› added 1 year ago

95

TIL that there are 15 different plug styles.

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VBAYZ TIL Leonardo da Vinci Used Mirror Writing for the Majority of His Personal Notes
vPMXL TIL in 1959 the US Post Office Dept used the submarine USS Barbero to test the concept of rocket mail. A cruise missile with its warhead replaced with two mail containers was launched from the sub and successfully recovered at a naval air station in Florida
OoLNa TIL in the 1930s a DuPont chemist found that crystals of a substance called PTC (phenylthiocarbamide) tasted very bitter to some but were tasteless to others (about 75% taste bitterness). Researchers found three variants in a gene called TAS2R38. Two copies of this variant make you non-taster.
OBP6 TIL you should look away from your computer every 20 min. and gaze at something 20 ft. away from you for 20 sec. to help with computer eye strain - called the “20-20-20 rule”
mjlO TIL the longest jail term in the US to a single person on multiple counts was to Oklahoma child rapist Charles Scott Robinson in 1994. He was sentenced to a total of 30,000 years, 5,000 years for each of the six counts against him.