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by Science Source
$6.95
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Our greeting cards are 5" x 7" in size and are produced on digital offset printers using 100 lb. paper stock. Each card is coated with a UV protectant on the outside surface which produces a semi-gloss finish. The inside of each card has a matte white finish and can be customized with your own message up to 500 characters in length. Each card comes with a white envelope for mailing or gift giving.
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Gustav Theodor Fechner. Born Gross-SSrchen, Lower Lusatia, 19 April 1801. Died Leipzig, Germany, 18 November 1887. Fechner earned his degree in... more
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Gustav Theodor Fechner. Born Gross-SSrchen, Lower Lusatia, 19 April 1801. Died Leipzig, Germany, 18 November 1887. Fechner earned his degree in biological science in 1822 at the University of Leipzig and taught there until his death. He was appointed professor of physics in 1834. During an experiment to study color and vision, he damaged his eyes looking at afterimages, while gazing at the sun. This forced him to retire in 1839. Henceforth, he devoted himself to the study of the mind/body relationship. He lectured and wrote extensively on the subject. Fechner's most significant contributions to the examination of the mind/body dichotomy were made in his Elemente der Psychophysik (1860), and in his Revision der Hauptpunkte der Psychophysik (1882). These works are the basis for his reputation as the founder of experimental psychology, because they provide quantitative methods for measuring mental functions; e.g.- The Weber-Fechner law, expressed as follows "In order that the intensity of...
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