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TIL SonoPrep is a method of painless drug administration through human skin by rendering the skin permeable to fluids via the use of ultrasonic wave. The skin goes back to its normal state within 24 hours.

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QNEjp TIL about "Bathing Machines" ... Portable Huts that, in the 18th and early 19th-Centuries, were rolled into the ocean to allow bathers to "changes into whatever shapeless sack was deemed suitable at the time" to go swimming.
9w8MB TIL that Quillaia extract (the milled inner bark or small stems and branches of the soapbark evergreen tree) is added to many soft drinks (such as root-beer and cream-soda) to provide a 'foaming' effect. It is also used as an additive in some foods to aid in keeping them moist.
6PGm TIL that, contrary to popular belief, the blisters and rash that accompany poison ivy cannot actually spread it, even when broken, and that the appearance of “spreading” is caused by different skin absorption rates from the initial exposure.
B9pd TIL: In its January 1988 issue, Cosmopolitan ran a feature claiming that women had almost no reason to worry about contracting HIV. The piece claimed that unprotected sex with an HIV-positive man did not put women at risk of infection and went on to state that “most heterosexuals are not at risk”.
e0Xa6 TIL at the height of the Mongol Empire, Kublai Khan commissioned the creation of a unified script to be used by all languages within the empire. Called 'Phags-pa script, it was the official script for about 100 years, before falling out of use towards the end of the Yuan Dynasty in the 1350s.