Can we solve unsolved problems in classical physics without using other branches?

  • A
  • Thread starter ricky33
  • Start date
  • #1
46
0
We know that unsolved problems still exist in classical physics and scientists still make reasearches , can the scientists solve those problems without using other physics branches like quatum mechanics .. ? Can they solve these problems only with a full understanding of classical mechanics ?
 

Answers and Replies

  • #2
phyzguy
Science Advisor
4,778
1,733
I suspect it depends on the problem. Do you have a specific problem you were referring to?
 
  • #3
46
0
I suspect it depends on the problem. Do you have a specific problem you were referring to?
The problem is not with me it's with scientists they have many unsolved probkems in classical physics like turbulence
 
  • #5
phyzguy
Science Advisor
4,778
1,733
It depends on how you look at it. I think may aspects of turbulence can be studied with the classical equations of fluid mechanics, the Navier-Stokes equations. However, things like viscosity which are described in the equations depend on the interaction between the atoms of the fluid, which are inherently quantum mechanical. So if I study turbulence by running simulations of the Navier-Stokes equations, is this "purely classical"?
 
  • #6
DrDu
Science Advisor
6,117
808
I once heard a talk by Moser (best known for the Kolmogorov-Arnold-Moser theorem) on theorems about how many particles are necessary that classical particles separate to infinity in finite time. The proofs only involved classical mechanics, yet there were still many open questions.
 
  • #7
DrDu
Science Advisor
6,117
808
What do you think the issue is in "solving" the problem of turbulence?
As an engineer you won't believe it, but mathematicians are still struggling to show that the Navier-Stokes equations have solutions at all.
 
  • #8
46
0
What do you think the issue is in "solving" the problem of turbulence?
Search about the turbulence problem its unsolved till now
 
  • #9
46
0
I once heard a talk by Moser (best known for the Kolmogorov-Arnold-Moser theorem) on theorems about how many particles are necessary that classical particles separate to infinity in finite time. The proofs only involved classical mechanics, yet there were still many open questions.
So we have unsolved problems that can be solved with only classical mechanics ? Do you know any ?
 
  • #11
Andy Resnick
Science Advisor
Education Advisor
Insights Author
7,580
2,229
So we have unsolved problems that can be solved with only classical mechanics ? Do you know any ?

I don't know what you mean by *only* classical mechanics- presumably you mean something like "macroscopic, room-temperature, slow processes"? Just be aware that many of these problems also occur in microscopic, low-temperature, rapidly changing systems as well.

There's a bunch besides those already mentioned: wetting (contact line motion), the glass transition (dynamic heterogeneity), and nonequilibrium thermodynamics (for example, the dynamics of soft matter) complete my favorite 5.
 

Related Threads on Can we solve unsolved problems in classical physics without using other branches?

Replies
3
Views
1K
Replies
3
Views
1K
Replies
11
Views
870
Replies
20
Views
4K
  • Last Post
Replies
8
Views
2K
Replies
8
Views
358
  • Last Post
Replies
17
Views
492
Replies
2
Views
226
Top