Dutch physicist. Born 1931 in Zeist, School in Exmouth and Tavistock, England. Degree of Engineering in Physics, Delft, 1954. PhD in Grenoble, France, 1962.

Taught Physics, University of Ibadan, Nigeria, 1962-64.

Philips Research 1965-1978

Consultant on Energy and Environment 1978-1996, mainly in West Africa for World Bank, FAO, Netherlands (DGIS)

Active member of the Pugwash Conferences on Science and World Affairs

Enjoy riding my 3-wheeled cycle, and improving OSM to add purpose to the riding around.