Search results
Results From The WOW.Com Content Network
Cyrus Hall McCormick portrait, held by the National Portrait Gallery in Washington, D.C. Cyrus Hall McCormick was born on February 15, 1809, in Raphine, Virginia. He was the eldest of eight children born to inventor Robert McCormick Jr. and Mary Ann "Polly" Hall. As Cyrus's father saw the potential of the design for a mechanical reaper, he ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 22 January 2025. Technical and legal issues surrounding the development of the modern telephone For broader coverage of this topic, see History of the telephone. Replica of Antonio Meucci's telettrofono Reis's telephone The invention of the telephone was the culmination of work done by more than one ...
Cyrus McCormick: 1809 Mechanical reaper [15] 1976 Enrico Fermi: 1901 Nuclear fission [18] 1976 Rudolf Diesel: 1858 Internal-combustion engine [19] 1976 Charles Hard Townes * 1915 Laser [20] 1977 Charles Steinmetz: 1865 Alternating current [21] 1977 Edwin H. Land: 1909 Polaroid [22] 1977 George Eastman: 1854 Photography [23] 1977 Lee De Forest ...
The Elisha Gray and Alexander Bell telephone controversy considers the question of whether Bell and Gray invented the telephone independently and, if not, whether Bell stole the invention from Gray. This controversy is narrower than the broader question of who deserves credit for inventing the telephone, for which there are several claimants.
The telephone played a major communications role in American history from the 1876 publication of its first patent by Alexander Graham Bell onward. In the 20th century the American Telephone and Telegraph Company (AT&T) dominated the telecommunication market as the at times largest company in the world, until it was broken up in 1982 and replaced by a system of competitors.
20 March 1880: National Bell Telephone merges with others to form the American Bell Telephone Company. 1 April 1880: world's first wireless telephone call on Bell and Tainter's photophone (distant precursor to fiber-optic communications) from the Franklin School in Washington, D.C. to the window of Bell's laboratory, 213 meters away. [20] [21]
America Online CEO Stephen M. Case, left, and Time Warner CEO Gerald M. Levin listen to senators' opening statements during a hearing before the Senate Judiciary Committee on the merger of the two ...
Cyrus Hall McCormick Sr., founder of the McCormick business dynasty. Robert McCormick Jr. (1780–1846) was an American inventor who lived in rural Virginia. [1] His maternal grandparents were Scottish immigrants, George Sanderson and Catharine (née Ross) Sanderson, and paternal grandparents were Thomas (1702–1762) and Elizabeth (née Carruth) McCormick, Presbyterian immigrants born in ...