› added 10 months ago

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TIL that needle-free 'virtually painless' injections are possible through laser technology.

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via reddit.com

xVZZw TIL: An artist active in Grenada mounted dozens of realistic statues underwater to provide "habitat for filter-feeding organisms." The submerged sculpture garden Jason de Caires Taylor built gets visits from divers and tourists in clear-bottomed boats as well as tropical fish.
KWk6 TIL the Khasi people in southern India manipulate rubber tree roots to interweave and grow in a way to form living bridges across rivers. These living bridges increase in strength over time as the trees get bigger and can last hundreds of years and naturally survive the monsoon rains.
VbaZ TIL during WWII, Dutch railroad workers went on strike to undermine the German war effort. In response the Germans blocked food supplies to the country, resulting in a famine that killed over 20,000
DkRg TIL Harry Potter author J.K. Rowling is the first billionaire to fall off the Forbes billionaire list because of charitable giving: “You have a moral responsibility when you’ve been given far more than you need, to do wise things with it and give intelligently.”
yWQe TIL In 1910, Marseilles, France was using UV light to disinfect their water.