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TIL the chemical composition of emotional tears differs from those secreted due to irritation (such as tears caused by onions). Emotional tears include more protein-based hormones such as prolactin and leucine enkephalin, a natural painkiller that acts as the mechanism that allows one to feel better

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5VKJn TIL that the oldest person in the world is 116 years and 116 days old TODAY
gMbjA TIL about the ancient art of Japanese woodworking joinery, none of which uses any nails.
Gwv4 TIL that there is an actual name for the shape of Pringles - a Hyperbolic Paraboloid
n1kB TIL there’s a second Monalisa in Museo del Prado, Madrid, that was probably painted by one of Da Vinci’s pupils. When viewed combined with the original Mona Lisa, it can create a 3-D effect, making it the first stereoscopic image in world history.
pJEN TIL that anti-occupation Rabbis have actually volunteered to be human shields in order to defend Palestinian villages from destruction