Happy Fourth of July!!

RStar · 07-04-2007, 11:27 PM

I belive what CP was seing is the way the smoke from the fireworks blocks the wave lengths of other colors. Red is able to get through.

Also, what is interesting about red shifts is that they appear to be quantized and this has interesting implications for the study of the universe. This suggests that the red shift may be caused by something other than the expansion of the universe, at least in part. This could be a loss of energy of light rays as they travel, or a decrease in the speed of light through discrete levels. Maybe there is some other explanation.

Several well-studied galaxies, including M51 and NGC 2903, exhibited two distinct redshifts. Velocity breaks, or discontinuities, occurred at the nuclei of these galaxies. Even more fascinating was the observation that the jump in redshift between the spiral arms always tended to be around 72 kilometers per second, no matter which galaxy was considered. Later studies indicated that velocity breaks could also occur at intervals that were 1/2, 1/3, or 1/6 of the original 72 km per second value.

That is what you told her, right GD?

Alex · 07-05-2007, 12:36 AM

The Tifft research (with Arp's follow up) that you're quoting is generally regarded as bunk these days (and really never had much support to begin with), a product of bad modeling and finding significance below the level of measurement, and has been pretty thoroughly stomped on by the many more thorough surveys done since the mid-80s which finds no support for quantized redshift.

Though it is fun watching geocentrists cling to this research since one of its implications would that the earth is at the center of the universe. Another is that the Big Bang theory of cosmology is wrong.

So if that is what he told her, I hope he followed up with the additional research done over the last 20 years. (It's July 5th now so a complete derail is ok, right?)

RStar · 07-05-2007, 10:03 AM

Quote:

Originally Posted by Alex

And kids will lie down in the cereal aisle and throw a fit if you deny them their preferred sugary cereal.

But sometimes you have to be the adult and hold firmly to "no." It's for their own good Kevy.

***SNORT***

Sorry

Quote:

Originally Posted by JWBear

The people who live a few houses down from the party I was at last night accidentally lit some of their front yard shrubbery on fire with fireworks (at least, I'm assuming it was an accident). Is it wrong of me to have found it hysterical?

No, not at all. I've been lighting off fireworks for 40 years, and I have never lit anything on fire, nor hurt myself or anyone else. Only stupidity can do that, and stupidity must be laughed at or all is lost!

Quote:

Originally Posted by Alex

The Tifft research (with Arp's follow up) that you're quoting

Shoot! I was hoping I'd at least get a few posts about how intelegent I sounded before I posted the sorce of my quote.

Oh well, everyone knows better anyway!

That was not the link, Alex. This is: Red Shift Riddles

07-04-2007, 11:27 PM	#1
RStar Senior Member Join Date: Jun 2006 Location: Me & Manyard hangin out! Posts: 5,433	I belive what CP was seing is the way the smoke from the fireworks blocks the wave lengths of other colors. Red is able to get through. Also, what is interesting about red shifts is that they appear to be quantized and this has interesting implications for the study of the universe. This suggests that the red shift may be caused by something other than the expansion of the universe, at least in part. This could be a loss of energy of light rays as they travel, or a decrease in the speed of light through discrete levels. Maybe there is some other explanation. Several well-studied galaxies, including M51 and NGC 2903, exhibited two distinct redshifts. Velocity breaks, or discontinuities, occurred at the nuclei of these galaxies. Even more fascinating was the observation that the jump in redshift between the spiral arms always tended to be around 72 kilometers per second, no matter which galaxy was considered. Later studies indicated that velocity breaks could also occur at intervals that were 1/2, 1/3, or 1/6 of the original 72 km per second value. That is what you told her, right GD? __________________ Meddle not in the affairs of Dragons, for you are crunchy and good with ketchup! www.StarTownGifts.com
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07-05-2007, 12:36 AM	#2
Alex . Join Date: Feb 2005 Posts: 13,354	The Tifft research (with Arp's follow up) that you're quoting is generally regarded as bunk these days (and really never had much support to begin with), a product of bad modeling and finding significance below the level of measurement, and has been pretty thoroughly stomped on by the many more thorough surveys done since the mid-80s which finds no support for quantized redshift. Though it is fun watching geocentrists cling to this research since one of its implications would that the earth is at the center of the universe. Another is that the Big Bang theory of cosmology is wrong. So if that is what he told her, I hope he followed up with the additional research done over the last 20 years. (It's July 5th now so a complete derail is ok, right?) Last edited by Alex : 07-05-2007 at 12:52 AM.
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