History
William K. Heine presented a paper entitled A Laser Scanning Phonograph Record Player to the 57th Audio Engineering Society (AES) convention in May 1977. The paper details a method developed by Heine that employs a single 2.2 mW Helium-neon laser for both tracking a record groove and reproducing the stereo audio of a phonograph in real time. In development since 1972, the working prototype was named the "LASERPHONE" and the methods it used for playback was awarded U.S. Patent 3,992,593 on November 16, 1976. Heine concluded in his paper that he hoped his work would increase interest in using lasers for phonographic playback.
Read more about this topic: Laser Turntable
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—Ralph Waldo Emerson (1803–1882)
“Culture, the acquainting ourselves with the best that has been known and said in the world, and thus with the history of the human spirit.”
—Matthew Arnold (1822–1888)
“Every generation rewrites the past. In easy times history is more or less of an ornamental art, but in times of danger we are driven to the written record by a pressing need to find answers to the riddles of today.... In times of change and danger when there is a quicksand of fear under men’s reasoning, a sense of continuity with generations gone before can stretch like a lifeline across the scary present and get us past that idiot delusion of the exceptional Now that blocks good thinking.”
—John Dos Passos (1896–1970)