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Elemente der Naturwissenschaft111,2019The “Hofstetter Chöpfli” is located in the Basel region – a strikingly warm and dry region north of the Alps on the southern edge of the Upper Rhine lowlands. The region favours the downy oak (Quercus pubescens), semi-dry... read more
Elemente der Naturwissenschaft111,2019The experimental conditions of the copperchloride crystallisation method in presence of additives was recently rewiewed. A new operating procedure allowed improving the homogeneity of a crystallogram set as well as the discriminating power of the... read more
Elemente der Naturwissenschaft111,2019In the spring of 1830, a memorable debate took place in Paris between two scientists – colleagues and friends – on the question of which principles organize the living. It seemed to be a rather dry topic, yet crowds flocked to the... read more
Elemente der Naturwissenschaft110,2019This article aims to show that sensual observations in the high voltage and high current laboratory can contribute to a differentiation and enrichment of the concepts of electricity and magnetism. The arrangement of phenomena according to qualitative... read more
Elemente der Naturwissenschaft110,2019Some examples from mathematics and geometry illustrate how the infinite appears as a space of possibility when presented as a process of continued lawful activity. In contrast, the actual concept of infinity works with a set of mathematical objects,... read more
Elemente der Naturwissenschaft110,2019Often different phyllotactic patterns occur in plants of the same species or even in shoots of the same plant. On plants with densely standing “eyes,” like the cacti, the phyllotactic pattern is well recognizable. It is usually strictly geometric.... read more
Colloquium
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Elemente der Naturwissenschaft111,2019Steigt er mit dienstlichem Auftrag aus dem Polizeiauto, hat er Uniform an und Kappe auf, die Pistole an der Seite und den Ausweis in der Tasche, sind wir sicher, dass es sich um einen Polizisten handelt. Woran aber erkennen wir den Polizisten, wenn er nicht uniformiert ist? An seinem Ausweis? Macht der Ausweis den... read more
Elemente der Naturwissenschaft111,2019Um zu präzisieren, was mit der Aussage «Nichts ist im Verstand, was nicht vorher in den Sinnen gewesen wäre» gemeint sein könnte und um das Verhältnis von Verstand und Sinn zu erhellen, möchte ich Heinrich Barths systematischen Ansatz beiziehen, mit dem er dieses Verhältnis in seinem Werk «Erkenntnis der Existenz» auslegt.... read more
Elemente der Naturwissenschaft111,20191. Introduction
A small group in Christchurch, New Zealand, has been studying the Warmth course1. Two members of the group, of which I was one, realised that Steiner’s treatment of temperature lacks clarity and homogeneity. Both of us have a scientific training (i.e. mathematics and chemistry/physics)... read more