this post was submitted on 14 Nov 2024
481 points (91.3% liked)

Showerthoughts

29677 readers
1621 users here now

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.

Rules

  1. All posts must be showerthoughts
  2. The entire showerthought must be in the title
  3. Avoid politics
    1. NEW RULE as of 5 Nov 2024, trying it out
    2. Political posts often end up being circle jerks (not offering unique perspective) or enflaming (too much work for mods).
    3. Try c/politicaldiscussion, volunteer as a mod here, or start your own community.
  4. Posts must be original/unique
  5. Adhere to Lemmy's Code of Conduct-----

founded 1 year ago
MODERATORS
 

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.

top 50 comments
sorted by: hot top controversial new old
[–] DrownedRats@lemmy.world 21 points 4 hours ago (1 children)

People born before 2000 think older technology just evaporated the minute the millenium ticked over.

[–] LovableSidekick@lemmy.world 7 points 3 hours ago* (last edited 3 hours ago)

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.

[–] AlDente@sh.itjust.works 2 points 2 hours ago

You mean scrambled porn, right?

[–] bonn2@lemm.ee 11 points 4 hours ago (1 children)

2001 here literally grew up with CRT static, you have your years a bit off there.

[–] TwanHE@lemmy.world 2 points 3 hours ago

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.

[–] PagingDoctorLove@lemmy.world 3 points 3 hours ago

They haven't?

I have a TV from ~2010 that still gives me static when something isn't connected.

[–] r_deckard@lemmy.world 7 points 4 hours ago

The sky above the port was the colour of television, tuned to a dead channel...........

[–] pocker_machine@lemmy.world 3 points 4 hours ago

Well, if they had watched any HBO show, they kind of saw it !

[–] Socsa@sh.itjust.works 11 points 6 hours ago (2 children)

It really isn't though. It is thermal noise.

[–] LovableSidekick@lemmy.world 3 points 3 hours ago* (last edited 3 hours ago) (1 children)

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.

[–] piecat@lemmy.world 2 points 2 hours ago

"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.

[–] RememberTheApollo_@lemmy.world 3 points 4 hours ago

Could it not be both?

[–] LovableSidekick@lemmy.world 2 points 3 hours ago* (last edited 3 hours ago)

If they ever watch Poltergeist they'll know it's the TV people trying to get out.

[–] melvisntnormal@feddit.uk 3 points 4 hours ago

I still see it sometimes when connecting my Steam Deck to my TV

[–] Blackmist@feddit.uk 14 points 6 hours ago

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.

[–] puppycat@lemmy.blahaj.zone 1 points 3 hours ago* (last edited 3 hours ago)

uhhh, yes i have? I'm pretty sure some of my younger cousins have lol

[–] mlg@lemmy.world 2 points 4 hours ago

Dude Flatscreen HDTVs were expensive even in 2008, and cable actually got worse for higher price so most people were hooked into local broadcast.

[–] HEXN3T@lemmy.blahaj.zone 7 points 6 hours ago

Say that to my three CRTs. I was born in 2003.

[–] Bytemeister@lemmy.world 7 points 6 hours ago (2 children)

Cosmic microwave? Is that what you are calling "ants in a snowstorm" these days?

[–] bitwaba@lemmy.world 1 points 3 hours ago

Salt and pepper fighting.

[–] kingvolcano@lemmy.world 4 points 5 hours ago (3 children)

"War of the Ants", where I'm from (sweden).

[–] shadow_wanker@lemmy.world 3 points 4 hours ago

Ask your friend which side is winning, say you're rooting for the black ants, then turn off the TV and claim victory.

[–] pyre@lemmy.world 3 points 4 hours ago

ok Sweden wins this one

[–] PriorityMotif@lemmy.world 2 points 5 hours ago
[–] Mr_Peartree@lemm.ee 2 points 5 hours ago* (last edited 5 hours ago)

Umm… I had a CRT until 2009 and even sold it to someone.

Was it just me or has anyone seen or make out patterns while staring at it? I sometimes found it amusing

[–] dual_sport_dork@lemmy.world 21 points 10 hours ago* (last edited 10 hours ago) (2 children)

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.

[–] RaoulDook@lemmy.world 2 points 6 hours ago

I think my mom still uses the last CRT TV that I had. Gave it to her when I bought my first 720p HD TV, as the old CRT was better than her old TV. Later on I also gave her that HD TV but she still has the CRT too.

[–] LANIK2000@lemmy.world 12 points 9 hours ago (4 children)

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.

load more comments (4 replies)
[–] possiblylinux127@lemmy.zip 33 points 12 hours ago (2 children)

It is entirely possible for people born after 2000 to have grown up with CRTs.

load more comments (2 replies)
[–] tkk13909@sopuli.xyz 13 points 10 hours ago

Dude I was born after 2000 and this is firmly planted in my memories. Maybe people born after 2010 haven't but 2000?

[–] Barzaria@lemmy.dbzer0.com 11 points 11 hours ago

"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.

[–] pineapplelover@lemm.ee 3 points 8 hours ago

I have actually, we had a big old crt tv way back when

[–] ViscloReader@lemmy.world 3 points 8 hours ago

As person born after 2000, I used to play a lot of games on them Wii and GameCube mainly. The image and responsiveness really felt different. I do kinda miss them

[–] Sam_Bass@lemmy.world 5 points 9 hours ago

Many likely haven't seen a channel sign off for the night with a test pattern up til they come back on

[–] Sylvartas@lemmy.world 5 points 9 hours ago (1 children)

Also, a lot of kids don't have the slightest idea of what the "save" icon in their apps represents. They just know it's the save icon because it's everywhere

[–] dch82@lemmy.zip 3 points 8 hours ago* (last edited 8 hours ago)

To be fair though, many kids nowadays have never seen a save icon as autosave is now practically everywhere. For example take anything on an iPad or other touch device.

[–] TheBrideWoreCrimson@sopuli.xyz 5 points 9 hours ago* (last edited 9 hours ago) (1 children)

DAE remember that movie White Noise? The climax was fucking horrifying and I have to admit that it haunted me for quite a while.
For better or worse, kids today probably won't get it.

load more comments (1 replies)
[–] JusticeForPorygon@lemmy.world 70 points 16 hours ago (8 children)

Do you think CRTs just magically disappeared after the turn of the millennium?

[–] Hobbes@startrek.website 2 points 6 hours ago

No, I just couldn't remember exactly when. And as another commenter pointed out, what I should have said was analog TV's.

load more comments (7 replies)
load more comments
view more: next ›