hi all, where can you post physics theorys and read others online.
Serious things: preprint-servers - but in that case you don't have to ask.
Everything else: Please, do not do it. You are wasting your and other's time.
You can always look at the Arxiv: http://arxiv.org/
If you have a serious theory, then you can always publish it there. Of course, not everybody can publish there, you need somebody to endorse your paper. But if you have a serious theory, then I'm sure you'll have contacts willing to endorse.
If you don't have a serious theory (like: you never studied physics before and you discovered why quantum theory is wrong), then I'm sure there are many forums where you can publish things. This forum is not one of them though.
www.fqxi.org seems appropriate. A lot of laymen post their ideas there. But don't expect anyone with a clue to actually read it unless you can explain in three sentences what your theory is about and why it should be considered. Can you?
Read about it: arxiv.org Write about it without credentials: vixra.org I think.
FYI, vixra is not acceptable on this site, it's a crackpot repository.
Why isn't there a forum on the internet dedicated to research physics. Obviously modern physics is just a sliver of what the future holds, a history major could tell us that, so why is there not a free website, similar to this one, where people can exchange new ideas? Whenever I visit physics forums websites, they never want to talk about ideas that are not already canon, but I think an outlet for research physics could be beneficial to physics progress. I'm not talking about a preprint, I'm talking about a forums website. Like arxiv, but with threads. Is there really no such website yet?
With no referee, it seems to me that such a forum would inevitably degenerate into crackpottery, and there ARE such forums. I think you are looking for such a site but without the crackpottery and my contention is that such a beast is impossible.
There ARE such forums!! I don't think you've searched long enough.
You can try https://groups.google.com/forum/?fromgroups#!forum/sci.physics which is like posting your theory on a lavatory wall. I don't recommend it.
For a little more class, try moderated https://groups.google.com/forum/?fromgroups#!forum/sci.physics.research Not much traffic there though.
And we tried it too (twice!). It was a disaster.
Why in the world would anyone want to post a "serious" physics theory in a public internet forum?
It beats me. As commented in other posts there are ways like journals and the arxiv that require endorsers which means that at least you have made the effort to moreless coherently explain your theory to someone professionaly related to science who agreed it deserved a preprint.
A different thing is exploring and learning about what is already known, that can be done in many sites(such as this one) with different levels of nonsense allowed.
Because they hope that the reaction will be "you're the bestest bestest physicist ever! The next Einstien, Hawkins and Feynmann rolled into one!"
But seriously, none of them (save very rare exceptions) are even physicists, not that I think it is absolutely necessary to have a formal degree to make contributions to a science field (but it surely helps). I was rather thinking that if you happen to have a theory, whatever path you might have come to that conclusion, if you are serious about it, the last thing you'd want to do is to directly present it in a forum, unless you simply don't have a clue about what you are talking about which is the usual case.
Does this mean my theory on the entanglement of left pinky toes of identical twins and how it can lead to perpetual energy shouldn't be posted?
Remember the old saying, "If you have to ask how much it costs, you probably can't afford it?"
Similarly, "If you have to ask where to publish a new theory, it's probably no good."
You're the bestest bestest physicist ever! The next Einstein, Hawkins and Feynman rolled into one!
Nah, we just all have the same toe!
Separate names with a comma.