Davoud's latest topic got me thinking


Davoud asked, "Where Does Light Come From?" The most basic and "catch all"
answer I can think of is this: It comes from matter (thanks Albert
Einstein?).

Warning. . .here comes a segue!

The nearly infinitesimal larger part of the universe would seem void of any
appreciable light, save for perhaps extremely distant and faint galaxies
here and there. The vastness of the distances between stars in a galaxy is
dwarfed by the distances between the galaxies themselves. . .and visible
light to our eyes -- the light necessary to read a newspaper -- is relative
to the matter, and proximity to that matter, within a galaxy.


--
Martin R. Howell
Moderated sci.astro.amateur
www.moderatedsciastroamateur.org

--
Posted via a free Usenet account from http://www.teranews.com

.

Relevant Pages

  • Re: Getting out of this world?
    ... On sub-atomic level things get weird, ... vaguely recall - I'm clueless about physics) that distances don't ... whether from brain to ... if enough of this magical matter happens to coalesce into a particular ...
    (rec.arts.sf.science)
  • Re: Endurance on long rides?
    ... same route that I liked, back when I had a road bike and lots of time. ... Really long distances were easier in a light rain, ... Today with my MTB it would probably be another matter. ...
    (rec.bicycles.tech)
  • Re: Hawking and distance of stars
    ... > of the matter is that all astronomers realize that they can say almost ... The fact of the matter is that geunine scientists are not, as a whole, as ... The fact is that the geometrical calculations verify the distances. ...
    (talk.origins)
  • Re: Davouds latest topic got me thinking
    ... answer I can think of is this: It comes from matter (thanks Albert ... The vastness of the distances between stars in a galaxy is ... Milky Way, M31, M81, M33. ...
    (sci.astro.amateur)
  • Re: Do dark matter calculations make the stupid assumption that all mass is at the center of the gal
    ... expected galaxy rotation speed curves that show that there must be dark ... mass in the galaxy make the assumption that all of the mass of the ... As long as you're in the plane of your galaxy, the matter outside your ... star's orbit you can more or less ignore. ...
    (sci.physics)