ONTWIKKELING Het drieslagstelsel was bedoeld om het hele jaar door eten te hebben. Je had wintergraan, zomergraan en een stuk land lag braak. Het jaar daarop lag weer een ander stuk braak dus je had heel het jaar door eten.
A planetary system based on the musical proportion, 6, 8, 9, 12, of the arithmetic mean and the harmonic mean between the geometic ratios of 6 and 12, along with the other tones of the Pythagorean diatonic (major) scale (Lawlor, Robert. 1982. Sacred Geometry. Thames & Hudson, London)
Learn about the Cell Cycle and Mitosis with this handy resource that works 3 ways: as a note, as a puzzle and as a spinner. Lots of variations to meet the needs of high-flyers and struggling students. Mrs. Brosseau's Binder blog.
The first six books of the Elements of Euclid, ... a fascinating book -- both visually & in terms of mathematics -- that uses colored figures in place of words to describe Euclidean geometry. (published late 1800s)
our surprised craftsman would soon discover that all five stone arrays can be overlapped one upon the other with different comer matchings until a beautiful polyhedron with 121 “great circles” and 4,862 points has been developed. This is the ultimate single sphere pattern which houses all five Platonic solids within multiple orientations