82
Astronomers Just Calculated The Spin Speed of a Supermassive Black Hole
(www.sciencealert.com)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 25 May 2024
82 points (100.0% liked)
Space
8112 readers
43 users here now
Share & discuss informative content on: Astrophysics, Cosmology, Space Exploration, Planetary Science and Astrobiology.
Rules
- Be respectful and inclusive.
- No harassment, hate speech, or trolling.
- Engage in constructive discussions.
- Share relevant content.
- Follow guidelines and moderators' instructions.
- Use appropriate language and tone.
- Report violations.
- Foster a continuous learning environment.
Picture of the Day
The Busy Center of the Lagoon Nebula
Related Communities
๐ญ Science
- [email protected]
- [email protected]
- [email protected]
- [email protected]
- [email protected]
- [email protected]
- [email protected]
- [email protected]
- [email protected]
๐ Engineering
๐ Art and Photography
Other Cool Links
founded 1 year ago
MODERATORS
They calculated it, and could only say "less than 25% of C" which isn't even a rotational speed measurement?!? Get bent. If you don't want to say, fine, don't. But don't tell me you've calculated something and then A) not give me that number, and B) give me a number that isn't the number you calculated and can't be used to determine the number you calculated without additional data that you also haven't provided.
What's wrong with it rotating one quarter the speed of light?
Think about how fast a point on the equator of the Earth moves relative to a point a few cm away from the North Pole.
In one full rotation of the Earth, the point on the equator will have traveled 40,000 km, and the point by the North Pole will have traveled a meter.
So... it's that it's a useless way to express rotation.