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site shows altitude and tracks flight path of airplanes.  Some neat possibilities for physics classes

Segment from the helicopter documentary "Straight Up!", showing power line maintenance being performed on live wires by a man outside a helicopter, using a type of Faraday cage. Great for shielding and faraday cages.  Wild.

J-Track 3D Satellite Tracking We hope you enjoy J-Track 3-D.  It should appear in its own window and begin loading a database of hundreds of satellites. What you will see is a plot in 3-dimensions showing the position of these satellites. If you are unable to view then a JAVA updagrade could be necessary. Be sure to try the "Satellite" pull-down menu to choose which satellite you wish to view. How to interact with JTrack-3D; it has its own menu items for View, Satellite, and Options:

Great video by Don Petit showing motion of pendulums and simple harmonic oscillators in orbit. 

From a Japanese TV show - a real life example of adding vectors and relative motion. The truck is moving at 100km/hr and a ball is shot backwards at 100 km/hr, resulting in it coming to a complete stop.