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. The most popular seem to be lighthearted clever little truths, hidden in daily life.
Here are some examples to inspire your own showerthoughts:
If you made it this far, showerthoughts is accepting new mods. This community is generally tame so its not a lot of work, but having a few more mods would help reports get addressed a little sooner.
Whats it like to be a mod? Reports just show up as messages in your Lemmy inbox, and if a different mod has already addressed the report, the message goes away and you never worry about it.
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.
You can still hear it on the radio. Although most of the noise floor is probably man made.
On a CRT? Sure, probably a lot haven't seen it. On a modern TV? Still possible for some - mine does this if I hit the channel button rather than volume accidentally.
Do you think CRTs just magically disappeared after the turn of the millennium?
My family had several tvs that did this until around 2013
My mother had one of these. I got to use it as a hand-me-down as a teenager because my mother was abusive AF.
For clarity, the subject of the TV wasn't the abusive part. Her rationale of "I didn't have one when I was a kid so you don't get to have one while you're a kid" was. It didn't apply just to the TV.
yeah i have
I think they call it "analog horror noise" now, along with vhs cassettes.
...
Feel the passage of time XD
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.
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.
TV static in recent movies and shows that are set in the past almost always instantly pull me out of the narrative because no one seems to be able to get it right and some are just stunningly bad. It's usually very subtle, so much so that I'm not sure I could even describe what's wrong. Makes me feel old to notice it.
I think the problem is because CRT displays didn't have pixels so the uniform noise which is static was not only uniformely spread in distribution and intensity (i.e. greyscale level) but also had "dots" of all sizes.
Also another possible thing that's off is the speed at which the noise changes: was it the 25fps refresh rate of a CRT monitor, related to that rate but not necessarily at that rate or did the noise itself had more persistent and less persistent parts?
The noise is basically the product of radio waves at all frequencies with various intensities (though all low) with only the ones that could pass the bandpass filter of the TV tuner coming through (and being boosted up in intensitity by automatic gain control) and being painted along a phosphorous screen (hence no pixels) as the beam draw line by line the screen 25 times per second so to get that effect right you probably have to simulate it mathematically from a starting point of random radio noise and it can't be going through things with pixels (such as 3D textures) to be shown and probably requires some kind of procedural shader.
Except for that most of it was not.
A lot of the noise on the screen (and speaker) was affected by radiation from nearby stuff.
I'd think that nowadays, it would be even more so, with way more WiFi and mobile phone signals everywhere. Now sure, different frequencies mean they would affect less, but the cumulative effect would still be more than the CMBR.
Also, I have a flat-screen CRT at home.
You mean the attack of the ants?
The sky above the port was the color of television, tuned to a dead channel. - William Gibson, Neuromancer
One of the most beautiful opening lines to a novel.
One of the most beautiful opening lines to a novel.
Abundantly clearly not.
This is it:
“It was a dark and stormy night; the rain fell in torrents—except at occasional intervals, when it was checked by a violent gust of wind which swept up the streets (for it is in London that our scene lies), rattling along the housetops, and fiercely agitating the scanty flame of the lamps that struggled against the darkness."
Torrents >> TV
If you remember that it was written in 1984, the color is obviously black and white static. If you don’t think about the year, you might be lead to believe it is blue.
No one in the last 25 years has ever seen it.
People didn't just mass-destroy CRTs in 1999...
I bought an LCD TV in 2006 (a Sony Bravia that is still going strong) and that was earlier than most people I know switched
Our cable provider (my parents like cable TV) had analog channels even like 2 years ago, but they started encrypting everything which required purging the analog selection.
This sucks. At worst analog would be grainy, digital just keeps cutting out in worse conditions.
I wish there was also still analog OTA TV for this reason. Much easier to pick up usable signal.
Sixth and Seventh Generation video game consoles were still using scart/composite/component outputs for CRT up until their discontinuation in 2017 so I’m pretty sure a lot of kids would have had a CRT to game on as well was watch TV in their rooms.
Remember, kids typically get the hand me downs when the adults get new shiny.
No one in the last 25 years has ever seen it.
I mean you can still find a CRT today and turn it on if you like, they're less common for sure, but they're still around if you're looking for one
Kids born after 2000 aren’t looking for one
Dude I'd kill for the opportunity to get my hands on a half-decent CRT
You'd be surprised, some people born in the 2000s want them for the retro factor now
Well that's a lie, I know an early 20 year old who's into retro games and has definitely been to an arcade with CRTs in the past year or so. It's not a stretch to imagine he's seen static on one
CRTs was in use well into the 2000s
Technically, it's not about the display technology, but instead about the signal/tuner. More specifically if it's analog or digital. Some modern TVs still have analog or hybrid tuners for backwards compatibility and regions that still use analog, so they can display static. For instance, in Ukraine we finished the switch to digital TV only a couple of years ago. If your TV had no digital tuner (as was the case for many) you had to buy a DAC box. Retirees/pensioners got them for free, sponsored by the government.
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.
What are they hiding from us?!
My memory of the exacts here are fuzzy, but I think this depended on whether or not your TV picked up digital signal, analog, or both. I remember around that time we had a TV that would pick up static on some channels and have a blue input screen on others.
It's definitelly an analog over the air TV thing.
The way digital works you would either get a "No signal" indicator (because the circuitry detects the signal to noise ratio is too low) or squarish artifacts (because of the way the compression algorithms for digital video are designed).
I'm talking long before digital channels existed. (In the US anyway)
Yeah I was still using a CRT as recently as 2012. I think OP means analogue TVs.
Yeah, my youngest sibling has definitely seen CRTs. My niblings probably haven’t, though.
I thought they were teaching it in all the schools? /s
Born 2000, yes i have. So has my younger brother