Presumably that's only for later generation stars - got any links? Sounds interestingS. Bilderback wrote:There is dialog ongoing about most stars having an Fe shell over the core, there are traces of Fe that raises questions - the evidence hasn't grabbed me but it also hasn't been ruled out.
Search found 176 matches
- Wed Nov 23, 2005 12:41 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: History of the Universe
- Replies: 27
- Views: 7053
- Wed Nov 23, 2005 12:35 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Solar Journey
- Replies: 9
- Views: 2970
- Wed Nov 23, 2005 12:32 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Question about black holes
- Replies: 14
- Views: 5476
- Wed Nov 23, 2005 12:30 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: stella core
- Replies: 49
- Views: 8904
Why can't fusion reactions happen in the core? Also, are you saying that 'normal' matter cannot condense enough to produce the gravity required to hold even a small star like our sun together - what are you proposing that compact objects such as neutron stars are composed of? It's all very interesti...
- Wed Nov 23, 2005 12:25 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: The Andromeda Galaxy
- Replies: 35
- Views: 10268
Billions may have been an exagerration - try millions:
http://www.anzwers.org/free/universe/universe.html
Incidently - this is a well cool map that I think everyone would be quite interested in 8)
http://www.anzwers.org/free/universe/universe.html
Incidently - this is a well cool map that I think everyone would be quite interested in 8)
- Wed Nov 23, 2005 12:23 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Open Cluster of stars (APOD 18/11/05)
- Replies: 21
- Views: 7168
- Wed Nov 23, 2005 12:20 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Non-Abelian Gravity
- Replies: 3
- Views: 1727
- Tue Nov 22, 2005 4:29 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Travelling Light Year Distances
- Replies: 83
- Views: 25775
- Tue Nov 22, 2005 4:27 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: The Ring Galaxy
- Replies: 5
- Views: 2727
- Tue Nov 22, 2005 1:42 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: History of the Universe
- Replies: 27
- Views: 7053
Re: History Of The Universe.
Our sun may last over 5 billion years but! its IRON shell will be due to be expelled by the great ineternal forces of the sun's core. Plus, Iron is the most stable element - the suns does not have anywhere near the internal pressure to fuse iron - yes, there might be trace amounts as it's a second ...
- Tue Nov 22, 2005 1:39 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: The Ring Galaxy
- Replies: 5
- Views: 2727
- Tue Nov 22, 2005 1:37 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: stella core
- Replies: 49
- Views: 8904
Yes, but there's a slight insufficient pressure inside the core of the sun to produce fusion reactions - we have to employ the uncertaintly principle and quantum tunnelling to explain that - so surely there is no where near enough density in the other layers to produce fusion reactions? Also, these ...
- Tue Nov 22, 2005 1:33 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: At the Center of the Milky Way
- Replies: 47
- Views: 14100
Re: Time travel
Light allows us to communicate. We can see objects in the past. If we move away from planet earth at the speed of light the time clock receiving info from earth will remain constant. Hi harry, that's not strictly true though is it? We enter all sorts of relativity problems here do we not? Light tra...
- Tue Nov 22, 2005 1:26 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: The Andromeda Galaxy
- Replies: 35
- Views: 10268
there are an awful lot more than 9 superclusters....try 9 billion at least... The universe is expanding in the sense that the medium of our universe is expanding - we're not expanding into anything, everything is exanding away from everything else. You cannot think of the big bang as an explosion - ...
- Tue Nov 22, 2005 1:16 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Open Cluster of stars (APOD 18/11/05)
- Replies: 21
- Views: 7168
Cheers Harry - they're really cool :D I still haven't seen anything mind about Stars being ejected from BHs, there's the mass ejection that we all know about, and there's talk of this ejection shockwave triggering star formation, but nothing about actual stars being ejected. It's a weird and wonderi...
- Tue Nov 22, 2005 1:12 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: The Missing Craters APOD Nov.21, 2005
- Replies: 13
- Views: 4526
- Tue Nov 22, 2005 1:10 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Asteroid Itokawa Formed By Slow Collision Of Two Asteroids?
- Replies: 4
- Views: 2758
- Mon Nov 21, 2005 2:12 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: At the Center of the Milky Way
- Replies: 47
- Views: 14100
Re: Wormhole
You seem very sure of that - do you have a direct line?harry wrote: But!!!!! worm holes and time travel are not possible.
- Mon Nov 21, 2005 2:08 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Open Cluster of stars (APOD 18/11/05)
- Replies: 21
- Views: 7168
- Fri Nov 18, 2005 12:44 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Open Cluster of stars (APOD 18/11/05)
- Replies: 21
- Views: 7168
- Fri Nov 18, 2005 12:42 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Travelling Light Year Distances
- Replies: 83
- Views: 25775
- Fri Nov 18, 2005 12:41 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Core of a star
- Replies: 6
- Views: 2838
- Fri Nov 18, 2005 12:36 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Lunation
- Replies: 14
- Views: 5899
- Thu Nov 17, 2005 9:39 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Lunation
- Replies: 14
- Views: 5899
The orbit of the Moon has about a 10 degree inclination in relation to the Equator, most other naturally orbiting bodies stay with in 1 or 2 degree of the host object's rotation, so in this respect it probably quite rare. Is this partly why they believe that the moon may once have been part of the ...
- Mon Nov 14, 2005 12:40 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: spirit tracks missed!
- Replies: 2
- Views: 1928