Recent comments in /f/todayilearned
rockmsedrik t1_j7lp6ee wrote
Reply to comment by TrumpterOFyvie in TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23
If you wake up to go to the bathroom, sleep disturbed. Gotta turn off and black out those blue lights. Sleep masks are nice, but only helps while you have it on.
TrumpterOFyvie t1_j7loq1p wrote
Reply to comment by rockmsedrik in TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23
Just get a nice pillowy sleep mask. Absolute pitch black heaven.
TrumpterOFyvie t1_j7lomvz wrote
Reply to TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23
I hate blue LED's. My eyes can't focus on them properly. If you show me a red LED ticker alongside a blue one, the red letters are pin sharp to me and the blue letters are blurred as if I'm not wearing glasses.
rockmsedrik t1_j7lnoor wrote
Reply to TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23
Blue LEDs have replaced amber tone activity lights in most electronics, and the disturbance to sleep patterns is evident in everyone’s behaviors globally. I have to tape over nearly every LED on every piece of electronics to tone it down enough. Otherwise it illuminates an entire area if the lights are turned off.
Blue LEDs are the scourge to sleep.
AudibleNod t1_j7lnh15 wrote
Reply to TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23
The inventors won the Nobel Prize.
dougola t1_j7lngct wrote
Reply to TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
If I remember, he wrote the song "Jean" which was very popular and there are a lot of women around named for that song.
undefined7196 t1_j7lndaj wrote
Reply to TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23
The creators of the bright blue led won the Nobel prize in physics for it as it allowed us to create white light LEDs that are now the most energy efficient form of illumination for homes and saves countless billions of dollars in energy costs.
positivecynik t1_j7ln9pe wrote
Reply to TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23
This is really specifically wild for me to stumble onto here. Let me explain. In the early 90s, a few of us in the clubs were into the whole "cyberpunk" movement that was pretty new back then.
Some club denizens went as far as to create electronic apparel, with an LED or two, and one guy even made a skin temp sensor and connected it to an LED bar graph, so the more he exerted himself the higher his temp would show on his arm.
Anyway.... everyone has either red or green or yellow. I wanted a blue. Couldn't find one.
Internet was pretty limited back then, so a lot of shopping in parts stores, catalogs. Etc....
We finally found a supplier in China that manufactured blue LEDs, but we'd have to buy like 250,000. Somehow this dude gets a hold of exactly 5 of them. He worked a deal with a store who ordered the he quantity and let him buy 5.
Craziest thing, the turn on voltage for the ones We used was 6V. So, strapping 4 AAA batteries somewhere on you would give you 6V.
These blue LEDs from China needed 5V.
Took a while, but we figured out that rechargeable batteries output 1.25V, so we used 4 of those to achieve the 5V turn on voltage. The whole thing took about a year while we figured it out.
Haven't thought about it in 30 years. Then I run across this random article telling me exactly why what I tried to do 30 years ago was so difficult.
/endstorybro
SeraxOfTolos t1_j7lmiix wrote
Reply to TIL the first Blue LED wasn't commercially available until 1989 and bright blue LEDs weren't available until 1993. by j-merc23
Blue light was so rare, we didn't have glasses
mojogirl_ t1_j7ll6le wrote
Reply to comment by ITeechYoKidsArt in TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
A 2-for-1 TIL. Thanks!
rofopp t1_j7lkcaa wrote
Reply to TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
Y’all forgot his name. It’s Rod.
SAT0725 OP t1_j7lk6y2 wrote
Reply to comment by jcd1974 in TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
Bukowski might have been close, but he's not terribly female-friendly lol
melance t1_j7liu05 wrote
Reply to comment by NecessaryHuckleberry in TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
"Live Love Laugh" could have been his.
Piece73 t1_j7lhgi2 wrote
jcd1974 t1_j7lfzqm wrote
Reply to TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
Probably the last poet to become a celebrity and household name.
rks404 t1_j7lev2p wrote
Reply to comment by negcap in TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
There's another Too Much Joy song that started as a Rod McKuen poem - "Seasons in the Sun" - it was a cover of a song by Terry Jacks
Terry Jacks https://www.youtube.com/watch?v=-tPcc1ftj8E
Too much Joy: https://www.youtube.com/watch?v=mVwU83bsMAM
MajCassiusStarbuckle t1_j7l6ckv wrote
Reply to TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
What a fascinating character. I know I'd heard the name but reading up now, I didn't really know Jack about Rod.
askmeaboutmysciatica t1_j7l65tu wrote
Reply to comment by Kipsydaisy in TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
Did you go out with her?
SAT0725 OP t1_j7l1exj wrote
Reply to comment by stinking_badgers in TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
Lol nice catch
mindfu t1_j7l0twp wrote
Reply to TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
Wow that was interesting.
stinking_badgers t1_j7l0axt wrote
Reply to TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
And today perhaps you also learned that his name is actually Rod.
Kipsydaisy t1_j7kycjn wrote
Reply to TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
Knew a woman in college who gave me a Rod McKuen poem as a sort of courtship gesture. This was late 90's in a college full of mostly English majors. I knew who he was, but barely, and associated him with (figurative) cheese. Think only time he came up after that was when Gene Ween did a whole album of McKuen poems as songs [someone else mentioned].
RonyTheTiger t1_j7kxfni wrote
Reply to comment by -DementedAvenger- in TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
Ber, we nigma now.
stinking_badgers t1_j7lp9zf wrote
Reply to comment by SAT0725 in TIL about Rob McKuen, the bestselling poet in American history who sold 60 million books and 100 million records but is all but forgotten today by SAT0725
:)