Satellites are sent into space to collect information about the earth, for communication purposes and many other reasons. We are able to see climate changes before they occur because of the data gathered by these satellites. They are very useful to us. This video will explain how these satellites work.
Channels: Physics (General)
Tags: How Do Satellites Work
Uploaded by: season_31 ( Send Message ) on 13-12-2011.
Duration: 1m 20s