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This contribution deals with the connections to be found between reductionist and phenomenological chemistry. How can molecular thinking be linked with the manifest properties of substances and above all with the world of human perception? A ‘multi-level chemistry’ is... Read More

We know from the history of arts and crafts that early experience of ‘practical chemistry’ dates back to very early times. Apart from the production of materials such as metal, glass and clay as well as tanning and dyeing, fermentation processes used in food production and... Read More

The significance of chemistry as a school subject with a structure for general education Will be outlined. In addition, the necessity of such an education will be explained. In accordance with the guidelines for education in Waldorf or Rudolf Steiner Schools, a methodological... Read More

During normal soil development, nutrient-rich primary silicates and other minerals are broken down and the plant nutrients in them are released into the soil solution. With increasing intensity of agricultural use there is a corresponding increase in the turnover of... Read More

Die chemische Strukturformel einer reinen Substanz gibt Auskunft darüber, wie die Atome der enthaltenen Elemente zueinander und im Raum angeordnet sind und welche Qualität die Bindungen zwischen den Atomen haben. Es ist ein wichtiges Ergebnis der chemischen Forschung dieses... Read More

Rudolf Steiner proposed that in the twelfth school year at the Waldorf School chemistry should be taught in its most intimate connection with man. ‘It would be desirable to have an inorganic, an organic, an animal and a human chemistry.’ In this connection too, the metal... Read More

Berichte der Arbeitsgruppen im Zuge der Tagung zu Handeln und Erkennen in der Chemie.

Through investigating the relation between light and colour, Goethe’s method of natural science is applied to the ”gestures of ideas” of modern research in physics.

In section 1 of this paper an explanation is given in some detail of how the processes of generating... Read More

The simplest arrangements of edges that give rise to the phenomenon of light diffraction are presented. Especially two of them are of particular importance. They imply two different types of optical imaging and generate diffraction patterns of opposite character. One involves... Read More

In der Schule passiert täglich Kurioses. Nicht nur im Zwischenmenschlichen, sondern auch mit dem Unterrichtsstoff selbst. Immer wieder leben im Unterrichtsgespräch meist vage und tastend formuliert - Fragen auf, welche die Lehrerinnen und Lehrer zu neuen, unkonventionellen... Read More

In Veröffentlichungen in den Elementen der Naturwissenschaft der letzten 30 Jahre spielt der Begriff der Gegenläufigkeit eine wesentliche Rolle. Jochen Bockemühl (1966, 1967) stellte beim Vergleich von Blattmetamorphosereihen mit der Ontogenese individueller Blätter eine... Read More

Are heterochrony and retention driving forces in the macroevolution of plants? The arguments of Wolfgang Schad in his article «Evolution durch Retention - Zur Makroevolution der ersten Landpflanzen, der höheren Tiere und des Menschen» in «Goethes Beitrag zur Erneuerung der... Read More