@article{10.18756/jfg.2011.187,
	title = {{Ur-Experimente zur ph{\"a}nomennahen Bildung der Begriffe {\guillemotright}Polarisation des Lichtes{\guillemotleft} und {\guillemotright}Optische Aktivit{\"a}t{\guillemotleft} einer Substanz }},
	shorttitle = {{Ur-Experimente zur ph{\"a}nomennahen Bildung der Begriffe {\guillemotright}Polarisation des Lichtes{\guillemotleft} und {\guillemotright}Optische Aktivit{\"a}t{\guillemotleft} einer Substanz }},
	author = {Pr{\"o}bstl, Albert},
	journal = {Jahrbuch für Goetheanismus},
	year = {2011},
	volume = {2011},
	pages = {187--248},
	url = {https://dx.doi.org/10.18756/jfg.2011.187},
	doi = {10.18756/jfg.2011.187},
	issn = {Print :1866-4830 Online : 2750-2341 },
	language = {de},
	abstract = {},
	annote = {Archetypal experiments for conceptualising both the polarisation of light and the optical activity of a substance while staying close to the phenomenaIn the 17 century C Huygens described the phenornene merveilleux a wonderful optical experiment with two calcite Iceland spar crystals ln connection with this a series of three even more wonderful experiments were conceived in which transparent mica quartz or an optically active substance formed by life were each placed between the calcite crystals These experiments have not so far been described by the science historian but together show all the optical phenomena with complete complementarity Thus for example they produce Goethes complete colour circle and in the nuances of peach blossom Steiners twelvecolour circle can be vividly presented through experimentLooking at the series of experiments helps us to Form concepts that are close to the phenomenon The modern concept polarisation of light supporting the physicalmechanical model of electromagnetic transverse waves can be extended or replaced by a concept of a polarisation in two opposite qualities formed directly by experiment The phenomenon of the optical activity of a substance led historically to the tetrahedral spatial model of carbon which for the first time enabled an understanding of the spatial structure of organic chemical molecules This solely spatial way of picturing it can be conceived as a process unambiguity through ideation that comprehends the temporal dimension from the living worldln these archetypal experiments important crystal properties of optically pure quartz and calcite crystals are recognisable Considered in a Goethean way particular properties of the mineral archetypal polarity of calcite and silica are further intensified in carbon This makes it possible to understand the role of carbon as the bearer of spatialtemporal formative processes in the living world}
}