› added 4 years ago

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TIL the US military is developing a plane capable of Mach 6 (4,600 mph) to succeed the now-retired SR-71 Blackbird, which flew at Mach 2.8. This new plane, the SR-72, is unmanned, will perform surveillance and reconnaisance, and a protoype will fly in 2025 before entering service in 2030.

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OYOe TIL the “I should buy a boat” cat is from a Bjork music video.
ZpmDQ TIL that in 2019, Sonos used to have a "recycle mode" that intentionally bricked speakers so they could not be reused - it made it impossible for recycling firms to resell it or do anything else but strip it for parts.
JYEvm TIL They found that the bats' closest relatives aren't tree shrews, flying lemurs, or even mice (as has been proposed); instead, they formed their own group early on that may share a common ancestor with the mammals that eventually evolved into horses, pangolins, whales, and dogs.
d8WZr TIL that Chinese lion dance isn't just for parades. It's also a competitive highly acrobatic sport with an annual world championship.
rA9w TIL Central Park’s rivers and streams are entirely artificial and can be turned on and off.