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TIL that the Statue of Liberty was certified as a lighthouse until 1902, and--if it hadn't been decertified--would be the tallest coastal lighthouse in the world today.

v1e0j TIL of the Eidophone, an instrument which created images from the interaction of voice and materials. Inventor Margaret Watts-Hughes, a Welsh singer, was working with a device similar to Bell's Photophone when she noticed perfect geometrical patterns formed according to clarity and calibre of voice.
AG1a TIL: If you cut off a Starfish’s leg it will grow back. The leg itself will also grow a new body containing four new legs effectively cloning itself.
kJxy1 TIL that the last documented human sacrifice by Mapuche indians happened in 1960, after an earthquake and tsunami. A five-year-old had his legs and arms amputed, stuck into the sand like a stake and his body carried by the ocean. A Chilean judge left them free based on "ancient tradition"
5yer TIL in 1973, a Libyan passenger jet having navigational problems wandered into Israeli airspace. When 2 Israeli F-4s intercepted the jet and instructed the crew to land, they refused because of bad Libyan-Israeli relations at the time. The jet was then shot down, killing 108 people.
WkOV9 TIL a cockroach can "karate kick" an emerald jewel wasp in the head. If not kicked away, a wasp injects venom into a roach's brain & midsection which paralyzes a roach's front legs & makes it a zombie to be led by its antennae; then it gets stuck with a wasp egg & eaten alive by wasp larvae.