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Lloyd Espenschied
In 1929,
Lloyd Espenschied and Herman Affel invented coaxial cable at the
AT&T Bell Telephone Laboratories. This technological breakthrough
allowed for long distance telephone service, making it possible
to carry thousands of simultaneous phone calls on long distance
circuits.
Coaxial
cable is a copper cable lined with two concentric cylinders of
conducting material. It is widely used by cable TV and telephone
companies for homes and businesses. Its effective transmission
of high frequencies over long distances is the industry standard
used in business and corporation Ethernets.
Espenschied
also contributed to the development of wire distribution of radio
programming used in network radio. He patented a collision avoidance
system using reflected waves for railroad trains, and later applied
similar techniques for a radio altimeter for airplanes.
Born
in St. Louis, Missouri, Espenschied studied at the Pratt Institute,
graduating in 1909. He held over 130 patents, and his extensive
contributions to the field of telecommunications earned him the
Institute of Radio Engineers' Medal of Honor.
Herman
A. Affel
Karl Bosch
Lloyd
Espenschied
Willard S.
Boyle
George E.
Smith
Vinton G. Cerf
Robert E. Kahn
Robert W. Gore
Fritz Haber
Richard M. Hoe
Benjamin Holt
Ali Javan
Dale Kleist
Robert S.
Langer, Jr.
Julio C.
Palmaz
Gregory G.
Pincus
Russell
Games Slayter
George E.
Smith
John H. Thomas
Elihu
Thomson
William Erastus
Upjohn
Granville
T. Woods
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