ARLA/CLUSTER: The Abandoned Microwave Towers That Once Linked the US | WIRED

Sergio Matias srg814 gmail.com
Quinta-Feira, 12 de Março de 2015 - 14:52:56 WET


" AT&T made history 63 years ago when it launched the $40 million microwave
radio-relay skyway, a network of 107 microwave towers designed to transmit
telephone and television signals nationwide. The system took three years to
build, and the first call was placed on August 17, 1951. But just as
microwaves replaced wires, fiber optics eventually replaced microwaves, and
AT&T’s giant towers were abandoned. (..) "

source:
http://www.wired.com/2015/03/spencer-harding-the-long-lines/

project:
http://spencerjharding.com/project/the-long-lines/
https://www.indiegogo.com/projects/the-long-lines-a-photographic-adventure

book:
http://spencerjharding.com/books/the-long-lines/


73,
-- Sérgio/ct1hmn
-------------- próxima parte ----------
Um anexo em HTML foi limpo...
URL: http://radio-amador.net/pipermail/cluster/attachments/20150312/a827c9dc/attachment.html


Mais informações acerca da lista CLUSTER