Sujet : Re: Galaxies don't fly apart because their entire frame is rotating
De : chris.m.thomasson.1 (at) *nospam* gmail.com (Chris M. Thomasson)
Groupes : sci.physics.relativityDate : 12. Apr 2024, 21:52:47
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <uvc6v0$2i4e2$3@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13
User-Agent : Mozilla Thunderbird
On 4/12/2024 1:50 PM, Chris M. Thomasson wrote:
On 4/11/2024 10:45 PM, Thomas Heger wrote:
[...]
To measure the position of a star in one billion light years distance you need to wait a billion years, before you can actually see the light emitted from that star.
>
Because that is impossible, we simply don't know to were those stars went in the meantime.
Think of taking a look at a star A that is say, 100 light years from Earth. Now, look at some other stars around it and try to create a little map. Okay, now jump to the star A right now. Well, that star is most likely to be in a radically different place, or even dead via supernova we have had a chance to detect yet. The map is going to be
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
or even dead via supernova we have _NOT_ had a chance to detect yet..
Damn typos!
meaningless.
[...]
Jump to star A that we can see, only to find out that it died.
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