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TIL alcohol is a banned substance in competitive shooting because a small amount can relax a competitor and slow their heart rate without impairing reaction time and motor skills.

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7rkl7 TIL that they train the crews of giant container ships and oil tankers using ride-on models in a big pond.
7RKx TIL the last allowed visit to the Fort Knox gold vault, by members of the US Congress and some journalists was on 23 September 1974.
OG7eX TIL there’s a “bridge generation” between Generation X and Millennials called Xennials (born 1977-1983). This generation had an analog childhood and a digital adulthood.
W7gA9 Today I learned a radioactive cocaine analogue is used to test for Parkinson’s disease
Vrl8 TIL the R2-D2 props used in Star Wars: The Force Awakens were constructed by long-time droid-building hobbyists, one of whom cheekily offered his services to Kathleen Kennedy at a Star Wars convention in 2013