this post was submitted on 28 Sep 2023
337 points (98.8% liked)

Technology

59099 readers
5287 users here now

This is a most excellent place for technology news and articles.

Our Rules

  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago
MODERATORS
L3s
[email protected]
[email protected]
L4s
enu
337
Scientists confirm that the first black hole ever imaged is actually spinning (www.engadget.com)
submitted 1 year ago by L4s to c/technology
42 comments fedilink hide all child comments
 

Scientists confirm that the first black hole ever imaged is actually spinning::The first black hole humanity has ever imaged has also provided us with what researchers are calling "unequivocal evidence" that black holes spin.

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 15 points 1 year ago (1 children)

I guess the next questions would be

  1. How fast? Really fast? Does this question even make sense?
  2. What does this say about the inside of the event horizon? Does it say anything? Is this black hole leaking real information?
  3. Is black hole spin quantized like quantum spin? Is it spin-up or spin-down?
[–] anlumo 26 points 1 year ago (3 children)

Quantum Physics “spin” has nothing to do with actual spinning. It’s just a weirdly named property of particles.

[–] grabyourmotherskeys 8 points 1 year ago (1 children)

I've always thought that they should have just named the properties something like P1, P2, etc. So there's no connotation.

[–] [email protected] 2 points 1 year ago

Spin is a form of angular momentum, so there is a reason for the name. It’d be a pain in the butt to learn if properties didn’t have catchy names too.

[–] [email protected] 1 points 1 year ago (1 children)

I thought "spinning" was meant rather literally in this case and not in some quantum sense

[–] anlumo 1 points 1 year ago

For black holes, it does refer to actual spinning. Particles are the ones not really spinning.