› added 12 years ago

196

TIL a Hollywood actress, Hedy Lamarr, invented the basis for modern WiFi and bluetooth in 1941

Read more wikipedia.org

via reddit.com

0rDy TIL natural nuclear fission reactors were discovered in Gabon, Africa. They operated for a few hundred thousand years and generated an average of 100kW of power.
R57D6 TIL that Winston Churchhill defended the collaborationist Security Batallions of Greece, which encouraged them to commit war crimes under the belief that their actions would go unpunished. Almost all of them walked free after the Allies won WWII.
8QgX TIL In 1968 a student at Oregon University turned up to every class in a black bag and sat at the back of the room in silence. At first the student was treated with hostility, then curiosity before finally friendship. This is known as the mere-exposure effect.
QJ56e TIL There exists such a thing as ketchup cookies
ner9r TIL about the Barbara Jordan, the first African American elected to the Texas Senate after Reconstruction, the first Southern African-American woman elected to the US House of Representatives, and the first African-American woman to be buried in the Texas State Cemetery.