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TIL that in 1997 the former president of the Soviet Union, Mikhail Gorbachev appeared in a Pizza Hut commercial

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y7Ne TIL that on this day 100 years ago, Jack LaLane was born. When he opened his first health club, doctors advised their patients to stay away and warned their patients that “LaLanne was an exercise ‘nut,’ whose programs would make them "muscle-bound” and cause severe medical problems.
kJv0W TIL There’s actually gravity in space. It helps keep the sun in place and is the reason orbits can happen. The gravity in space though, is weaker than that on earth. While astronauts looks like they’re floating, they are actually falling, very slowly.
P1kZn TIL that during the 1908 London Olympics, the United Kingdom ordered every country to dip its flag in honor of King Edward VII. All except the United States did so, with the American flag bearer stating, "This flag dips to no earthly king."
1a887 TIL a 2017 University of Iowa experiment concluded that pigeons can understand concepts of space and time, but not exactly how they do it. The birds “judged longer lines to also have longer duration and judged lines longer in duration to also be longer in length.”
LQR0p TIL Taxi drivers are less likely to die from Alzheimer's disease. Having to memorize routes is hypothesized to have beneficial effects on the hippocampus, a brain structure involved in learning and memory, which degenerates in Alzheimer's disease