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TIL that a Brontosaurus skull has never been found.
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M7KWb
TIL that in 1868 the first non-electric gas-lit traffic light was installed in London outside the Houses of Parliament to control the traffic in adjacent streets. Its operational life was brief: it exploded a month later as a result of a leak injuring the policeman operating the traffic light.
Yx1d
TIL Disney studios used a multiplane camera which moves a number of pieces of artwork painted on glass past the camera at various speeds and at various distances from one another to create a three-dimensional effect.
Y7y0W
TIL The Pentagon is not in Washington DC
JBJ1
TIL that, even though people often question the safety of vaccine ingredients, a typical dose contains less mercury than a tuna sandwich
b9kkQ
TIL Peeling away Scotch tape in a vacuum releases enough x-rays to image your hand.