Search found 121 matches

by cosmo_uk
Fri Mar 16, 2007 10:50 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Lunar Occultation of Saturn (APOD 16 Mar 2007)
Replies: 7
Views: 2891

I'm going with optical illusion due to the curved shape of the moon as when I put my ruler through a point on saturn it lines up all the way to the other end of the line. Although it could be my monitor!
by cosmo_uk
Wed Feb 21, 2007 9:37 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Inner Core of our sun
Replies: 294
Views: 47518

I fear we have moved into origins of the universe territory again. As John says, the BBT is dead. It has been for 20 years, but it will take a generational change to acknowledge it. I think you'll find that rather than a generational change being needed to get rid of the BBT it is the extreme old gu...
by cosmo_uk
Sun Feb 18, 2007 12:00 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Black Holes as creators, not destroyers
Replies: 33
Views: 12329

Harry, there are literally thousands of peer reviewed papers on all of the above topics. Perhaps you should have a read rather than declaring them "ad hoc" all the time.

As for my level of study on these topics, I can definitely say it is considerably more advanced than yours.
by cosmo_uk
Sat Feb 17, 2007 2:20 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Black Holes as creators, not destroyers
Replies: 33
Views: 12329

Harry to re iterate what i've said a thousand times already - there is an overwhelming ammount of evidence for the big bang! -Cosmic Microwave Background -Cosmological Redshift -Observed galaxy evolution -Type 1a supernova distances -Observation that nothing we see is older than the Universe -Nucleo...
by cosmo_uk
Thu Feb 15, 2007 12:31 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Black Holes as creators, not destroyers
Replies: 33
Views: 12329

I agree with NASA Harry. In layman's terms the Big Bang occurred everywhere at once (although everywhere grew from nothing outwards with the BB). That doen't mean there are multiple Big Bangs!
by cosmo_uk
Thu Feb 15, 2007 11:36 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Black Holes as creators, not destroyers
Replies: 33
Views: 12329

harry:
But! the big bang theory assumes that there was not one big bang but many distributed throughout the universe.
What are you on about Harry?! You clearly have no understanding of big bang theory. There was only one big bang that created this universe.
by cosmo_uk
Fri Feb 09, 2007 9:41 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Inner Core of our sun
Replies: 294
Views: 47518

I think you'll find the answer is nuclear fusion Harry:)

Harry/Michael how does your Solar model explain the Herzsprung Russel diagram?
by cosmo_uk
Fri Jan 26, 2007 12:14 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: How fast can we go?
Replies: 352
Views: 80732

harry:
You can use maths to do what ever you want
Am I right in thinking you don't believe in relativity????

Oh dear!
by cosmo_uk
Thu Jan 25, 2007 10:53 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: How fast can we go?
Replies: 352
Views: 80732

No Harry, you need to think in terms of special relativity here which is not intuitive. As far as we're concerned light takes a year to travel one light year. However if we were sat on the photon being emitted we would arrive instantaneously at our destination wherever that might be due to length co...
by cosmo_uk
Thu Jan 25, 2007 10:49 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: How fast can we go?
Replies: 352
Views: 80732

Not true Harry, Due to Special Relativity if it was possible to travel arbitrarily close to the speed of light you could pretty much reach anywhere in an arbitrary amount of time. So there is no need to travel faster than light. length contraction L=Lo/y Lo=proper length in object's rest frame (dist...
by cosmo_uk
Tue Jan 16, 2007 1:26 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Kepler's Supernova Remnant in X-rays (2007 Jan 16)
Replies: 4
Views: 2887

I think that APOD is right and wikipedia is wrong on this
by cosmo_uk
Sun Jan 14, 2007 12:28 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Fast Stars Near the Galactic Center (APOD 14 Jan 2007)
Replies: 60
Views: 18589

I would assume all they mean is that based on the radius of the orbiting stars all they can say is that the mass is within some radius within this upper limit not that the black hole has this radius
by cosmo_uk
Tue Dec 19, 2006 10:28 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Origins of the UNIVERSE
Replies: 829
Views: 146578

