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Questions related from Yuri Rylov
Two vectors AB and CD are equivalent, (1) if components of vectors are equal ABk=CDk, k=0,1,2,3. (2) if (AB.CD)=|AB||CD| and |AB|=|CD|, where (AB.CD) ls the scalar product of two vectors. In the...
11 November 2015 3,025 24 View
In the Riemannian geometry the distance between any two points is defined as an integral along the shortest curve (geodesic), connecting the two points. Let the Euclidean geometry be defined on...
03 March 2015 8,403 32 View
Molecules of usual gas move stochastically. This stochasticity is a result of interaction between gas molecules (collisions of molecules). Let us imagine that molecules of the gas interacts by...
03 March 2015 1,217 12 View
Classical dynamic equations for free motion of a body do not contain the mass of the body. What is a reason, why the Schroedinger equation contain the particle mass?
03 March 2015 5,206 36 View
Dynamic equations for elecromagnetic fields do not depend on quantum constant \hbar. They do not change their form at \hbar tending to zero. In other words, they have the same form in classical...
12 December 2014 9,918 5 View
The principle relativity is formulated usually as invariance with respect to some coordinate transformation. It seems rather strange. Why the physical principle does depend on the method of...
11 November 2014 1,546 16 View
Presentation of the Riemannian geometry begins sa follows: "Let us consider a manifold, where there is a coordinate system, and dimension of the manifold is equal n. Does it mean, that the...
11 November 2014 901 33 View
