› added 4 months ago

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TIL Thermonuclear bombs are mostly styrofoam. The radiation channel is filled with polystyrene foam, a crucial component for the device's function, making up the bulk of its volume

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QNMRE TIL about Rip. A ww2 search and rescue dog who was awarded the Dickin Medal for bravery in 1945. He was found in Poplar, London, in 1940 by an Air Raid warden, and became the service's first search and rescue dog. He is credited with saving the lives of over 100 people.
W7GkY TIL that according to an estimate by astronomer Simon Driver, there are about 70 sextillion stars (or 70 thousand million million million stars) in our observable universe.
x6JdD TIL Only 17-25% of people that fall overboard on a cruise ship are ever rescued
LQWlv TIL that alcohol-based hand sanitizers don’t kill norovirus, the highly contagious “winter vomiting disease” that sickens 685 million people per year.
pYon8 Today I learned that the Great Wall of China is a bunch of smaller walls built over many centuries, and they each have their own names.