On After-Images (Classic Reprint) - Softcover

Inhaltsangabe

Excerpt from On After-Images

After-images were first described in the De Somm'a's by Aristotle, who regarded them as closely allied to the centrally excited images of-the dre'am-state they were rediscovered and described anew by St. Augustine, and again by the Arab AI h-azan (a student of Aristotle's works) in the eleventh century. Peiresc, in describing these appearances in the seventeenth century, thought that he had discovered a new phenomenon. Among other prominent investigators to note and experiment With the images were Boyle, N ewton, Buffo-n, Goethe, the elder Darwin and Fechne'r.

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