› added 8 years ago

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TIL that due to time dilation its possible to travel anywhere in the galaxy within a human lifetime. A ship accelerating constantly at 1g (earth gravity) could travel to the center of the milky way and back in 40 years.

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via ift.tt

6jjQ TIL there is less bacteria in urine than tapwater.
kOrN4 TIL Scientists haven’t excavated the tomb of China’s first emperor because they are not allowed to, and because it is (or was) surrounded by a “river of mercury”
9YDZr TIL of Sasha the black cat who was found in the city Santa Fe, Mexico 1,200 miles away five years after disappearing from her Portland home
bMKE TIL that 30 years ago, the Philadelphia mayor approved a bombing on MOVE activists, killing nearly a dozen people—without repercussion.
4XJ0b TIL you are less likely to die during an economic depression. This can be contributed to reduced traffic, cleaner air, and less expenditure going towards harmful vices such as tabacco and alcohol.