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
I remember when the only color laser pointer was red. Now you have all the colors of the rainbow.
Replying to @glitch1985@lemmy.world
And damn powerful. So powerful you get almost every time wayyy more than allowed/advertised.