› added 7 months ago

25

TIL in 1962 Nick Holonyak Jr. invented & first demonstrated a semiconductor laser diode that emitted visible light which was the forerunner of the first generation of commercial LEDs. In addition, 10 of his 60 former doctoral students have since developed new uses for LED technology.

Read more wikipedia.org

via reddit.com

MeZWb TIL that caterpillars digest their entire body into a soupy liquid in their cocoon before regenerating into a butterfly from the few remaining cells.
4kEM6 TIL: Ocean world exoplanets can have oceans so deep that the pressure creates a liquid mantle of exotic forms of ice, such as ice V
ZpV0p Today I learned Ted Danson ended his 2nd marriage over an affair with Whoopi Goldberg, costing 30$ Million
jQxX TIL that attaching green LED lights to nets used by small-scale fisherman can reduce the number of green sea turtle deaths by 64 percent. Without affecting the number of fish caught.
VQym TIL there is an abandoned subway station under City Hall in New York that no train stops at but that you can see in passing if you take the number 6 train