› added 12 years ago

104

TIL that the saying “when it rains, it pours” actually comes from the tagline of Morton Salt, whose ionized salt didn’t clump in damp/humid weather

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via reddit.com

lo4lG TIL that watching a fire can lower your blood pressure
VB45Q TIL Albert Einstein wrote a preface to the German edition of Upton Sinclair's 1930 "Mental Radio" book, which explores telepathy and the authors' experiments in psychic communication with his wife. He wrote that the book "deserves the most earnest consideration from psychologists"
reZe TIL the sun and moon appear to be the same size in the sky because of an astonishing coincidence: the moon is 400 times smaller but 400 times closer.
wLPoM TIL that Sperm Whales’ sounds are so loud (under water) they can burst your ear drums or even “vibrate” you to death.
WkLwN TIL that the chemical chlorine trifluoride, is so flammable it can set virtually anything on fire. In the 1950's, a 1 TON spill of this chemical burned through a foot of concrete, another 3 feet of sand and gravel beneath that, with a side of deadly clouds of corrosive hydrofluoric acid gas.