Satelites

• Geosynchronous = a satalite that orbits the Earth in the same time as the Earth rotates. Time to orbit = 24 hours
• Geosynchronous can go in any direction or any angle across the Earth
• Geostationary =

  • a type of geosynchronous satellite
  • travels around the equator
  • takes 24 hours to orbit
  • travels the same direction as the Earth spins.
  • in the same position every second of the day
• geosynchronous (1) vs geostationery (2):

  • 2 is only above the equator
  • 1 can orbit anywhere - above the pole
  • 1 can travel against the Earth's rotation
• Geostationary = used for phones + satellite tv
• Geosynchronous = weather satellites (or spy satellites)
• Fibre optic cables =clear fibre glass cable, buried underground, connecting home 2 internet = used for the internet
• fibre optic cables are faster at sending messages than satellites
• Internet only travels through the inside core

  
• cable (1) vs satellite (2):

  • 1 sends messages faster
  • You can send bigger and more messages on 1 than 2
  • 1 are cheaper to design + fix
  • 1 are easy to fix + repair
  • BUT 1 are easy to hack into; 2 more secure