Background
Rijk, Johannes Adrianus de was born on February 19, 1926 in Rotterdam, The Netherlands.
mathematics and physics educator writer
Rijk, Johannes Adrianus de was born on February 19, 1926 in Rotterdam, The Netherlands.
Diploma in teaching, Pedagogical Academy, Ondenbosch, The Netherlands, 1945.
High school teacher, Utrecht, The Netherlands, 1952-1986. Founder 1st public observatory in The Netherlands.
Mrm. Ars & Mathematics (secretary 1986-1997), The Sundial Circle (secretary 1982-1997).
Married Magdalena Agterberg, May 24, 1977. Children: Mechtilde, Hadewych.