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TIL Scooby Doo’s real name is “Scoobert Doo”.
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wikipedia.org
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ift.tt
yV8nl
TIL that aqueducts are water channels that use gravity to move water from a source to a destination. An ancient Roman aqueduct used only a 51 foot height difference to push water down a 31-mile-long path, resulting in as little as a 1-inch drop to push water 1,500 feet.
R78P1
TIL the common tumbleweed which is used to symbolize the American frontier is an invasive plant species from Russia. The only two states that have not been infested are Alaska and Florida.
RJg8
TIL that vampire bats will die if they can’t find blood for two nights in a row. Luckily, generous well-fed bats will often regurgitate blood to share with others, in exchange for grooming. This has been noted by many naturalists as an example of reciprocal altruism in nature.
jVYp
TIL that Students at John Hopkins University collaboratively decided to opt out of their final since the professor set his curve based on the highest score grading it as 100%. They chose to receive a score of zero making it the highest grade, thereby getting 100%
J1RZ8
TIL the longest theoretical sight line at ground level on earth is Hindu-tagh in China to Mt. Dankova in Kyrgyzstan at 538 Km, while the longest photographed sight line is from the Spanish Pyrenees to French Alps at 443 Km.