Uploaded June 2017 | Updated September 2026, 1 week ago
demonstrations.wolfram.com/HydrogenAtomFineStructureOfEnergyLevels
The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily.
The energy levels of the hydrogen atom E^(0), taking account only of the Coulomb interaction between the electron and proton, are shown on the left. Perturbed energy levels E^(0)+E^(1), also including spin-orbit interaction and relativistic corrections,...
Contributed by: Lukas Rafaj
Audio created with WolframTones:
tones.wolfram.com
demonstrations.wolfram.com/HydrogenAtomFineStructureOfEnergyLevels
The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily.
The energy levels of the hydrogen atom E^(0), taking account only of the Coulomb interaction between the electron and proton, are shown on the left. Perturbed energy levels E^(0)+E^(1), also including spin-orbit interaction and relativistic corrections,...
Contributed by: Lukas Rafaj
Audio created with WolframTones:
tones.wolfram.com

![Powered Clique Polyhedra
http://demonstrations.wolfram.com/PoweredCliquePolyhedra
The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily.
Can a tetrahedron be divided into similar tetrahedra of different sizes? The answer is not known, but a solution for triangles was found by Zak [1]. This triangle, shown further in [2], has edges that are all powers of ?=1.1509639252577..., a ro...
Contributed by: Ed Pegg Jr
Audio created with WolframTones:
http://tones.wolfram.com Powered Clique Polyhedra](https://i.ytimg.com/vi/FSdRtVPul30/mqdefault.jpg)


![The Plemelj Construction of a Triangle: 3
http://demonstrations.wolfram.com/ThePlemeljConstructionOfATriangle3
The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily.
This Demonstration constructs a triangle ABC given the length c of its base AB, the length h_C of the altitude from C to AB and the difference ?=?-? between the angles at A and B. Let m=SqrtBox[RowBox[{SuperscriptBox[c, 2], +, SuperscriptBox[RowBox[{(, ...
Contributed by: Izidor Hafner
Audio created with WolframTones:
http://tones.wolfram.com The Plemelj Construction of a Triangle: 3](https://i.ytimg.com/vi/FrjAm4efl7I/mqdefault.jpg)





