posted in Asklemmy
What is something that's crazier than the wildest dreams of any ~1970s nerd, but exists today? I'll start with an easy one:
Replying to @yogurtwrong@lemmy.world
Blue LEDs. We had red and green since the '60s, but blue took until the '90s to figure out and the guy who did so got a Nobel prize for it because that finally meant we could use them for white lights and full-color displays.
Replying to @grue@lemmy.world
It’s also opened the door to some very interesting synthetic chemistry applications that use blue light, it’s changed the field of photochemistry