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TIL that Hypoxia impedes judgment to the point of being unable to recognise a playing cards suit or number.

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OARe TIL a 13 year old girl from Louisiana is working to be a crew member on a Mars One.
yVkr8 TIL: Half of UK Adults Have Irreversible Periodontitis, According to an Evidence-Based Toolkit for Prevention by the UK Government.
oBnEK TIL that shortly before the Attack on Pearl Harbor, the Japanese government sent its declaration of war to its embassy in America. However, the message was so long and confusingly worded that by the time the embassy had it decoded and translated, the attack had already finished.
oB5XA TIL that the person who is largely credited for inventing the polygraph machine is the same person who created Wonder Woman and the Lasso of Truth.
0wn0M TIL what the black circles in the microwave window are for! “It’s designed to prevent electromagnetic energy from escaping the microwave and protects you from radiation.” The holes are small enough to protect you, but are still big enough to let you see!