There is one element, and it is the least energy state. I think it's lead, but I might be mis-remembering. Yeah, you misremember. There are two isotopes, Fe-58 and Ni-62, that have the lowest energy state.
If all of the past articles stating "x is going to be the year of Linux on the desktop" didn't work, then perhaps asking "is it dead?" will finally make it happen. Somehow I don't think the world works like that.
I use publicly funded roads on a regular basis. Should this make my cargo public property?
I think your analogy is wrong, are all my Abiword documents public property?
A closer analogy would be that if I resurface a publicly funded road then the resurfaced road is still public property. Which would break your argument;-)
From the kitchen in my dorm's basement. The sign on the microwave reads:
Do NOT leave microwave unattended when not in use.
:)
You obviously haven't come home after work and found that your microwave has had a party without you and totally trashed the place. It was terrible I still haven't managed to shift the stains from the walls [shudder], goodness only knows what that was. (I even asked, but it just stared at me with those baleful dials and well...) Suffice to say I'm now employing someone to watch it 24/7. :)
As in during a university Q Mech lecture on Friday:)
2) I cant attest to the truth of what you said, but if it doesnt work on all elements it's a coincidence.
Due to the Pauli Principle, electrons will pair up if there are more than one. This pairing would be impossible (since no two electrons can have exactly the same quantum state) unless there was a fourth quantum number (the other three being the principal, angular momentum and magnetic quantum numbers). There is only one element lighter than Helium (Hydrogen) with only one electron, therefore it can't pair up on its own so spin will have no effect on the solution to the Schrodinger Equation.
3) Electron spin is as fundamental a part of QM as any other particle spin, not something introduced externally.
True but originally the spin was not included[1], the earlier work was only for the hydrogen atom and so spin would have had no effect, and so it would have been neither looked for nor found - except by using another atom (helium), as Dirac did in 1928. The idea of spin drops out of the maths if relativistic effects are included - and happens to give better results. Although the electron in hydrogen will have spin, since there is only one electron the addition of spin into the S.E. would have no effect on the solution.
[1] Note to creationists, this is an example of how the scientific process works, someone comes up with a theory which seems to work, then it is applied to a slightly different situation and is shown not to work, everyone says "Oh dear!" and they start working on additions/alterations and when one of these is shown to work in both the new and old situations the theory is updated to include the new/altered parts and everyone is happy again, until someone find finds another problem with it, everyone says "Oh dear"... etc. They don't say well that situation can't possibly be right and ignore it.
But as Quantum Mechanics came into its own, it became clear that either Relativity or Quantum Mechanics was wrong, and most people pointed at Relativity.
I recently learnt that unless relativistic effects are added to the Schrodinger Equation ( which is one of the fundamental ideas behind quantum theory) for Helium (or anything heavier) then all of the results turn out incorrectly. Relativity adds the idea of electron spin which sorts out most of the problems. If you need a ref try Paul Dirac "The Principles of Quantum Mechanics".
Slashdot Mirror
Maybe El Lobo is trying some reverse psychology.
If all of the past articles stating "x is going to be the year of Linux on the desktop" didn't work, then perhaps asking "is it dead?" will finally make it happen. Somehow I don't think the world works like that.
- Windows_Key + r, and then being able to launch things easily from this ('putty -load {profile}').
If you like that then you'll love Alt-F2 in KDE. (Check out the Options button)
Cool, a pop-up appears in the centre of your vision:
Your brain has performed an illegal operation
Press OK to self-terminate
I think your analogy is wrong, are all my Abiword documents public property?
A closer analogy would be that if I resurface a publicly funded road then the resurfaced road is still public property. Which would break your argument ;-)
From the kitchen in my dorm's basement. The sign on the microwave reads:
Do NOT leave microwave unattended when not in use.
:)
You obviously haven't come home after work and found that your microwave has had a party without you and totally trashed the place. It was terrible I still haven't managed to shift the stains from the walls [shudder], goodness only knows what that was. (I even asked, but it just stared at me with those baleful dials and well...)
Suffice to say I'm now employing someone to watch it 24/7.
:)
-------
1) learnt?
:)
As in during a university Q Mech lecture on Friday
2) I cant attest to the truth of what you said, but if it doesnt work on all elements it's a coincidence.
Due to the Pauli Principle, electrons will pair up if there are more than one. This pairing would be impossible (since no two electrons can have exactly the same quantum state) unless there was a fourth quantum number (the other three being the principal, angular momentum and magnetic quantum numbers).
There is only one element lighter than Helium (Hydrogen) with only one electron, therefore it can't pair up on its own so spin will have no effect on the solution to the Schrodinger Equation.
3) Electron spin is as fundamental a part of QM as any other particle spin, not something introduced externally.
True but originally the spin was not included[1], the earlier work was only for the hydrogen atom and so spin would have had no effect, and so it would have been neither looked for nor found - except by using another atom (helium), as Dirac did in 1928. The idea of spin drops out of the maths if relativistic effects are included - and happens to give better results.
Although the electron in hydrogen will have spin, since there is only one electron the addition of spin into the S.E. would have no effect on the solution.
[1] Note to creationists, this is an example of how the scientific process works, someone comes up with a theory which seems to work, then it is applied to a slightly different situation and is shown not to work, everyone says "Oh dear!" and they start working on additions/alterations and when one of these is shown to work in both the new and old situations the theory is updated to include the new/altered parts and everyone is happy again, until someone find finds another problem with it, everyone says "Oh dear"... etc. They don't say well that situation can't possibly be right and ignore it.
------
But as Quantum Mechanics came into its own, it became clear that either Relativity or Quantum Mechanics was wrong, and most people pointed at Relativity.
I recently learnt that unless relativistic effects are added to the Schrodinger Equation ( which is one of the fundamental ideas behind quantum theory) for Helium (or anything heavier) then all of the results turn out incorrectly. Relativity adds the idea of electron spin which sorts out most of the problems.
If you need a ref try Paul Dirac "The Principles of Quantum Mechanics".
------
Found no probs with these:o n/unxlnxi/so51_lnx_01.tar
:( o n/wntmsci/so51_win_01.exe
Linux:
ftp://ftp.tu-clausthal.de/pub/mirror/StarDivisi
Windows - still have to use this for the printer
ftp://ftp.tu-clausthal.de/pub/mirror/StarDivisi
They let me in first time at 200Kbps to the UK.