Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I ...

Emerging ‘co-scientist’ systems use teams of chatbots to mimic the deliberations of a research group. Do they really help?

It is assumed that an undiscovered “fifth force” likely exists between neutrons in an atom’s nucleus and the electrons ...

Syllabus: The NTA has put the official JEE Main 2026 Syllabus online on their website: jeemain.nta.nic.in. If you're planning ...

Richard Crane, Arthur Ruhlig’s thesis advisor, with the University of Michigan accelerator used for experiments. Photo ...

Some physicists reject philosophy as a distraction from ‘real’ science but it is in fact both useful and beautiful ...

Pauli’s key addition to Bohr’s model was a fourth quantum number — one that, unlike Bohr’s, had no analogy with classical physics, and not even any visual representation in space-time.

His particular bone of contention was the Bohr–Sommerfeld model of the atom, named after the two physicists, Niels Bohr and Arnold Sommerfeld, who developed it in the 1910s.

Bohr acknowledged that his atomic model was an approximation and that further work in quantum theory would be needed to fully understand the behavior of atoms, particularly multi-electron systems.