› added 9 years ago

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TIL More people are killed by hammers every year than by rifles.

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1bMD TIL the call of the American bald eagle frequently heard in movies actually belongs to the red-tailed hawk.
NBAJ TIL, in 1946 NACA (now known as NASA) subjected a human test subject to winds of up to 457mph in the name of science.
eJWg TIL Nikola Tesla created the first logic gate in 1898 when he created the first remote controlled vehicle, over 50 years before Walther Bothe won the Nobel Peace Prize for it. He reportedly told onlookers multiple times it was simple science beforehand so that they would not think it witchcraft.
E1dDw TIL dogs can lose sleep due to negative emotional responses or stimuli. Researchers found that dogs are less likely to toss and turn or sleep restlessly if they receive positive feedback before bedtime
rNmEy TIL about Eurypterids, or "sea scorpions", the largest known arthropods ever to have lived. The largest, Jaekelopterus, reached 2.5 meters (8.2 ft) in length. Many forms lived in brackish or fresh water, and their dual respiratory system allowed for short periods of time on land.