› added 1 year ago

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Today I learned Bout Mount Key, an artificial island build by the Calusa, made from discarded seashells

Read more trailoffloridasindianheritage.org

via reddit.com

gMmAy TIL that back when dinosaurs existed, there used to be volcanoes that were erupting on the moon.
pYGLN TIL Snow is an excellent insulator because it consists of about 90–95 percent trapped air (fresh). This is the reason why igloos are warmer inside than outside, and why some animals in colder regions build snow caves to spend the winter while hibernating.
nbdo TIL African-American physicist and mathematician Katherine Johnson calculated the trajectory for Alan Shepard’s first space flight by hand. When NASA used computers for the first time to calculate John Glenn’s orbit around Earth, officials called on Johnson to verify its numbers.
eykJ TIL Benjamin Clark sacrificed his life to save hundreds during 9/11, he wasn’t a firefighter or a cop, he’s a chef.
KOJRQ TIL Max Brooks, author of World War Z and son of Mel Brooks, is dyslexic. Brooks' mother, Anne Bancroft, put her career on hold to educate her son, making audio cassettes for all his assigned readings. Brooks thanked his mother, saying, "not only did my mother give me my life, she saved my life."