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TIL GravityLight is an LED light powered by a bag filled with 20 lbs of rocks or earth, attached to a cord, which slowly descends and powers the light for up to 20 minutes & takes only seconds to reset. Intended as a replacement for kerosene lamps in the developing world it has no operating costs

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6RDQ TIL When Canadian Prime Minster Lester B. Pearson Came To Philadelphia To Speak Against The Vietnam War, Before He Could Finish His Speech President Lyndon B. Johnson summoned him to Camp David, Maryland where he grabbed him and said “Don’t you come into my living room and piss on my rug.”
ne1XW TIL that Kathy Sullivan, the first American woman to space walk, became in June 2020 the only person to have visited both space and the deepest place on Earth, the Challenger Deep in the Mariana Trench.
4XWG5 TIL about the Suicide Squad a group of 20 New Zealand Legislative Councillors whom in 1950 were appointed by the then NZ Prime Minister to vote the Upper house of Parliament out of existence thus making themselves redundant.
4k6NX TIL of John R. Baylor the self-proclaimed 'governor' of Arizona who was a Confederate Colonel whose self-appointment was later approved by Jefferson Davis. Baylor gave orders to exterminate the indigenous Apache and when Davis got wind of it he rescinded the orders as well as Baylor's governorship.
v1XvL TIL the most expensive mansion ever built in the US ($179,925,000), was demolished 16 years after completion when the owner’s widow sold the property to a developer.