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[Nature] Cosmologist claims Universe may not be expanding - Page 7

post #61 of 65
Quote:
Originally Posted by xeekei View Post

I could've sworn I've been told that all energy in the Universe was constant, since you can't destroy or create energy, only change its form.

ehh im pretty dumb lately and out of the loop but im pretty sure Matter is what cannot be created or destroyed, simply changed
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post #62 of 65
Quote:
Originally Posted by ihatelolcats View Post

you have no doppler effect without relative motion between source and observer. the redshift of light can be explained by an expanding space, not because of distance traveled. see this paper for an in depth explanation on the difference between the two http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1993ApJ...403...28H&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf
with the increasing mass model, the universe is not static but starts with an inflationary period, with later periods either static or shrinking. it's equivalent physically but mathematically it is better in my opinion because it has no singularity at the beginning

Ok so then maybe I'm thinking of it wrong then and all the paper is saying is that there was no singularity at the beginning of The Universe which would still mean that objects are still red-shifted and moving away from our point of observation, but you still have the problem of other observations in that if mass were increasing we'd see a change in images where gravitational lensing is taking place.

And what implications would this hypothesis have for the Higgs boson and other sub atomic particles? I think if it did hold any weight the standard model of particles wouldn't be holding up as well as it has.
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post #63 of 65
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Quote:
Originally Posted by redfroth View Post

but you still have the problem of other observations in that if mass were increasing we'd see a change in images where gravitational lensing is taking place.

Again, this assertion is unfounded because there is no guarantee that we've been viewing the lenses long enough or with enough precision to notice a change.

But I still think the ramifications of the hypothesis contain some fudge factor that would nullify the increasing effect of gravity on light, since it also has mass. However I admit I don't have enough understanding of the physics involved to make such an argument.
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post #64 of 65
Quote:
Originally Posted by un-midas touch View Post

Quote:
Originally Posted by redfroth View Post

but you still have the problem of other observations in that if mass were increasing we'd see a change in images where gravitational lensing is taking place.

Again, this assertion is unfounded because there is no guarantee that we've been viewing the lenses long enough or with enough precision to notice a change.

But I still think the ramifications of the hypothesis contain some fudge factor that would nullify the increasing effect of gravity on light, since it also has mass. However I admit I don't have enough understanding of the physics involved to make such an argument.

light has momentum not mass. but i think you're right that you could not detect the change by looking at lensing
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post #65 of 65
Man knows everything until man discovers he actually knows nothing

Whatever science tells me about space I usually let go in one ear and out the other. Fact today is Fiction tomorrow.

FACT: we actually know and understand jack crap about the vastness of space. We are but an insignificant little flea on the back of the cosmos.
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