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TIL the average urinary flow rate for women over 66 years old is twice the rate of men the same age. (18mL/sec. vs. 9mL/sec.)

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KODdJ TIL modern nuclear submarines are so well cloaked that in 2009, two French and British nuclear ballistic missle subs collided in the atlantic ocean by pure chance. Moving very slowly, they were't able to detect each other just feet apart.
kJlp4 TIL fingernails grow nearly 3-4 times faster than toenails
MjgB TIL our walking speed is affected by whom we’re with: men’s pace slows down by an average of 7% when walking w/ female partners they’re interested in; women walking together move the slowest; & men walking w/ male friends moved at speeds faster than either man’s preferred walking speed.
9wP06 TIL that, by one definition, Canada did not become politically independent of Great Britain until 1931. Because it was a gradual process, it is quite difficult to identify a single date of Canadian independence.
Mexj7 TIL that despite being considered a watershed moment in terms of computer effects in film, there are only 6 minutes of CGI dinosaur screentime "Jurassic Park", less than 5% of its runtime.