› added 4 years ago

90

TIL of the Pygmalion effect, where teachers expectations of students can improve their performance.

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lo8a7 TIL that eyeglasses are so expensive because the market is dominated by one company: Luxottica. They are the makers of the vast majority of the name brands and also own Sunglass Hut, Pearle Vision, and Lens Crafters.
npQd TIL There is a one-hole “golf course” just meters south of the Korean DMZ which is surrounded on three sides by minefields. There are reports that at least one shot exploded a land mine
QNRrd TIL of the RP FLIP, an open ocean research vessel owned by the US Office of Naval Research. It is a one of a kind vessel capable of flipping orientation from horizontal to vertical by filling/emptying an incredibly long water reservoir.
MeaQA TIL that Dolly Parton and her husband of 50 years have no children of their own.
78JNL TIL the loudest sound in recorded history came from the volcanic eruption on the Indonesian island Krakatoa.