🚀 go-pugleaf

On Apr 18, 5:47 am, Pentcho Valev <pva...@yahoo.com> wrote:
> On Apr 17, 12:53 pm, Pentcho Valev <pva...@yahoo.com> wrote:
>
>
>
> > On Apr 9, 9:03 am, Pentcho Valev <pva...@yahoo.com> wrote:
>
> > > Silly old interpretations of "redshift is due to a change in
> > > wavelength" can only make clever cosmologists sick at heart:
>
> > >http://www.amazon.com/Brief-History-Time-Stephen-Hawking/dp/0553380168
> > > Stephen Hawking, "A Brief History of Time", Chapter 3:
> > > "In the 1920s, when astronomers began to look at the spectra of stars
> > > in other galaxies, they found something most peculiar: there were the
> > > same characteristic sets of missing colors as for stars in our own
> > > galaxy, but they were all shifted by the same relative amount toward
> > > the red end of the spectrum. To understand the implications of this,
> > > we must first understand the Doppler effect. As we have seen, visible
> > > light consists of fluctuations, or waves, in the electromagnetic
> > > field. The wavelength (or distance from one wave crest to the next) of
> > > light is extremely small, ranging from four to seven ten-millionths of
> > > a meter. The different wavelengths of light are what the human eye
> > > sees as different colors, with the longest wavelengths appearing at
> > > the red end of the spectrum and the shortest wavelengths at the blue
> > > end. Now imagine a source of light at a constant distance from us,
> > > such as a star, emitting waves of light at a constant wavelength.
> > > Obviously the wavelength of the waves we receive will be the same as
> > > the wavelength at which they are emitted (the gravitational field of
> > > the galaxy will not be large enough to have a significant effect).
> > > Suppose now that the source starts moving toward us. When the source
> > > emits the next wave crest it will be nearer to us, so the distance
> > > between wave crests will be smaller than when the star was stationary.
> > > This means that the wavelength of the waves we receive is shorter than
> > > when the star was stationary. Correspondingly, if the source is moving
> > > away from us, the wavelength of the waves we receive will be longer.
> > > In the case of light, therefore, means that stars moving away from us
> > > will have their spectra shifted toward the red end of the spectrum
> > > (red-shifted) and those moving toward us will have their spectra blue-
> > > shifted."
>
> > Similar idiocies:
>
> >http://www.sciam.com/article.cfm?id=does-dark-energy-exist
> > "Astronomers find, for example, that the light from distant galaxies
> > is redder than that of nearby galaxies. This phenomenon, known as
> > redshift, is neatly explained as a stretching of light waves by the
> > expansion of space."
>
> Even greater idiocies (Einsteinians know no limits):
>
> http://www.nature.com/nature/journal/v458/n7238/full/458587a.html
> Nature 458, 587-589 (2 April 2009): "What about dark energy? The
> observation that the expansion of the Universe is speeding up, instead
> of slowing down owing to the mutual gravitational attraction of
> matter, indicates that there is much more to the Universe than we
> understand at present. The leading interpretation is that the Universe
> is filled by something dubbed dark energy that ’antigravitates’.
> Whereas the possibility for gravitational repulsion does not exist in
> Newtonian gravity, it does exist in general relativity. The
> equivalence between matter and energy means that gaseous pressures
> caused by thermal molecular motions can be a source of gravitational
> fields. The gravitational field of a fluid with sufficiently negative
> pressure is repulsive. Although it may be difficult to imagine how
> molecular motions can give rise to a negative pressure, it has been
> realized that some of the quantum fields that arise in elementary-
> particle theory allow for fluids with negative pressure. Dark energy
> is thus simply the negative-pressure fluid that is postulated to
> account for cosmic acceleration."
>
> Pentcho Valev
> pva...@yahoo.com

"There is more in Heaven and Earth than are dreamed of in your tiny
little mind, Pentcho up hostilities."