› added 1 year ago

72

TIL that chromium makes steel stainless by reacting with oxygen and creating a layer of chromium oxide (chrome) that prevents oxygen from further oxidizing (rusting) the metal. All thanks to a random knife maker on YouTube.

Read more youtu.be

via reddit.com

Z8KnY TIL Kobe Bryant studied sharks and even dove with them. Now a great white is named after him
4y9a TIL Nigerian scammers once sold a fake airport to a major international bank for $242 million, and the scam wasn’t discovered till 3 years later.
nj1Y TIL that there is a waiting list of pro-life advocates to adopt babies with Down Syndrome, AIDS, and other terminal illnesses from anywhere in the world.
Y7PX7 TIL It's Such a Beautiful Day (2012) was shot entirely on camera from the 1940s. The films splitscreens were done with holes and multiple exposures, while the digital effects were done by printing out each frame and photographing it.
QJWGd TIL serial child molester and necrophiliac Jimmy Savile was a marriage counsellor for Princess Diana and Prince Charles