A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. A showerthought should offer a unique perspective on an ordinary part of life.
The static on old CRT TVs with rabbit ears was the cosmic microwave background. No one in the last 25 years has ever seen it.
People born after 2000 can see it on their phones, much more clearly:
2007er here, I grew up with a CRT as the TV in our second living room, I'd occasionally watch stuff like Bob the builder and others, but since it was all on analog tv, channels started displaying lots of static, pretty much only like 2 or 3 channels were working last I saw.
Also we had that CRT TV until 2018, then chucked it in the store room, then threw it out in 2020, I kinda miss it, kinda don't, idk.
People born before 2000 think older technology just evaporated the minute the millenium ticked over.
Like when the black and white world suddenly got colorized! My grandpap told me about them old days - when the lawn, the sidewalk and the sky were just different shades of gray.
Grandpa was telling you about 50 shades of grey?
2001 here literally grew up with CRT static, you have your years a bit off there.
I was about to say, i think we had a CRT till about 2010. My grandma still has one upstairs so even my youngest cousins still grew up with it.
It really isn't though. It is thermal noise.
Random radio sources, but a small part of the signal is CMB. I wasn't sure what you even meant by thermal noise but I believe it's a phenomenon of flatscreens. I found something that said it was "similar to snow on analog TVs" - so apparently there's a difference.
Funnily, Google AI says, "In the 1940s, people could detect the CMB at home by tuning their TVs to channel 03 and measuring the remaining static after removing other sources. This allowed them to prove the Big Bang before scientists did." So they had that going for 'em, which is nice.
"Thermal Noise" is a phenomenon where everything makes EM noise, just from thermal energy.
If you were to put such a TV in a faraday cage, with an RF termination, you would see something similar. Because noise is inherently part of the circuitry and amplifiers.
Could it not be both?
Last time I thought about static I wondered why colour TV didn't show colour static.
Turns out the colour signal was on very specific frequencies, and if it wasn't present, it would assume it was a black and white signal and turn off the colour circuit.
The sky above the port was the colour of television, tuned to a dead channel...........
They haven't?
I have a TV from ~2010 that still gives me static when something isn't connected.
You mean scrambled porn, right?
Cosmic microwave? Is that what you are calling "ants in a snowstorm" these days?
"War of the Ants", where I'm from (sweden).
Ask your friend which side is winning, say you're rooting for the black ants, then turn off the TV and claim victory.
ok Sweden wins this one
Ant races
Tube TV's remained in common service well into the 2010's. The changeover from analog to fully digital TV transmission did not happen until 2009, with many delays in between, and the government ultimately had to give away digital-to-analog tuner boxes because so many people still refused to let go of their old CRT's.
Millions of analog TV's are still languishing in basements and attics in perfect working order to this very day, still able to show you the cosmic background, if only anyone would dust them off or plug them in. Or in many retro gaming nerds' setups. I have one, and it'll show me static any time I ask. (I used it to make this gif, for instance.)
In fact, with no one transmitting analog television anymore (probably with some very low scale hobbyist exceptions), the cosmic background radiation is all they can show you now if you're not inputting video from some other device. Or unless you have one of those dopey models that detects a no-signal situation and shows a blue screen instead. Those are lame.
Amateur radio operators are indeed allowed to transmit analog NTSC television in the UHF band. It's most commonly done on the 70cm (440MHz) band, and a normal everyday 90's television is all you need to receive the signals. You'd tune to what would have been cable channels 57 through 61. The use cases for this have decreased in recent years; for example you used to see hams using amateur television to send video signals from RC aircraft or model rockets, now that's done with compressed digital video over something like Wi-Fi and doesn't require a license. But, it's still legal for hams to do.
It is entirely possible for people born after 2000 to have grown up with CRTs.
Well, not really. The cosmic microwave background radiation was a tiny fraction of that noise. What everyone saw was mostly thermal noise generated by the amplifier circuit inside the TV.
Say that to my three CRTs. I was born in 2003.
Do you think CRTs just magically disappeared after the turn of the millennium?
2002 here, we still had such a TV. For quite a while actually, since we never upgraded and just started using phones and computers instead. It became my console monitor.
Well, if they had watched any HBO show, they kind of saw it !
I still see it sometimes when connecting my Steam Deck to my TV
Dude I was born after 2000 and this is firmly planted in my memories. Maybe people born after 2010 haven't but 2000?
CRTs was in use well into the 2000s
Even before the 2000s they started showing a blue screen instead of static.
That wasn't just a digital or flat panel thing.
But of course old sets were around for a long time.
I bought a plasma in 2009 that would show static if I turned it to cable channels without cable plugged in. Plasmas were susceptible to burn in and since I would game a lot I could see health bars etc start to burn in after a while. Whenever that would happen I would turn it to the static screen - making each pixel flip from one end of the spectrum to the other rapidly like that would actually help remove the burn in.
"The sky above the port was the color of television, tuned to a dead channel." - William Gibson, Neuromancer
Gibson describes the static as metallic, silvery gray in an interview.
"The sky was the perfect untroubled blue of a television screen, tuned to a dead channel." - Neil Gaiman, Neverwhere
I remember the white static myself.
If they ever watch Poltergeist they'll know it's the TV people trying to get out.
Dude Flatscreen HDTVs were expensive even in 2008, and cable actually got worse for higher price so most people were hooked into local broadcast.
By the way, the picture illustrating the post isn't actually displaying the real thing - the noise in it is too squarish and has no grey tones.
That's not background, that's a free channel that showcases a polar bear in a snowstorm.
