this post was submitted on 23 Oct 2024
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I don't mean BETTER. That's a different conversation. I mean cooler.

An old CRT display was literally a small scale particle accelerator, firing angry electron beams at light speed towards the viewers, bent by an electromagnet that alternates at an ultra high frequency, stopped by a rounded rectangle of glowing phosphors.

If a CRT goes bad it can actually make people sick.

That's just. Conceptually a lot COOLER than a modern LED panel, which really is just a bajillion very tiny lightbulbs.

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[–] magnetosphere@fedia.io 186 points 2 weeks ago (6 children)

Pneumatic tubes were way, way cooler than email.

Of course, you could only use them to send a message to someone in the same office building, so the comparison isn’t perfect… but you know what I mean.

[–] Omega_Jimes@lemmy.ca 52 points 2 weeks ago (2 children)

I'm not crazy old, but I'm old enough that the supermarket I went to as a kid had these at all the checkout aisles and the cashiers would use them to send cheques/reciepts/ whatever.

It was awesome to see.

[–] ghashul@feddit.dk 23 points 2 weeks ago (1 children)

They still use them today in some supermarkets, now they use them to send packets of cigarettes through the store.

[–] Omega_Jimes@lemmy.ca 8 points 2 weeks ago (1 children)

That's actually a pretty good use. In my local market they send the person to a separate counter.

[–] 5wim@slrpnk.net 17 points 2 weeks ago (1 children)

Very cool, I've never seen the ones that can send a person. Can they breathe in transit?

[–] Cenzorrll@lemmy.world 7 points 1 week ago* (last edited 1 week ago) (1 children)

It's pneumatic, not vacuum. Geez.

[–] 5wim@slrpnk.net 3 points 1 week ago

Making it dangerous to smoke while in transit. I see why the people ones didn't catch on in the 50s.

[–] dharmacurious@slrpnk.net 11 points 2 weeks ago (3 children)

Okay, maybe my town is just not up to date, but these are still in use at all the banks and pharmacies where I live. Are they phased elsewhere?

[–] Omega_Jimes@lemmy.ca 6 points 2 weeks ago

I haven't seen one in years, but the fact that they're all used is awesome.

[–] FlyingSquid@lemmy.world 1 points 1 week ago

The Kroger pharmacy here replaced their awesome pneumatic tube with a boring sliding drawer.

[–] kilgore_trout@feddit.it 1 points 1 week ago (1 children)

They are used in some hospitals in central Europe

[–] Kryptonidas@lemmy.wtf 1 points 1 week ago

In the Netherlands I see them in nearly every big hospital. I think for sending blood samples to the lab quickly. (Possibly among other things)

[–] SGforce@lemmy.ca 32 points 2 weeks ago (2 children)

Some downtown big cities had the buildings interconnected.

[–] thehatfox@lemmy.world 30 points 2 weeks ago (1 children)

Prague had a large pneumatic post system which operated for 100+ years.

Prague pneumatic post.

[–] magnetosphere@fedia.io 4 points 1 week ago

I had no idea there were systems that spanned entire cities! Thanks for the link!

[–] tnarg42@lemmy.world 22 points 1 week ago (3 children)

Big hospitals still have them to send medications and random lightweight stuff around the complex. My wife has worked in two large hospitals that had pretty extensive tube systems, used especially with pharmacy.

[–] JackFrostNCola@lemmy.world 5 points 1 week ago* (last edited 1 week ago) (1 children)

Tom Scott does a youtube video about one in Canada (IIRC) where they send radioactive medicine from the lab a down the road to a hospital due to the half life of the medication making traditional transport (ie vehicles) impractical.

Edit: bothered to look it up

[–] fermionsnotbosons@lemmy.ml 2 points 1 week ago

I know of a hospital where the local university sends tracers with F-18 for PET scans in much the same way. Half-life of 110 minutes.

[–] aimizo@lemmy.world 2 points 1 week ago

My Walmart has them for a pharmacy drive thru.

[–] Jiggle_Physics@lemmy.world 1 points 1 week ago

The two major hospitals, relatively near me, use a combination of tubes, and robots, to dispense medications. One is working on completely robotic food service, and has completely robotic floor cleaning/polishing. Both, also, have robots that do the basic landscaping maintenance, like mowing/edging. There is more, it is interesting to walk around and see all these infrastructure systems work. Feels, at least partially, like the promised future of sci-fi.

[–] CrayonRosary@lemmy.world 4 points 1 week ago (2 children)

Before ATMs, bank drive-throughs (the ones with multiple lanes for cars) had pneumatic tubes to send cash and checks to the bank teller, or receive cash.

Some probably still do. I feel like I used one within the past 10 years.

[–] MrShankles@lemmy.world 3 points 1 week ago

They're still in use at most banks where I live. Most hospitals use them too; way faster than dumbwaiters

[–] magnetosphere@fedia.io 2 points 1 week ago

I remember those! I wouldn’t be surprised if they’re still in use. I’ve never used the drive-through lane at my bank. I can deposit checks online by taking a picture of it (which still seems weird to me), and I use the ATM for everything else.

[–] GenosseFlosse@feddit.org 4 points 2 weeks ago

Hate someone in the office? Pour hot coffee into the container and send it to your victim.

[–] BearGun@ttrpg.network 3 points 1 week ago

The factory i work at occasionally still uses them for delivering tests to the lab, pretty cool to hear them swish around in the pipes.