Αποτελέσματα Αναζήτησης
The first satellite relayed phone calls were achieved early on in the space age, after the first relay test was conducted by Pioneer 1 and the first broadcast by SCORE in 1958 at the end of the year, after Sputnik I became at the beginning of the year the first satellite in history.
Starting with the Iridium satellite phone, Iridium was the first handheld satellite phone to offer planetary coverage. Originally the Iridium satellite constellation consisted of 77 active satellites that orbited the earth from pole to pole.
So began the first phone call ever routed through a commercial satellite, designed and flown by AT&T, Bell Labs, NASA, and the English and French governments. (Despite the fact that the...
7 Αυγ 2024 · 1984: Mobile phone In today’s world, many of us think our mobile phones are as necessary as the air we breathe. We use them for everything, particularly since the advent of smartphones.
Born: Edinburgh, Scotland, 3 April 1847. Died: Baddeck, Nova Scotia, 2 August 1922. "Mr. Watson, come here, I want you". These words, pronounced by Alexander Graham Bell on 10 March 1876, in Boston, United States, formed the first intelligible sentence to be transmitted over the telephone.
In 1998 Iridium launched its worldwide “canopy” of 64 satellites and rolled out the first truly handheld satellite terminal. Slightly smaller than the early “bag” cellular phone, the Iridium handheld satellite phone would again revolutionize personal portable satellite communications.
In 1960, America launched Echo 1 into the atmosphere as the first step into satellite communication technology. By today’s standards, Echo 1 seems rather rudimentary — it was a balloon carrying what amounted to a huge mirror — but it was supremely effective at relaying information from one point on the globe to another. Written by Steve Manley.
