What is difference between homogeneous and isotropic material?
Dec 13, 2014 · The answer is different. To conclude, I will just remark that homogeneity and isotropy are independent from each other. Below you can see an homogeneous but not …
Relation between Homogeneity and Isotropy of space?
Jun 18, 2022 · Isotropy expresses a symmetry of space which is the rotational one. The Universe should mathematically look the same (its various quantities remain invariant) after you execute …
Does isotropy imply homogeneity? - Physics Stack Exchange
Jun 27, 2015 · They required the following: Use elementary thought experiments to show that isotropy of the universe implies homogeneity. I know homogeneity as the universe is the same …
Why do we say the universe is isotropic when we are clearly …
Jul 6, 2022 · Modern cosmology is built on the Friedmann equations, which in turn rely on isotropy — the idea that the universe looks the same in every direction — as a fundamental …
Explanation of homogeneity of space and time by giving examples?
Isotropy of time (are you sure that it's isotropy of time and not isotropy of space, I don't recall Landau mentioning it) means that the Physics doesn't change if you go backwards in time (but …
What is the conservation law associated with isotropy of time?
May 21, 2023 · In my mind, the isotropy of time means physics law is the same in every time direction (analogous to space isotropy). Based on that logic, time has two directions, forward …
general relativity - What is meant when it is said that the universe …
It is sometimes said that the universe is homogeneous and isotropic. What is meant by each of these descriptions? Are they mutually exclusive, or does one require the other? And what …
What does isotropic space mean? - Physics Stack Exchange
Mar 31, 2018 · The unit vector r shows that Coulomb's force is parallel to the line joining the charges. It could not be otherwise unless space itself has some built in directional property, for …
kinetic theory - What is isotropy actually & how does it ensure that ...
Jan 10, 2015 · Isotropy means that the probability of moving in one direction is the same as in any other, and this behavior is implemented in the mathematical models of statistical mechanics to …
thermodynamics - Does the isotropy definition of a perfect fluid …
Jul 6, 2024 · Weinberg defines a perfect fluid (Chapter 2, Section 10) as one where each fluid element appears isotropic in a reference frame moving with that element. From the definition …