› added 2 months ago

9

TIL that the extra skin on the elbow joint is called Weenis

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xVOP0 TIL about Pumped-Storage Hydroelectricity, in which thousands of gallons of water are pumped to a reservoir at a higher elevation using off-peak electricity, then released to turn turbines and produce electricity at a later date. It's a non-chemical form of battery.
5Y6GQ TIL The pH scale was invented by the Carlsberg brewery as a convince for determining the acidity of their alcoholic beverages
OnYR TIL that you are not fully protected as a seller on eBay from buyers making fraudulent claims
XEdP8 TIL that mucus gets its green color from an enzyme white blood cells use to make a corrosive chemical called hypochlorite to dissolve bacteria. Hypochlorite is the same chemical used in household bleach.
PK0V TIL that in one lifetime (of ~75 years) humans went from creating the first sustainable light bulb to building the first nuclear power plant (Obninsk).