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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.
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
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 ...
A meteor is caught as a blurred line in this eight-second exposure Aug. 12, 2023 of the Milky Way over Abilene State Park. Meteor showers tends to be most visible after midnight, which is when ...
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 .
A shooting star from the Perseid meteor shower streaks through the night sky amid the vivid colors of aurora borealis over the North Sea near Pilsum, Germany, on Aug. 12, 2024. / Credit: Matthias ...
The Mu virginids are a minor meteor shower stream, visible in April [18] and early May. The shower typically lasts from April 1 to May 12, peaking around April 24 [ 19 ] to April 25. Its radiant is near Libra , peaking with seven to ten meteors per hour.