English
Spiritual-scientific Impulses towards the Development of Physics 1 The First Natural-scientific Course: Light, Color, Tone - Mass, Electricity, Magnetism (CW 320) aka the "Light Course" Originally published in German as Geisteswissenschaftliche Impulse zur Entwickelung der Physik I: Erster naturwissenschaftlicher Kurs: Licht, Farbe, Ton – Masse, Elektrizität, Magnetismus (GA 320) Published 1924 A collection of ten lectures.
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Livro digital · Spiritual-scientific Impulses towards the Development of Physics 1 (CW 320) · Steiner, Rudolf · Internet Archive
anthroposophy