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Andrew Smith Hallidie (March 16, 1836 – April 24, 1900) was an American entrepreneur who was the promoter of the Clay Street Hill Railroad in San Francisco. This was the world's first practical cable car system, and Hallidie is often therefore regarded as the inventor of the cable car and father of the present day San Francisco cable car system, although both claims are open to dispute.
He founded Service Electric in 1948; the family-owned cable television provider services Pennsylvania and northwestern New Jersey. Walson is widely considered to have invented cable television in 1948. The popular account involves him solving problems receiving radio signals from Philadelphia television stations, which were blocked by mountaintops.
His Jacob's Creek Bridge, built in 1801 for US$600 ($10,987 in 2023), [3] and demolished in 1833, was the first example of a suspension bridge using wrought iron chains and with a level deck. It connected Uniontown to Greensburg , spanning 70 feet (21 metres), and was 12 feet 6 inches (3.81 m) wide.
This List of cable-stayed bridges in the United States includes notable cable-stayed bridges, both existing and destroyed, in the United States of America, organized by name. Contents A
The Ed Hendler bridge is a marvel, but its light system is old old old. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us ...
Marc Seguin suspension bridge near Annonay, 1825. Seguin was an inventor and entrepreneur who developed the first suspension bridge in continental Europe. He built and administered 186 toll-bridges throughout France.
A railway pioneer is someone who has made a significant contribution to the historical development of the railway (US: railroad). This definition includes locomotive engineers, railway construction engineers, operators of railway companies, major railway investors and politicians, of national and international importance for the development of rail transport.
"View of the Chain Bridge invented by James Finley Esq." The Port Folio, June 1810, William Strickland, delineator. [2] The Chain Bridge at Falls of Schuylkill, an iron-chain suspension bridge designed by James Finley, was built at Falls of Schuylkill in 1808. [3] It was among the earliest suspension bridges erected in the United States.