Skip to content
This blog is about, business, climate change, culture, economics, physics, education, Fermat, history, innovation, mathematics, politics, quantum mechanics and technology.

# Category: Physics

## Quantum Mechanics in Pennsylvania-Undergraduate Course Updated 2021-10-16 Chapter 7, Photons, K-Mesons and Stern-Gerlach . Problem 7.5.11 Find the Phase Angle Up to c)

## Quantum Mechanics and the Theoretical Minimum Updated 2021-08-16 Section 4.8 Ignoring the Phase Factor in Exercise 3.4 and the matrix σn some phase factors could not be ignored.

## Raindrops keep falling on my umbrella. Or how to survive as an umbrella manufacturer. Edited and Updated 2021-07-06.

## Quantum Mechanics in Texas, The Graduate Course Updated 2021-06-27 Section 5.4 Intermezzo Baker-Hausdorff Lemma

## The Theoretical Minimum to Study Classical Physics Updated 2021-06-10 Edited, A.2.3 Mathematical Proof of Kepler’s Swiped Area Law, page 55 of my notes

## Quantum Mechanics found in a nutshell. Updated 2021-04-29 I leave the Mahan Course

## On Special relativity and Classical Field Theory The theoretical minimum Updated 2021-02-26, Edited Up to Exercise 6.2, page 241

## Quantum Mechanics in Texas. The Undergraduate Course. Updated 2020-09-12 Sections 15.6-15.8

## Incompleteness, Uncertainty and Archimedes ‘Lever’. Update 2020-05-25, Section on Division of an angle in three equal parts removed and separated published on www.leennoordzij.me

## Puzzles with my grandchildren Updated 2020-04-27 Water-lilies growing in a pond