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What else can I help you with?
Was sputnik a communications satellite?
Not as we know them today. Sputnik 1 sent a radio beep, but that was about it. It couldn't relay information as current communications satellites do.
How many satellites are in use as of today?
13,000
Are satellites good or bad?
{| |- | Satellites are neither good nor bad. How they are used can be good or bad. While it is considered good to use their photographs to predict weather patterns, using them to spy on other countries is not considered good, though perhaps necessary. They are critical in today's world in providing communications services throughout the world. |}
The oldest and still most frequently used network communications services are print services?
There are two network communications service that are still in used today and they are considered the oldest. The two services are the job submission and terminal access.
Does Mercury have ant natural satellites?
None are known as of today.
How many communication satellites orbit the earth today?
1000, Min
Solar flare supposed to hit today?
Solar flares are bursts of energy from the Sun that can disrupt technology and communications on Earth. If a solar flare is predicted to hit today, it is important to be aware of any potential impacts on GPS systems, satellites, and power grids. It's recommended to stay updated on any alerts or warnings from official sources.
Name some artificial satellites which are used for different purpose?
The first man-made satellite was Sputnik, launched into orbit in 1957 by the Soviet Union. The first American satellite was Explorer, launched the following year. The oldest satellite still in orbit is Vanguard, launched in 1958 by the US. There are now thousands of satellites currently in orbit, including communications satellites, GPS satellites, and the International Space Station. if you would like to see a real-time 3-D plot of satellites now in orbit, check out the JTRACK 3D web site from NASA.
What US naval communications systems were used during the Vietnam War?
Wireless (Morse-Code) and standard radio communications. Satellites existed, and as with computers today, those items were limited to military usage. Civilians only received access to computers (on line/web sites/e-mail/etc) during the Clinton administration in the 1990's. During the Vietnam War, U-2 and SR-71 Spyplanes were still needed for military operations; those two aircraft have been phased out by today's hi-tech satellites/computers. The U-2 was brought back into service for temporary duty, for basically the same reason Ford and Pontiac have remarketed their Ford Mustangs and Pontiac GTO's, "Nostalgia." They wanted to bring back the SR-71 Blackbird too, but the cost was too prohibitive.
When did Arthur C. Clark first begin working on the invention of the satellite?
Clarke wasn't an engineer, he didn't actually sit down, design, and build a satellite. Instead, he was a scientist and science fiction author, who wrote visionary works from the 1940's and on. It was he who first wrote about the idea of using manned space stations as television relay studios for global broadcast around the world. He rightly claimed the value of placing any such relay devices in a "geostationary orbit", one that stays fixed above a set point over the Earth's equator. Placing three of these stations equidistant around the equator would allow nearly total global coverage, nearly up to the poles. Satellite companies later took his ideas and actually designed and built the satellites to do the work he first envisioned. He first wrote about this around 1945. The first actual communications satellites went up in the 1960's. However, Clarke's vision of what a communications satellite would look like was vastly different from today's reality. His vision was restricted by the fact that at that time, the transistor was not yet invented. Electronic equipment used vacuum tubes requiring enormous power supplies. Such equipment was notoriously unreliable with MTBF (mean time between failure) measured in only hundreds of hours and would require constant repair & maintenance. He suggested that a communications satellite would be very large, perhaps as big as medium sized office block, and would house a significant technical staff who would live on the satellite. It would probably have to be constructed in space and boosted into the geosynchronous orbit when completed. Today's communications satellites are generally just a few metres in length and width and weigh just a few tons. Their electronics are based on VLSI (very large scale integration) that allows millions of transistors on a microchip, and giving an MTBF measured in hundreds of thousands of hours.
What are uses of amateur radio?
Amateur radio is useful for: 1. Having fun talking to other hams around the world, or simply in your own town. 2. Keeping emotionally healthy. (Astronauts, most of whom are hams, talking to us hams on the ground.) 3. Passing emergency traffic across the land. 4. Providing communications between soldiers, sailors, and fliers from where they are stationed to back home. 5. Developing new equipment, concepts, methods, and modes of communications. Many of the radio technology today is founded in work done by hams. 6. Providing emergency communications service for disasters and other local disasters. 7. Providing for long-distance ham-to-ham communications by building, launching, and maintaining a number of Earth-orbiting satellites, like OSCAR (Orbiting Satellite Carrying Amateur Radio) and AMSAT.
Do satellites have satellites?
Satellite is probably the most useful invention since the wheel. Satellites have the capability to let you talk with someone across the nation or let you close a business deal through video communication. Almost everything today is heading towards the use of satellites, such as telephones. At&t has used this communications satellite (top right) ever since the late 1950s. TVS and radios are also turning to the use of satellites. RCA and Sony have released satellite dishes for Radio and Television services. New technology also allows the military to use satellites as a weapon. The new ION cannon is a satellite that can shoot a particle beam anywhere on earth and create an earthquake. They can also use it's capability for imaging enhancement, which allows you to zoom in on someone's nose hairs all the way from space
