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TIL the United States Air Force F-22A Raptor stealth fighter jet "has a radar cross-section smaller than a bumblebee, making it nearly undetectable." And the Raptor's radar "changes frequencies over 1,000 times per second to deter detection by enemy forces."

Read more airman.dodlive.mil

via reddit.com

grARb TIL 2006 film Cars earned $462 million on box office, relatively modest result for Pixar films. However it earned $8 billion on merchandising in just 5 years.
1lxV TIL ExxonMobile, Chevron, and ConocoPhillips are descendant companies of John D. Rockefeller’s oil empire Standard Oil. Rockefeller was worth $237 billion.
VBBjD TIL that cannabis and hops both belong to the same family, Cannabaceae.
Egol0 TIL that the Golden rule of treating others the way you want to be treated exists among emotionally intelligent primates like chimps and bonobos.
e0vxn TIL that a French surgeon first started wearing blue scrubs during surgery in 1914 because he discovered it reduced eye strain for doctors working endless hours during WWI. "Ciel Blue" became standard once surgery was videotaped in the 1970s and white scrubs conflicted with the white lights.