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TIL a Googolpex is a number so large that if you were able to write it out in books the total mass of the books required would be vastly greater than the mass of the observable universe

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4XkKR When you think about animal migration, what comes to mind? Probably birds in flight or wildebeests moving across the Serengeti. Yet the largest migration on the planet is harder to see—and it happens every day. Ocean technologist and submersible pilot Dr. Erika Montague explains how.
ljx7 TIL that a coal power plant releases over 100 times more radiation into the environment than a nuclear power plant producing the same amount of energy
69PLX TIL that there are some cultures in parts of Europe that had legends that rainbows could magically change your gender.
69XeW TIL: Papers Found on a Union Officer's Body Reportedly Ordering Confederate Capital Richmond Burned Resulted in the Scandal Known as the Dahlgren Affair
RJo4 TIL according to the US Flag Code “The flag should never be used as wearing apparel, bedding, or drapery”, and “No part of the flag should ever be used as a costume or athletic uniform”