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TIL Dasani sources water from municipal pool water in some California locations

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LkMep TIL printers print nearly invisible codes on your documents which contain information like the date and time it was printed and the printers serialnumber. And some engineers outsmarted this.
Wpw8 TIL A banana is a unit of radioactive exposure and that a truckload of bananas is able to set off a false alarm at U.S. ports sensing for smuggled radioactive material
OoWEY TIL in the 1980s Japan introduced forest bathing (being around trees) as part of its national health program. Known as shinrin-yoku, Japan has official forests based upon their unique physiological and psychological effects. The essential oils of trees (phytoncides) reduce stress and boost immunity.
QN4JX TIL about the old Chinese custom of 'footbinding' (also known as lotus feet), and that it was seen as a mark of feminine beauty and a status symbol, raising marriage prospects. Feet were broken and bound together, ensuing in many deformities, infections, and disabilities.
X0Oxj TIL in 1915 a farmer saw his sister make her own mascara with coal and petrolium jelly and thought he could make a better product. His invention was easier to apply and won't burn a woman's eye. He named his new company Maybelline after his sister Maybel and the base material Vasaline.