› added 2 years ago

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TIL NASA tested planetary defence last year by crashing a spacecraft into an asteroid and it successfully changed it's the trajectory

Read more nasa.gov

via reddit.com

Z8K1Q TIL in 2015, a guide dog in New York was awarded the ASPCA’s “Dog of the Year” award for running in front of an oncoming bus to protect his blind owner, and didn’t leave her side until she received medical attention even though he suffered a broken leg.
WkjbA TIL that Chinese Checkers was invented in Germany
7rmLr TIL New York has a memorial to Benedict Arnold's leg
lo0vK TIL that a "perfect number" is one that that is the sum of its factors excluding itself, e.g. 1+2+3=6.
POYG TIL that in two days in the Chernobyl zone the human body receives a radiation dose equal to one intercontinental flight