Measurable in Physics= Computable ?

[farzad didehvar]

Seemingly in Physics we are interested in measurable concepts.

Does it mean that these concepts are measurable also?

Have we "measurable" but Incomputable concepts in Physics?

[swansont]

I'm sure there are plenty of things that can't be computed accurately because the model is complicated or too incomplete.

[mississippichem]

I'm sure there are plenty of things that can't be computed accurately because the model is complicated or too incomplete.

An example (chemical in nature, but IMO relevant):

 

The long range structure of proteins are [sometimes] easily measurable but often not computable. It's basically an n-body problem with a few hundred to a few thousand atoms moving in the electric potential (dipole, Van der Waals, etc.) of the solvent and the other atoms.

 

Chemistry is rife with measurable but not computable properties often due to the sheer number of bodies in a quantum or even semi-classical electro-kinematics/electro-statics problem.

 

Sorry that it's a chemical example. It's what I know and no one else has responded besides you.

[alpha2cen]

To do 1mol molecular simulation at least 6x10²³ memory area are required. The capacity is same as the current 5G(1x10⁹)PC chip 1x10¹⁴units. It is above the sum of all computers in the world. Practically reducing the molecular number, increasing the calculation speed or other methods are used.

Edited December 5, 2012 by alpha2cen

[farzad didehvar]

Thank you for your nice examples,they enlights the subject.

But in the above examples we have a chance the subjects would be computable,

not now but in future.

Is there such possibility that some Physical quantity have no chance(By some specific

theory, of course)to be computed? Not now and not in future, till the time that we accept that we

accept that specific theory as a true Theory?