› added 1 year ago

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TIL Alpha Cephei will be the next north star in the year 7500, taking the place of Polaris.

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P16G TIL that American Indians called themselves “red” and Chinese people called themselves “yellow” long before they encountered Europeans. [pdf]
69pn8 TIL 85% of social media videos are watched on mute, making captions essential for engagement.
VBWP8 TIL about Operation Cottage. A joint US-Canada military operation in 1943 to take back an occupied Alaskan Island. Unfortunately, Canadians and Americans mistook each other for Japanese and open fired, killing 92 soldiers and wounding over 200 others.
yQ90V TIL Doubly labeled water is water in which both the hydrogen and the oxygen have been partly or completely replaced with an uncommon isotope of these elements for tracing purposes. In particular, DLW can be used to measure the average daily metabolic rate of an organism over a period of time.
dEad TIL: 28 States have banned texting while driving. 22 of them offer traffic updates via twitter.