twovests

twovests wrote

Reply to comment by flabberghaster in If light is just electromagnetic waves, and color is just different frequencies of light, and we can make radio waves at arbitrary frequencies, why can't we create visible light of arbitrary pure colors? by flabberghaster

I don't know a lot about lasers and orientation!

But yeah, tunable lasers cost a lot of money. Like, price-not-listed-call-us-for-a-quote prices. As I understand, argon ion lasers could emit most of the frequency spectrum.

Definitely going to revisit this thread if I happen to run into someone who knows more lol

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twovests wrote

Reply to If light is just electromagnetic waves, and color is just different frequencies of light, and we can make radio waves at arbitrary frequencies, why can't we create visible light of arbitrary pure colors? by flabberghaster

This is what a laser does, through "stimulated emission" (i am not joking, that is what it's called) of electromagnetic radiation!

Also look into "masers" or "spasers".

But other than that, no idea. I speculate it's really difficult to do that within the ~500 terahertz frequency (visible light?) Wifi radiation is at ~5 gigahertz and radios are at ~kilohertz.

All the light emitters I know of use fixed-frequency emitters. Phoshpors, etc.

https://en.wikipedia.org/wiki/Tunable_laser It seems there are some "tunable lasers", and reading on these shows me some (new!) research into tunable phosphors: https://pubs.rsc.org/en/content/articlelanding/2018/dt/c8dt01991f

The abstract cites displays as an example!

I like this question!

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twovests wrote (edited )

Reply to How many postmills exist? by flabberghaster

Oh!! I used to keep track of these. Here's a list using the same methods I used prior:

Postmills:

  • Raddle, of course
  • The one with neo-nazis (r****e dot pw).
  • A Chinese frontend dev who uses a Postmill instance to post a GitHub instance.
  • https://cyber.report/, an invite-only Cybersecurity news site, similar to the above.
  • A Portuguese language TTRPG forum
  • A few smaller ones that seem to have no posts or members (kini)
  • jstpst!! just post is the very best place, the very best place to post, just post is the very best place, the very best place to post
  • jstpst is the very best place
  • the very best place to post

Ones which went down

  • Babble (no idea what it was tbh)
  • gamergrounds

Secret deployments:

  • eye2p
  • "dntpst", which nobody can access, not even the admin.)

I haven't checked any Postmill mirrors on the Gits to see if they point to existing instances.

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twovests wrote

Reply to comment by flabberghaster in watching twitter implode is pretty fun tbh by hollyhoppet

I agree on the high-profile hack/outage being plausible, and I'd argue that would be the most likely thing to kill Twitter.

Twitter is definitely full of entangled arcane hacks that keep it running. There's definitely people working there who relied on shifting knowledge that was never written down anywhere.

"Twitter just stops working forever" is a very plausible outcome! I'm so excited!

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