Yukterez
Expansion of Space, not Spacetime
Space and time do form spacetime in general relativity, but it is a common misconception to talk about an expanding spacetime instead of an expanding space in cosmology, see
- Albert Einstein: The Expansion Of Space
- Dave Goldberg: Universal Misconceptions 1: Expanding Time
- Davis & Lineweaver: Expanding Confusion Page 5
- Leonard Susskind: Lecture Notes 8
- Leonard Susskind: Cosmology II
- Alan Guth: The Early Universe V
- The metric expansion of space
In an expanding space the distance between points grows with time, while an expanding spacetime would imply that even the duration between events would grow, which is discussed in non-mainstream theories like
but not in standard cosmology. Therefore all articles which confused space with spacetime were fixed.
-- 
❇ 21:20, 5 February 2016 (CEST)
A barnstar for you!
 | The Defender of the Wiki Barnstar |
| For your correction of the "spacetime" issue and for the creation of animations that convey the comoving universe - To which I still have trouble conceptualizing, despite your animation. I nonetheless, commend you. We need more clear thinkers like you. Boundarylayer (talk) 13:32, 4 February 2017 (UTC) |
Political echochamber
When I was younger, I used to have a liberal bias myself. Now that I've grown older I see things a litte more differentiated and do no longer support Wikipedia's far left political agenda. Therefore I will in future rather work on my own site instead and leave the articles about physics in the hands of those who ruined the articles about politics. Farewell, -- ❇ (talk) 20:01, 14 February 2019 (UTC)
I have sent you a note about a page you started
Hello, Yukterez. Thank you for your work on Kerr–Newman–de–Sitter metric. User:SunDawn, while examining this page as a part of our page curation process, had the following comments:
Thank you for writing the article on Wikipedia! I genuinely appreciate your efforts in creating the article on Wikipedia and expanding the sum of human knowledge in Wikipedia. Wishing you and your family a great day!
To reply, leave a comment here and begin it with {{Re|SunDawn}}. Please remember to sign your reply with ~~~~. (Message delivered via the Page Curation tool, on behalf of the reviewer.)
✠ SunDawn ✠ (contact) 04:22, 12 October 2023 (UTC)
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