1953
birth in Eindhoven, NL
1971-79
education in biology and architecture
1980
question of pattern formation of sunflower seeds: “How can I produce these spirals without a pencil?"
1987
algorithm which develops phyllotactic patterns
1990
first scientific publication and first version of Apex
1994
PhD - architecture in biology, biology in architecture
1996
publication of The Stack-and-Drag Model
2015
introduction of the concept of Phyllotactic beauty