› added 4 years ago

184

TIL Great white sharks rarely survive in captivity. Experts suspect being surrounded by glass might either confuse or overload the shark's electroreception system, which is used to sense the electrical signals given off by fish in the open ocean, not necessarily inside a glass box.

Read more mentalfloss.com

via reddit.com

xmg7 TIL The longest flight lasted over 2 months, a record that hasn’t been broken for more than 50 years.
xrvb TIL Knocker Upper , before alarm clockswere affordable or reliable. A knocker-up’s job was to rouse sleeping people so they could get to work on time. They used a truncheon or short, heavy stick to knock on the clients’ doors or a long and light stick to reach windows on higher floors.
EZJo TIL: In the original story of the Wizard of Oz, Dorothy wore silver slippers to protect her from the Wicked Witch of the West, but this was changed to Ruby Slippers in the 1939 film to take advantage of the new Technicolor process
e0QX6 TIL alcohol based hand sanitizers can cause severe intoxication in small children when absorbed through the skin.
M7VEB TIL that 'Magikkun', which means “mask fraud”, is a word that South Koreans use to describe people who hide their facial features by wearing masks on dating apps.