BBC5 年
Artificial satellites and orbital motion
Gravity is the force needed to maintain the orbit ... polar orbits; geostationary orbits. Polar orbits take the satellites over the Earth’s poles. The satellites travel very close to the Earth ...
BBC2 年
Artificial satellites and orbital motion
Gravity is the force needed to maintain the orbit ... polar orbits; geostationary orbits. Polar orbits take the satellites over the Earth’s poles. The satellites travel very close to the Earth ...