History – Leen Noordzij

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.

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

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

9 Aug 20219 Aug 2021Leen NoordzijLeave a Comment

Prime Numbers, Pythagorean Triples and Goldbach’s Conjecture Updated 2021-08-09 Edited, Prologue The Babylonians

4 Jul 20214 Jul 2021Leen NoordzijLeave a Comment

De Fermat and the method of ‘Descente infinie’ Updated 2021-07-04 §§ 3.1 and 4.

22 Jun 202122 Jun 2021Leen NoordzijLeave a Comment

Innovation, Education, Research and Reengineering Updated and Edited 2021-06-22 Conclusions pages 10, 11 and footnote

2 Apr 20212 Apr 2021Leen NoordzijLeave a Comment

A History of Shipping and Propulsion Edited and Updated 2021-04-02 Youtube video’s added.

27 Apr 2020Leen NoordzijLeave a Comment

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

dr.l.noordzij@leennoordzij.nl