ParadigmShifter
Random Nonsense Generator
So does mercury.
ok big question . i've read a book about the history of physics since 1895 to 1970. Something i dont understand. Each important findings ends out with a great big formula . The long formula Schrodinger or Heisenberg comes out with give what ? the position of an atom, electron ? Is there anywhere where i could see the maths behind a formula, the development and final results ? cause after Newton's formula i dont understand nothing.
ok big question . i've read a book about the history of physics since 1895 to 1970. Something i dont understand. Each important findings ends out with a great big formula . The long formula Schrodinger or Heisenberg comes out with give what ? the position of an atom, electron ? Is there anywhere where i could see the maths behind a formula, the development and final results ? cause after Newton's formula i dont understand nothing.
I find Wikipedia to be pretty robust on the topic. It's probably worth reading through a timeline. In school, it was explained to me that essentially there are three "ages".
1. Classical physics, which works until electromagnetic radiation is studied by
Planck and Einstein's early work are important here (e.g. photo-electric effect, Planck's law, Planck's constant). Try reading about "black body radiation" and "ultraviolet catastrophe".
2. Early quantum theory tries to explain the dual nature (wave and particle) of electromagnetic radiation that Einstein/Planck uncovers. That cumulates with Schrodinger and Heisenberg. Schrodinger's wave function does predict where an electron should "probably" be. Heisenberg basically points out that the amount of error in the equation means you can't have complete knowledge of an electron---you either know where it is or how it is moving directionly.
3. Modern quantum theory is then the fall out of Heinsenberg and Schrodinger's conflicts and the interpretations of it.
Overall, I find it's important to understand the history as a set of problems and partial solution, rather than convenient math.
i all know that guys. What i dont know is who the hell uses those formulas ? I mean in a system so small there is 'lets say a glass of water there are literally billions of atoms. nobody will use that formula to know where are every atom! and if one uses it, what for ? and what does it looks like ? all i see is a formula with letters. I dare anyone to fill it with real numbers!
but i'm a bit lost since people are saying schrodingers equations can describe planets...
what are the lowest number of equation (and which ones) possible to describe all physic phenomena
I thought there were only Einstein General Relativity, and any of the three possible quantum ones. (Matrix, Schrodinger and the other unusable one...)
That Lagrangian formula is huge. I guess its just a huge formula taking every formula of every fields.
Another question: is there a very specific size of matter where we have to switch from General relativity to Quantum ?
same idea with boltzmann statistic vs. Schrodinger. when do you switch
since Schrodinger equations can describe big objects, why can't we say physics are united under one field ? I tought the only missing part to unified theory was to unite Newtonian laws with quantum laws
[/QUOTE]The problem is not so much replicating Newton's laws with QM, but rather explaining the extra effects of GR with QM. If you want a theory of everything you need to explain all the effects of QM and all the effects of GR. So far nobody has been able to come up with a theory that does that.
And then there is the problem that at extreme conditions (which we won't be able to generate for a long time), GR and QM actually contradict each other.
what are extra effects ? what is left to find and is there a list somewhere?
I find physics are a bit far from our reality given the power they are running particles accelerators. will it explain anything of our reality to find a new particle at an energy which was only available 3 minutes after the big bang and has never been seen since?
I don't think so, it would compromise internet security.