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TIL that Titan's combination of high atmospheric density and low gravity would allow a human to 'fly' by flapping fake 'wings' attached to their arms.

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awPXM TIL that the Alfred, formally known as the Black Prince, became the first vessel to fly the Grand Union Flag; the precursor to the Stars and Stripes that we know today. The flag was hoisted on the Delaware River by John Paul Jones and this event was documented in letters to Congress
pvkb TIL Charlize Theron was discovered by a talent manager in 1994, after she was spotted throwing a tantrum inside a bank over the teller’s refusal to cash a check.
kOGN7 TIL The Laffer curve, a theoretical relationship between rates of taxation and resulting revenue. It assumes that no tax revenue is raised at the extreme tax rates of 0% and 100%, and that there is a tax rate that maximizes government tax revenue. The shape of the curve is disputed among economists.
4MZb TIL that some roller coasters are recycled by selling them and moving them to other theme parks. This is partly because a reclaimed roller coaster can cost 80% less than a new one. One roller coaster, Tsunami, has been at 4 different theme parks since 1986.
XEOk TIL that ranked by geographic size, the Roman Empire was only the nineteenth biggest ever.