› added 6 years ago

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TIL the "blobfish" has been voted the world's ugliest animal. It will now serve as the mascot for the Ugly Animal Preservation Society.

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yQMnX TIL A telescope designed to view the H-alpha emission produced by excited hydrogen can show granulations on the solar surface and great detail in the sunspot regions. The H-alpha filter must be designed to produce a very narrow pass band around the wavelength of 6,562.8 Ångströms for safe viewing
ZpVoo TIL since 2020, white LED streetlights have been turning purple because of a defect during the manufacturing process between 2017 and 2019. The yellow phosphor coating was delaminating, and the blue LED began showing through, giving off a purplish glow.
epWgJ TIL While Apollo 15 astronaut Jim Irwin was lugging heavy objects on the Moon, flight surgeons noticed an irregularity in his heart rate and realized he had bigeminy. His heart condition eventually killed him 20 years later.
EO8d TIL that while in Egypt, Napoleon Bonaparte had a paranormal experience at the King’s Chamber in Giza. He was visibly shaken afterwards and asked that it never be mentioned again.
WkaZo TIL about Post orgasmic illness syndrome (POIS), a chronic disorder in which a person develops flu-like and allergy symptoms after having an orgasm.