› added 11 years ago

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TIL…Apache pilots train their eyes to work independently

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via reddit.com

by4N TIL Bausch & Lomb packaged identical lenses under 4 different brands with different pricing, charging $3 to $70 per pair depending on how often the lenses would be replaced. They also repackaged lens cleaning solution (23¢ per ounce) as eye drops, which sold for $4.49 per ounce.
9w8aB TIL even traveling at the speed of light, it would take us 25,000 years to reach the center of our galaxy.
gmP8 TIL that the US has invaded Canada twice, and lost both times.
b68w0 TIL scientists are using machine learning on photos of your retina (the back of your eye) to help screen for ADHD!
drEZ TIL in 1955, Hugh Hefner agreed to publish in Playboy a short story about straight men being persecuted in a world where homosexuality was the norm. In response to the criticism, Hefner replied, “If it was wrong to persecute heterosexuals in a homosexual society then the reverse was wrong, too.”