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194

TIL British nukes used to be protected by bicycle locks

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4wXg TIL There are 33 million more men than Women in China
R55K1 TIL a cat’s purr is typically between 25Hz and 140Hz. These levels have shown promise in healing bone and joint problems, so much so that the rate of healing for broken bones has shown to increase.
yQgGX TIL that a dental worker once injected herself with mercury and survived
Q7X6 TIL: In 1963, Alfred Heineken created a beer bottle that could also function as a brick to build houses in impoverished countries.
j68xM TIL that the Leaning Tower of Pisa is inclined by only 4 degrees (3.97 to be precise)