› added 4 years ago

503

TIL The sharpest usable knife blades are made from volcanic glass called obsidian. They are 10 times thinner than a razor blade but can’t be used for surgical instruments as they could shatter.

Read more edition.cnn.com

via reddit.com

R9Qw TIL Before a hurricane, Walmart will fill their stores with strawberry poptarts. This is a result from their data mining and finding stores sold 7x more strawberry poptarts before the storm.
4kLRo TIL The phrase “what happens in Vegas, stays in Vegas” came from an advertising slogan created by the Las Vegas Convention and Visitors Authority and R&R Partners in 2003. They hoped to rebrand Vegas as a place where visitors could let loose. The original phrase was “what happens here, stays here.”
W79GL TIL Metallica has its own philanthropic organization called All Within My Hands devoted to "creating sustainable communities by supporting workforce education, the fight against hunger, and other critical local services."
m1DoP TIL about Spontaneous Human Combustion," a phenomenon where a body is found burned to ashes but surrounding objects are largely untouched, explained by forensic science as the wick effect, body fat melts and soaks into their clothes, acting like the wax fuel in a candle
mRjv TIL The Pacific Northwest Tree Octopus was a hoax designed by the U of Conn. to test 7th graders ability to decipher fake news on the internet presented as real. They all failed. Some even maintained it was real even after confronted with the hoax, a phenomenon called belief perseverance.