service civil society class climate change consumption corruption crime dealing with death disability disasters discrimination e-commerce economy education energy entertainment entrepreneurship environment erotic china ethics family fashion first person food fraud gaming gaokao gender girlhood interrupted golden week travel health health reform 2017 history hiv hu line ideology industry innovation intellectual property interactive international relations internet labor language law & justice lgbt lifestyle literature living abroad marriage may fourth movement media mekong migration music patriotism podcast policy politics population privacy property q&a race & ethnicity religion rural china science sex & relationships sharing economy since ’78 sixth tone fellowship social conflict social media sports subculture surrogacy technology tourism tradition transport tv & film urban china urban planning urbanization video violence & harassment vivid tones waste water pollution welfare wemedia women in politics yangtze deluge

todayilearned

Mar 28, 2019

TIL that ~300 million years ago, when trees died, they didn’t rot. It took 60 million years later for bacteria to evolve to be able to decompose wood. Which is where most our coal comes from

carboniferous forest coal energy science storytelling history robert krulwich animals earth science and technology forests trees

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