› added 10 years ago

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TIL DLP projectors use up to 8 million hinged microscopic mirrors that can each move independently up to 10,000 times per second!

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via reddit.com

vPw8B TIL negative differentiation, suggesting that negativity is conceptualized in a more elaborate and complex way than positivity. Studies show that negative vocabulary is more richly descriptive of the affective experience and there appear to be more terms to express negative feelings.
Y7k5v TIL Disney pioneered the switchback queue/line system to keep crowds from blocking attractions at the worlds fair. It became ubiquitous after they began using it at Disneyland.
yYWa TIL The official Twitter account of Sweden is given to a random Swedish citizen every week to manage.
4kEYa TIL Buffy, Tess, Birdie, Busy, Tetty, Billie, Babette, Effy, Zizi, Bets, Tibby, and Lettie are all nicknames derived from Elizabeth
ONAY TIL that the famous submersible Alvin is a real-life example of the philosophical “Ship of Theseus” paradox. “The Alvin” has been in service since 1965, but every single part of it has been replaced or upgraded at least once.