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.
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.
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.
They still use them today in some supermarkets, now they use them to send packets of cigarettes through the store.
That’s actually a pretty good use. In my local market they send the person to a separate counter.
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?
Prague had a large pneumatic post system which operated for 100+ years.
Roosevelt Island in New York City uses pneumatic tubes for trash collection!
Ironically, it actually sucks less than the famously terrible way the rest of the city does it.
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.
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
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.
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.
I like the look of vacuum-fluorescent displays (VFDs) – a high-contrast display with a black background, solid color areas. Enough brightness to cause some haloing spilling over into the blackness if you were looking at it. Led to a particular design style adapted to the technology, was very “high-tech” in maybe the 1980s.
OLEDs have high contrast, and I suppose you could probably replicate the look, but I doubt that the style will come back.
https://en.wikipedia.org/wiki/Vacuum_fluorescent_display
EDIT: A few more car dashboards using similar style:
https://s3.amazonaws.com/skillshare/uploads/session/tmp/50c99738
https://www.pinterest.com/hudsandguis/retro-car-dashboards/
And some concept cars with similar dash:
https://www.hudsandguis.com/home/2022/retro-digital-dashboards
Some other devices using VFDs:
My kid’s car is like this. I’ve been calling it retro-futuristic, which I think is a pretty apt description.
Many receivers and amplifiers still have VFDs to this day. I still wonder why, LCD has to be significantly cheaper.
They look cool as hell though, so I appreciate that they go the extra step.
Newer, but I quite like the gentle amber LCD (not LED) displays of my car. At night it’s bright enough and sharp enough without being visually loud. I wish more of these displays were still being made, I’d love to use them in car-centric Arduino projects and data displays that would be consulted at night or that sort of thing.
I always ask my friends “How the fuck do you live like this?” when I hop into a car and the music UI is a garish color searing itself into my retinas permanently.
Thankfully, advertising companies have identified this marginal comfort I find in the warm interior lighting of my car and have proceeded to mount insultingly blinding screens all over the city.
The city being the midrise urban sprawl north of Beirut. What do you mean regulations on brightness habibi? You think you live in Paris? Imagine this: half the street is unlit because the power is out, but the advertising company’s invasive bullshit budget™ has enough foreign cash to burn to keep generators running all night for these shitty ads. Gotta beam an extra few kilowatts of photons straight into this sleepy driver’s eyeballs while they operate a motor vehicle, on a highway that a lot of people cross by foot. There’s a special on fish at the fancy supermarket, how will I live without that knowledge?
Thankfully, the “state” of Israel has identified that the civilian structures of Lebanon mildly inconvenienced me, and has proceeded to
Newer, but I quite like the gentle amber LCD (not LED) displays of my car. At night it’s bright enough and sharp enough without being visually loud. I wish more of these displays were still being made, I’d love to use them in car-centric Arduino projects and data displays that would be consulted at night or that sort of thing.
Not sure if you mean VFDs or amber LCDs, but Matrix Orbital sells both sorts in small quantities that you’d use in a project and can interface to a microcontroller – I was interested in them myself when looking for small VFDs, years back. They’re going to be segmented alphanumeric or grid displays, though, not things with physical custom display elements like those car dash things, but that’s kinda part and parcel of small-run stuff.
https://www.matrixorbital.com/
https://www.matrixorbital.com/blc2021
Just choose the “amber” option if it’s an amber LCD you want.
Can also get their displays via Mouser or Digikey.
That’s exactly the kind of display I’m talking about. Nice to see they’re still around.
The ones I have are all just grids, higher resolution than these but still comfortingly blocky. I’ve actually replaced the dash display recently since the original one got deep fried under the sun and lost all contrast when the weather was above 20°C.
As a kid, I had this tabletop video game called “Dracula” that featured a multicolor VFD display. I loved that game.
Cars used to be cool. Every car company had some kind of sporty car, a couple cheap cars, a big luxury sedan and, a while ago, a station wagon.
Now every car is an SUV or CUV. Sedans are getting phased out. Cool sports cars don’t make money so they don’t make them. People don’t buy station wagons so they don’t make them. And they’re pushing big, angry trucks on everyone.
Disney lost their old camera tech used to make a “yellow screen” with sodium vapor lights.
It’s actually better than a green screen because the yellow light is so specific that even if you remove that particular frequency of light, everything else still looks fine. You can do all sorts of things that would normally be very difficult to pull off with any of our green screen tech (like drinking water in a clear bottle or wearing a rainbow dress).
Considering LEDs are so good at producing a very tight wavelength, I wonder if this could be replicated with more energy efficient lamps.
Or if non visible spectrum lights can be used to make similar alpha channel masks that don’t affect lighting the scene.
A laser, maybe, but definitely not LEDs. Vapor/gas lamps produce the narrowest frequency bands possible, because it comes from very well defined atomic transitions (Hz range). LEDs produce frequency bands with widths in the GHz/THz range, while semiconductor lasers can maybe reach KHz if they are really good. So, unfortunately, for this type of applications, vapor lamps would probably still be needed.
Source: I work with lasers and spectroscopy.
Edit: very good idea about using non-visible light!
Is there some filter that you could put up over the LEDs that would block everything but a very narrow frequency of light?
Steam locomotives. The crazy streamlining, the size of some of those motherfuckers. 6 foot tall wheels, 100 tons moving at 125mph and all that shit accomplished 80+ years ago
Also, when they catastrophically failed they wound up looking like industrial lovecraftian horrors and produced some of the loudest non-nuclear man made explosions.
None of which is a good thing, but is still pretty cool.
