High Quality Content by WIKIPEDIA articles! Ehrenfried Pfeiffer was a scientist, anthroposophist and disciple of Rudolf Steiner. Ehrenfried Pfeiffer began work with Rudolf Steiner in 1920 to develop and install special diffuse stage lighting for eurythmy performances on the stage of the first Goetheanum. After Steiner's death in 1925, Pfeiffer worked in the private research laboratory at the Goetheanum in Dornach. He became manager and director of an 800-acre experimental biodynamic farm at Loverendale, Holland. This farm was set up to carry out some of the agricultural studies of the Goetheanum laboratory.

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