› added 5 years ago

128

TIL that Japan already had HDTV in the 1990s, way before anywhere else

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Eo9w TIL they’re building a 17 story tall waterslide that will propel a tube full of 4 people down at 65 mph
4Xj0o TIL that if you use Adderall and don't have ADHD you're 17% LESS likely to graduate from college.
D6Qj TIL that breeding Hummingbirds cluster around Hawks’ nests, and that Hummingbirds who breed closer to Hawks have a higher success rate than those who don’t because the Hawks protect the Hummingbird from animals which prey on the Hummers’ eggs.
KYAya TIL that the Isle of Man TT Mountain Course track has had 265 fatalities in its history, and has had only one year without any fatalities
e08kL TIL Not only do bats make high-pitched sounds for echolocation, many bat species also sing. A team of scientists that analyzed one species’ song translated it as a sequence that opens with a hello, then a gender identification, then some geographic information, & then a "let's talk" section.