Astronomers believe the objects are either the first stars -- humongous stars more than 1,000 times the mass of our sun -- or voracious black holes that are consuming gas and spilling out tons of energy. If the objects are stars, then the observed clusters might be the first mini-galaxies containin...
by cosmo_uk
Mon Dec 18, 2006 10:12 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Inner Core of our sun
Replies: 294
Views: 47518

anyway, have a think about my suggestions and see if there is a way to prove your idea through this kind of direct observation. Like i say it may be more straight forward than you think
by cosmo_uk
Sat Dec 16, 2006 11:45 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Inner Core of our sun
Replies: 294
Views: 47518

As far as I can tell, the photosphere does absorb most x-ray that try to pass through it . Well the definition of the photoshere is just the point in the solar atmosphere where the opacity drops to a point where you can see the photons emitted from it so the X-rays would be visible from here becaus...
by cosmo_uk
Fri Dec 15, 2006 10:47 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Inner Core of our sun
Replies: 294
Views: 47518

the spectral signatures of neon plasma are seen in X-ray spectra (probably not as obvious in the broad band images you are discussing, in fact the spectra would help see through the coronal loops to the underlying X-ray spectra of the photosphere). So you would see a massive spectral feature for neo...
by cosmo_uk
Fri Dec 15, 2006 12:03 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Inner Core of our sun
Replies: 294
Views: 47518

from your website: "This visible neon plasma layer, as well as a thicker, deeper plasma layer of silicon, entirely covers the actual rocky, calcium ferrite surface layer of the sun. " I'm confused, are you saying that the photosphere is made of neon plasma (ie the surface we see is neon)? ...
by cosmo_uk
Thu Dec 14, 2006 12:25 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Inner Core of our sun
Replies: 294
Views: 47518

Thanks Michael from your website: "This visible neon plasma layer, as well as a thicker, deeper plasma layer of silicon, entirely covers the actual rocky, calcium ferrite surface layer of the sun. " I presume this would be easily proved with spectroscopy - do you have any supporting spectr...
by cosmo_uk
Wed Dec 13, 2006 1:52 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Inner Core of our sun
Replies: 294
Views: 47518

micheal

http://antwrp.gsfc.nasa.gov/apod/ap061213.html

just interested to know if this has any implications for your theory or not.

cosmo
by cosmo_uk
Mon Dec 11, 2006 10:24 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Origins of the UNIVERSE
Replies: 829
Views: 146578

Don't worry harry I wasn't expecting you to be converted from the flat earth society.

Of course I and the speaker at the RAS were referring to conventional inflation, ie the whole universe rapidly increases in size in a very small amount of time.
by cosmo_uk
Sun Dec 10, 2006 2:37 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Origins of the UNIVERSE
Replies: 829
Views: 146578

Re: inflation a few posts ago michael and astro were discussing inflation. I was at the RAS on friday and heard an excellent talk on testing inflation. By assuming the only variations in the tiny pre inflation universe are purely quantum (very reasonable at these size scales). we would expect the un...
by cosmo_uk
Fri Dec 01, 2006 10:50 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Origins of the UNIVERSE
Replies: 829
Views: 146578

1. Galaxies aren't all in clusters, many are field galaxies but this is irrelevant. We see all distant galaxies/galaxy clusters moving away from us, ie universe is expanding. I would provide citations for this but it would run into thousands of papers. Type "spectra galaxy" into a astronom...
by cosmo_uk
Tue Nov 28, 2006 1:54 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Origins of the UNIVERSE
Replies: 829
Views: 146578

I would hardly describe it as closed doors. We undertake a lot of public outreach work to let people know what we're up to. However if you don't have a formal education in physics it will be extremely difficult to get your theory across to those who have. Remember Cosmologists aren't stupid we don't...
by cosmo_uk
Tue Nov 28, 2006 11:43 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Origins of the UNIVERSE
Replies: 829
Views: 146578

I suspect that my fellow academics would rather not recieve any more emails from "the einstein was wrong" camp, believe me we get plenty of these as our email addresses are available on faculty websites. I comment on this site as enjoy reading and commenting on other peoples theories and i...
by cosmo_uk
Tue Nov 28, 2006 10:56 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Origins of the UNIVERSE
Replies: 829
Views: 146578

Harry, as I've said before, I have met many a cosmologist at top research institutions and never found one who disagrees with the Big Bang. I've met a handful who disagree with Dark Matter and many who are uncomfortable with Dark Energy but the Big Bang is one thing we all agree on. I'm aware of the...