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What's a technology that was cooler in its older iterations? (pawb.social)

submitted 2 months ago* (last edited 2 months ago) by [email protected] to c/[email protected]

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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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[–] [email protected] 30 points 2 months ago (1 children)

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

Prague pneumatic post.

[–] [email protected] 4 points 2 months ago

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