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In the polarity of action and perception in chemistry the emphasis seems to be on action. Several stages in the development of the concepts of ‘Optical Activity’ and ‘Chirality’ since the 17th century show that physical experiments (actions) lead to several mathematical... Read More

Despite the very important role of chemistry in technology, civilisation and shaping our view of the world it has been neglected by philosophy and the humanities. For several reasons, it cannot be regarded as an appendix to physics and treated as such in the theory of science... Read More

The variation in colour of the human skin is mediated by the coloured substances melanin and haemoglobin, and to a lesser degree by carotene. Spectrophotometric analysis reveals that the distribution of these three pigments within the human organism is differentiated. On the... Read More

One reason for investigating medicinal plants is that it gives hints from empirical experience about their therapeutic effects. It is generally believed that this experience is obtained by chance. Thus deducing therapeutic effects from exact observation of the plant,... Read More

This paper is about the relationship of cholesterol to human physiology. Cholesterol is synthesised by the human body. On the other hand, triglyceride fats are required in our diet because our body cannot synthesise essential fatty acids. Comparing the physiology of... Read More

This contribution describes how people related to the waste they produce throughout the ages until the present. Undoubtedly the amount of waste that we discard nowadays is unsustainable. This is also due to its chemical properties. Meanwhile an ‘ecological consciousness’ has... Read More

The article reviews and extends interspecific correlations between the main components of milk of different mammalian species and certain aspects of their biology. Proteins are correlated with postnatal growth, but not all proteins are really nutritive. Lipids are correlated... 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

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

Understanding the Earth as a self-contained organism is fundamental to a Goethean approach. But how can we develop a concrete picture of it based on sensorial experience? An autonomous organism is recognisable by three essential components: rhythmical life processes, heat... Read More