Interactivity from Encarta
Gravitational Forces Gravitational Forces
Frames of Reference Frames of Reference
 

Frames of Reference

A situation can appear different when viewed from different frames of reference. Try to imagine how an observer's perceptions could change from frame to frame in this illustration.
© Microsoft Corporation. All Rights Reserved.
Appears in these articles:
Gravitation; Einstein, Albert; Physics; Relativity
* Exclusively for MSN Encarta Premium Subscribers. Join Now
Advertisement

Englishtown: Learn English online
Upgrade your Encarta experience
Encarta RSS Feeds
© 2008 Microsoft