Leen Noordzij – This blog is about, business, climate change, culture, economics, physics, education, Fermat, history, innovation, mathematics, politics, quantum mechanics and technology.

When everybody is going in one direction, choose another one.

Groupthink is the end of humanity.

28 Jan 2022Leen NoordzijLeave a Comment

Quantum Mechanics in Pennsylvania-Undergraduate Course Updated 2022-01-28 Chapter 8, Schrödinger Wave Equation, 1-D Quantum Systems Problem 8.15.18 Eigenstates using Coherent States

28 Jan 202228 Jan 2022Leen NoordzijLeave a Comment

Wiskunde D Online VWO 5 Summary Blok 8-14 and Solved Problems Mathematics, Preparation for College, yOUlearn Blok 13 Poisson Distribution, Les 2, 2022-01-28 , Opgave 12 in de summary en Oefenopgave 17

27 Jan 2022Leen NoordzijLeave a Comment

Wiskunde D Online VWO 4 Summary Blok 1-7 and Solved Problems Mathematics, Preparation for College, yOUlearn Updated Blok 5 Les 2 Normal Distribution 2022-01-27, Edited, Lay-out, Typos and Additions

25 Jan 2022Leen Noordzij2 Comments

De Fermat’s Last Theorem and Pythagorean Triples In Search for the Margin of Diophantus 2022-01-25 Edited and § 4 Prime Numbers, Pythagorean Triples and Proof of the nonexistence of Fermat Triples.

22 Jan 2022Leen NoordzijLeave a Comment

A Platform-Expert System to support Business and Society with Compliance for Regulations on Climate Change, GDPR, CCPA, Product Safety and Health. Edited and Updated 2022-01-22, § 3.7 Sustainable Investing, § 6 Healthcare, §11 Addition valuation

21 Jan 2022Leen NoordzijLeave a Comment

Innovation and Its Fallacies. Expect the improbable. A change from exnovation to innovation. Updated 2022-01-21 Prologue Serendipity

15 Jan 2022Leen NoordzijLeave a Comment

De beginjaren van de THT. An experiment with Liberal Arts at Twente Institute of Technology. Mijn studie en promotie aan de THT 1964-1973. Updated 2022-01-15 Edited and Updated Aanvulling op pagina 20: de Campus met twee opmerkelijke objecten

8 Jan 20228 Jan 2022Leen NoordzijLeave a Comment

Adaptation to Climate via Morphological Change. Optimizing Heat Exchange Updated 2022-01-08 and Edited Toucan

2 Jan 2022Leen NoordzijLeave a Comment

Isoperimetric Inequality and the Isoepifaeic Inequality Updated 2022-01-02 footnote 2, page 31

2 Jan 2022Leen NoordzijLeave a Comment

Mijn geschiedenis van de haven van Pernis. 1942-1954, de haven, het water en de watersnood. Updated 2022-01-02, Aanvullingen en de voetnoten 5 en 14

dr.l.noordzij@leennoordzij.nl