Search results
Results from the WOW.Com Content Network
The 1939 film The Story of Alexander Graham Bell was based on his life and works. [233] The 1965 BBC miniseries Alexander Graham Bell starring Alec McCowen and Francesca Annis. The 1992 film The Sound and the Silence was a TV film. Biography aired an episode Alexander Graham Bell: Voice of Invention on August 6, 1996.
Some of the most significant products of Scottish ingenuity include James Watt's steam engine, improving on that of Thomas Newcomen, [3] the bicycle, [4] macadamisation (not to be confused with tarmac or tarmacadam [5]), Alexander Graham Bell's invention of the first practical telephone, [6] John Logie Baird's invention of television, [7] [8 ...
Scotsman Alexander Graham Bell patents the telephone in the U.S. [46] The first safety bicycle is designed by the English engineer Harry John Lawson (also called Henry). Unlike the penny-farthing, the rider's feet were within reach of the ground, making it safer to stop. 1878. Demonstration of an incandescent light bulb by Joseph Wilson Swan ...
Alexander Graham Bell (1847–1922) significantly reduces interfering noises by using a wax cylinder instead of tin foil. This paved the way for commercial success for the improved phonograph. American Oberlin Smith describes a process to record audio using a cotton thread with integrated fine wire clippings
The discovery of the photoacoustic effect dates back to 1880, when Alexander Graham Bell was experimenting with long-distance sound transmission. Through his invention, called "photophone", he transmitted vocal signals by reflecting sun-light from a moving mirror to a selenium solar cell receiver. [3]
HD-4 or Hydrodome number 4 was an early research hydrofoil watercraft developed by the scientist Alexander Graham Bell. It was designed and built at the Bell Boatyard on Bell's Beinn Bhreagh estate near Baddeck, Nova Scotia. In 1919, it set a world marine speed record of 70.86 miles per hour (114.04 km/h).
The Volta Prize of the French Academy Awarded to Prof. Alexander Graham Bell: A Talk With Dr. J.M. Sternberg, The Evening Traveler, September 1, 1880, The Alexander Graham Bell Papers at the Library of Congress; Thompson, Silvanus P. "Notes on the Construction of the Photophone". Phys. Soc.Proc., Vol. 4, 1881, pp. 184–190.
1880 Alexander Graham Bell, for invention of the telephone. A secondary prize of 20,000 francs was awarded to Zénobe Gramme. [1] [2] 1888 Zénobe Gramme, for his labours in introducing and perfecting the continuous-current dynamo. [11] [4]