› added 4 years ago

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TIL director John Landis (Trading Places, Blues Bros, American Werewolf in London, etc.) has a recurring gag in most of his films, referring to a fictional film that seems to be completely different every time it’s depicted.

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e0PXD TIL that natural gas, propane, etc don't really have a smell of their own. A chemical called methanethiol is added as a safety measure because it is detectable by the human nose at incredibly small concentrations. It is also partially responsible for the smell of bad breath and flatulence.
VpOp TIL that Detroit had 2,123 instances of violent crime per 100,000 residents in 2013 and remains America’s most dangerous city
dDvG8 TIL that in 2006 the Manually Self-Operated Butt-Kicking Machine was patented to advance the art and expand the science of butt-kicking technologies.
GYJ4N TIL that 'figure skating' is named after a requirement that skaters draw figures in the ice, such as loops, figure-8s, and swirls, called "compulsory figures". Once making up the majority of a skater's score, figures were slowly reduced and eventually eliminated from competition entirely by 1990.
D1Mdv TIL that for the "Laurel" vs "Yanny" debate, by filtering the recording for only higher frequency sounds, you'd hear "Yanny" more clearly, and vice versa