› added 6 years ago

202

TIL that if the Moon was brought 21 times closer to the Earth it would break apart and give the Earth rings, due to what's known as the Roche Limit

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via reddit.com

P1bEV TIL that the Earth orbits the Sun
Vopk TIL that the first thing ever sold online was marijuana.
b9kg0 TIL at high enough speeds an aircraft can use it's own shockwaves to generate a considerable amount of additional lift. This phenomenon is called compression lift and has only been demonstrated to two aircraft models.
Mee8B TIL prior to the advent of commercial aviation, "air-line" referred to railroads that used relatively straight and direct routes.
awGJZ TIL that Ninebot, a Chinese manufacturer of Segway style scooters, made so much money off their copies that they could afford to buy Segway.