› added 1 year ago

293

TIL that WHAM-O's Slip N' Slide is not supposed to be used by persons over the age of 12. There have been rare instances (and lawsuits) of adults breaking their necks while using it and in 1993, the U.S. CPSC warned that the slide might cause permanent spinal cord injury to teens and adults.

Read more mentalfloss.com

via reddit.com

5VmxQ TIL the United States runs a program with lasers and lunar reflectors that measure the distance to the moon, started in 1970 - with an accuracy better than 3 centimeters since the 1990s.
oLXL TIL On April Fool’s Day 1998, Burger King published an advertisement for “Left-Handed Whopper”. The condiments of this whopper were supposed to be rotated 180 degrees, as to avoid spilling out toppings from the right side of the burger. It was said to be the “ultimate ‘Have-it-your-way’ for lefties”
xVVVB TIL that studies showed that economic insecurity causes people to experience a lack of control, which activates psychological processes associated with anxiety and fear. This causes people to be more vulnerable to feeling physical pain, and makes them more likely to rely on painkillers.
p8DG4 TIL of the sitdown strike from 36’-37’ which an organized group of workers, usually employed at factories or other centralized locations, take unauthorized or illegal possession of the workplace by "sitting down" at their stations. Costing GM close to 3 billion in today’s market
neBQr TIL that GM imported Aussie-made Holden Commodore VF performance sedans to the US from 2014-2017 and re-badged them as the Chevrolet SS.