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TIL of hidden mother photography, which was a result from the long exposure time needed for early photographs

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5YwMR TIL the Apollo 11 rock presented to Ireland was accidentally discarded in a landfill known as the Dunsink Landfill in October 1977 following a fire that consumed the Meridian room library at the Dublin Dunsink Observatory where the rock was displayed.
wOW7 TIL cats in the US are said to have 9 lives whereas in Germany and southern Europe they only have 7 lives…while the poor cats in Arabian countries are even only said to have 6 lives.
16VMW TIL Although different in stature and build and created earlier than the famed Egyptian pyramids, Sudan has more ancient pyramids than Egypt. There are around 2000 Kushite pyramids in upper Sudan, compared with 200 Egyptian pyramids.
MryV TIL that prototype cars being road tested wear a white and black pattern camofluage vinyl in order to make it impossible for auto focus equipped cameras to focus on the car.
65kw TIL that Yungay, Peru was the site of the deadliest avalanche in history. In 1962, two American scientists predicted the calamity, and were consequently forced to flee by the government. 8 years later, their prediction came true and 20,000 people were killed in a day.