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According to BestLife Neil Armstrong and the Apollo 11 crew faced the real chance that they wouldn't return from the moon safely, leaving their families without financial support. Due to the extreme danger that they were about to face, they couldn't take out life insurance policies. So instead, they signed hundreds of autographs, which their families would have been able to sell if they didn't make it home. Luckily, those life insurance autographs weren't needed. They do, however, show up in space memorabilia auctions today, selling for as much as $30,000.

Samsung actually uses a butt-shaped robot to test phone durability... It even wears a pair of jeans! .... We here at WKN were hoping it was the cannon... all well.

Neutron stars are unfathomably dense and relatively small (only 12.5 miles in diameter) — but this makes 1.5 times the mass of Earth's sun. "Just a sugar cube of neutron star matter would weigh about one hundred million tons on Earth," according to National Geographic. One cubic meter would be equal to the weight of the entire Atlantic Ocean! <strong>One teaspoon would equal 900 Pyramids of Giza.

U.S.-born inventor Eli Whitney invented the cotton gin in 1794.

The American Public Power Association (APPA) says that squirrels are the most frequent cause of power outages in the U.S. The APPA even developed a data tracker called "The Squirrel Index" that analyzes the patterns and timing of squirrels' impact on electrical power systems. Turns out, the peak times of the year for squirrel attacks are from May to June and October to November. Typically, the squirrels cause problems by tunneling, chewing through electrical insulation, or becoming a current path between electrical conductors. "Frankly, the number one threat experienced to date by the U.S. electrical grid is squirrels," said John C. Inglis, the former, in 2015.