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Telharmonium console by Thaddeus Cahill 1897. The Telharmonium (also known as the Dynamophone [1]) was an early electrical organ, developed by Thaddeus Cahill c. 1896 and patented in 1897. [2] [3] [4] The electrical signal from the Telharmonium was transmitted over wires; it was heard on the receiving end by means of "horn" speakers. [5]
Thaddeus Cahill (June 18, 1867 – April 12, 1934) was a prominent american inventor of the early 20th century. He is widely credited with the invention of the first electromechanical musical instrument, which he dubbed the telharmonium. He studied the physics of music at Oberlin Conservatory in Oberlin, Ohio.
Immediate source: The ‘Telharmonium’ or ‘Dynamophone’ Thaddeus Cahill, USA 1897. 120 Years of Electronic Music (120years.net). Date: 1907 (original file) Source: This file was derived from: Telharmonium - Scientific American 1907.png: Author: Telharmonium - Scientific American 1907.png: Unknown author; derivative work: Clusternote
Geminids: Nov. 19-Dec. 24, peaking Dec. 13-14. Ursids: Dec. 13-24, peaking Dec. 21-22. This article originally appeared on USA TODAY: Leonid meteor shower in 2023: When to watch, where to look in Iowa
Astronomy enthusiasts, brace yourselves for a dazzling display as the Quadrantids, the first meteor shower of 2025, light up the sky. The Quadrantids are unique among meteor showers as they ...
See also: List of meteor showers The Ursid (URS) meteor activity begins annually around December 17 and runs for over a week, until the 25th or 26th. This meteor shower is named for its radiant point, which is located near the star Beta Ursae Minoris (Kochab) in the constellation Ursa Minor .