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TIL that the vibrator was invented for doctors who suffered from fatigued wrists and hands after giving female patients orgasms in order to treat hysteria

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j6JBa TIL Daylight Saving Time (DST) was first used in 1908 in Port Arthur, Ontario (today's Thunder Bay). While Germany and Austria were the first countries to use DST in 1916, a few hundred Canadians beat the German Empire by eight years.
epwx4 TIL that in 2002, after incumbent Minnesota Democratic Senator Paul Wellstone died in a plane crash, the Democratic-Farmer-Labor Party chose former VP Walter Mondale to replace Wellstone a week before the election. This marked Mondale's return to politics after 22 years, losing with 47% of the vote
JYdnj TIL The Fisher Pen Co. patented a sealed, pressurised ink cartridge for the anti-gravity pen in 1966. The "thixotropic” ink is close to a solid before being stirred & as it's stirred by the ball going through the point, it becomes very thin which allows it to flow in the gravity-free vacuum of space
E1oaV TIL that having an especially judgemental attitude towards one’s inner experience can be the result of mental illness like depression and anxiety or even uncontrollable outburst of anger (Barcaccia et al., 2019; Barlow, Durand, & Hoffman, 2017).
9YDlm TIL that out at sea, a tsunami is only about a metre high, and could pass a boat without being noticed. As it approaches the shore, it’s the sudden deceleration from about 800km/h to 50km/h which creates the immense wave