Artificial Satellites

According to Oberright, John E. "Satellite, Artificial." World Book Online Reference Center. 2004. World Book, Inc. http://www.nasa.gov/worldbook/artificial_satellites_worldbook.html about 3000 useful satellites launched by the US and 40 other countries orbit Earth along with about 6000 "pieces of space junk." this guy doesn't kno what he's talkin about!!!! Um, are you sure? I need to know this for science ,dang it! There is actually 15,000 American satelites in orbit right now!! O! I'm smart! o burn.

Yes, busbars can be used on satellites just like it is used for ground use. But, it should be space qualified..

Endeavour

Geography has changed to reflect better technology of our time. and because it is easyer than to go up in space in a rocket to send up a satelite

UV (Ultra- Violet)

The same way they prevent the moon from falling to earth . . . give it enough horizontal speed

so that by the time gravity has pulled it down 10 feet, the surface of the earth has curved down

10 feet, so it's still just as far from the surface as it was originally.

Perform this maneuver enough times, and the moon "falls" through a complete circle around

the earth, without ever getting any closer to it.

And scientists have nothing to do with it.

well space is like a vacuum you cant escape it and sound wave do not travel in space but space isn't literally a vacuum so they move by rockets and the gravity of earth

Mainly for observation of enemy forces, navigation for soldiers on the field and communications.

If they are in the atmosphere (low earth orbit), satellites are in the ionosphere. If they are in higher orbits, satellites are considered to be outside the atmosphere.

It is 136.17 miles according ti MapQuest.

Yes you can it is labelled as the 'ISS' when satellite mode is turned on. I believe it will be even easier to identify it in the new version which is out soon.

3.6 Billion years ago there was an era known as the late heacy bombardment.

Then, 3.6 Billion years ago, the planets formed much closer to the Sun. Orbits of the planets drifted for hundreds of millions of years. Until the two 'super planets' of the Solar System; Jupiter and Saturn met. The two planets fell into a resonance pattern of their own.(Their gravitational forces pulled each other and other things around.) Once every cycle they met in the same spot. The Orbital Resonance of the planets was so powerful it managed to push another planet, Neptune. Neptune went flying into the wall of comets surrounding the solar system. For one hundred million years, the Solar System became a shooting ground with comets ploughing through the solar system creating craters on planets. This period was known as the Late Heavy Bombardment.

This is what many of the craters we see on our moon and other planets were formed from. It shaped the moon we know today.

A gyroscope is a device for measuring or maintaining orientation, based on the principles of conservation of angular momentum. In essence, a mechanical gyroscope is a spinning wheel or disk whose axle is free to take any orientation. Although this orientation does not remain fixed, it changes in response to an external torque much less and in a different direction than it would without the large angular momentum associated with the disk's high rate of spin and moment of inertia. Since external torque is minimized by mounting the device in gimbals, its orientation remains nearly fixed, regardless of any motion of the platform on which it is mounted...........Sanjay M. Parmar

A low Earth orbit (LEO) is an orbit around Earth as low as 100 miles and up to 1,240 miles close to the Earth's poles.

Sputnik means "fellow traveler" in Russian.

1-A satellite is like a radio antennae that sends out energy waves and helps connects to others.

2-It connects to the signal from space that gives you your tv signals sent by the tv station.

3-I don't really think there is a 3rd reason.

P.S sorry i couldn't come up with a 3rd reason :D

A satellite in a "polar" orbit goes north and south around the world. Depending on the satellite's altitude, it will take about 90 minutes to go around once. But because the Earth itself spins from West to East, every time the satellite comes back around, the Earth will have rotated underneath it, by 360 degrees divided by the orbital period in minutes; for a 90-minute orbit, about 23 degrees per orbit.

You can see how this would work if you take some string or ribbon, and wrap it top-to-bottom around a ball. Be sure to spin the ball slowly while wrapping it with the string.

That depends how close you are to the engines. The sound pressure diminishes with the distance r after the distance law 1/r. Every halving of the distance gives a 6 dB louder noise. 1 mile away it could be 170 dB SPL. Very close to the engines - as being in the very front seat of a rock concert - it will be more level.

wastage of power

It was significant because it was the first artificial satellite that reached an orbit, and it also started the space race between the U.S. and the U.S.S.R.; for example, first man on the moon wouldn't have happen if the Soviet Unions had not launched Sputnik I.

No. The speed of any orbiting body depends only on the energy of its orbit, meaning mainly its distance
from the central body.

When a Space Shuttle astronaut performs a 'space walk', and momentarily unhooks his feet from the
hull of the shuttle, he and the shuttle are both in earth orbit. The astronaut and the shuttle have the
same orbital speed, and they stay close together, even though the shuttle has somewhat more mass
than the astronaut has.

A Global Positioning satellite is one of several satellites that orbit the earth constantly broadcasting a signal the give their location. Collectively these satellites are called the Globle Positioning System or GPS. Global Positioning means the system is used to determine your position on the globe -- your latitude and longitude. GPS receivers can receive signals from these satellites and use them to calculate where on the earth the receiver (and thus the person with the receiver) is. Visit the links below for more information on GPS satellites.

Calipso is a famous shuttle built by the pussyheads.........hahahahha i have no idea what calipso is....lol Calipso is a famous shuttle built by the pussyheads.........hahahahha i have no idea what calipso is....lol

Not really.

If there was an observer between the moon and Earth during this mission, if they were orientated properly, they could have seen the Apollo 11 CSM and LM pass in front of the sun, but no one was there to see this.

The moon is in orbit around the Earth. The space craft simply went from low Earth orbit to a higher orbit that intersected the moon's orbit. At no time did they travel further than 260,000 miles. The sun is 93,000,000 from the Earth. There would be no reason for the Apollo 11 craft to "pass the sun" to get to the moon.

things like contents of atmosphere, heat, etc.