› added 12 years ago

101

TIL The Blanket Octopus rips off the Portuguese Man O’ War’s tentacles and uses them for defensive purposes

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695G7 TIL That the concrete used by the ancient romans has self healing properties, can last thousands of years and can make construction more environmentally sustainable
boBZ TIL that an outbreak of swine flu in the US in 1976 killed one person, but the vaccine for said swine flu killed 25 people.
5Y8gR TIL The Aztecs did not build Aztec Ruins National Monument, a World Heritage Site in the American state of New Mexico; it was actually built by the Pueblo natives. The name is a misattribution from 19th century settlers.
E18Ep TIL That Harry Houdini and Arthur Conan Doyle were friends for many years, but grew apart due to a bitter feud over spiritualism. Doyle believed fervently in life after death due to the passing of his son, but when Houdini started a public campaign to expose fake mediums, they broke up.
bQga TIL the floor of the SkyCity restaurant atop Seattle’s landmark Space Needle makes one rotation every 47 minutes, weighs roughly 125 tons, and is powered by a single 1.5-horsepower motor.