High Speed Stock Tickers to Ease Record Market Days (Jun, 1930)
And now this tech has progressed to the point where the limiting factor is the speed of light.
High Speed Stock Tickers to Ease Record Market Days
THE Western Union is spending $4,500,000 in an effort to speed up stock quotation service. The task is the largest in quotation service history and is the culmination of three years of labor, six months’ training of personnel in schools
of five cities, the construction of 5,000 city to city wiring and circuit channels in 350 cities and towns in the North American continent. High speed tickers have been ordered at a cost of $2,500,000 to be rented to brokers in the United States.
“Skip Distance” a Radio Mystery (Dec, 1929)
This, of course, is the radio waves bouncing off of the ionosphere. I think they’ve known this for quite a while though. Does anyone know when it was figured out?
“Skip Distance” a Radio Mystery
TO MANY uninitiated to the mystery of radio the phenomenon known as ‘”skip distance” is most puzzling. The layman might reasonably assume that the closer one is to a broadcast station the stronger the signals received. That is largely true with ordinary longwave stations but with a shortwave transmitter the situation changes. For instance a short-wave transmitter in New York operating on less power than is ordinarily used by long-wave stations may be picked up in Australia but not be picked up at all by receivers less than 500 miles from the transmitter.
207 Talk Across Ocean on Xmas (Mar, 1931)
I’m pretty sure that there is enough bandwidth out there now that every single person on earth could be on the phone at the same time. Though, there’d probably be some seriously over saturated lines in more remote locales.
Incidentally, those calls cost roughly $119 a minute in 2009 dollars.
207 Talk Across Ocean on Xmas
CHRISTMAS traffic on the overseas telephone circuits of the American Telephone and Telegraph Company this year eclipsed all previous records. Throughout the day a total of 207 messages was handled, and the connections established involved Europe, South America, Australia, and the “S. S. Belgeland” off the west coast of Central America.
Practically all of the traffic was of a social or personal nature, involving interchange of holiday greetings. The average length of the conversations was five minutes, at a rate of $30 for the first three minutes.
She Tells Herself the Time (Aug, 1936)
I’ve always wondered if the MoviePhone guy ever uses his own service and if it freaks him out.
She Tells Herself the Time
LONDON now has a time-telling telephone service, obtained by dialing T-I-M on the automatic exchanges. A natural-sounding voice gives the time— but it is, as a matter of fact, a phonographic reproduction. It has been recorded on a glass disc, in the same manner as sound tracks are put on moving-picture films, and similarly reproduced electrically in any telephone circuit connected in. The phone thus functions as does a theatre loud speaker, when connected in the projector’s amplifier circuit.