yogurtwrong@lemmy.world to Asklemmy@lemmy.ml · 5 days agoWhat is something that's crazier than the wildest dreams of any ~1970s nerd, but exists today? I'll start with an easy one:lemmy.mlimagemessage-square75linkfedilinkarrow-up1308arrow-down14
arrow-up1304arrow-down1imageWhat is something that's crazier than the wildest dreams of any ~1970s nerd, but exists today? I'll start with an easy one:lemmy.mlyogurtwrong@lemmy.world to Asklemmy@lemmy.ml · 5 days agomessage-square75linkfedilink
minus-squaregrue@lemmy.worldlinkfedilinkarrow-up47·5 days agoBlue 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.
minus-squareglitch1985@lemmy.worldlinkfedilinkarrow-up7·5 days agoI remember when the only color laser pointer was red. Now you have all the colors of the rainbow.
minus-squarePixeIOrange@lemmy.worldlinkfedilinkarrow-up2·5 days agoAnd damn powerful. So powerful you get almost every time wayyy more than allowed/advertised.
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.
relevant veritasium
I remember when the only color laser pointer was red. Now you have all the colors of the rainbow.
And damn powerful. So powerful you get almost every time wayyy more than allowed/advertised.