Era was to change. In former era, if our ancestries want to implement traveling, they used camel or horse. In that era, transportation is not advancing more such as this our time. But now, everything was to change. Our time or our era advances. Camel or horse is not to use again. If we want to go to any location, moreover to implement traveling, we are using our favorite car. Moreover, this more to easy and simple. Moreover, if our ancestries want to detect any direction, they used chart. In the coming days, especially after detected compass, that is an instrument with a magnetic needle that indicates direction, they more to choose and use the compass than to use chart, although somebody consistent to use both of them. In this era advances, usage for chart and compass to make easier for journey with car is start to relinquished. The owners for car more to choose and use the new instruments highly technical and complex. This new instruments is named GPS. GPS (Global Positioning Sy...
In the context of spaceflight, a satellite is an object which has been placed into orbit by human endeavour. Such objects are sometimes called artificial 97 W satellites to distinguish them from natural satellites such as the Moon....