Other
Institute of Physics: Water Jet Through Rings
Investigate a stream of water following a parabolic path.
Physics Classroom
The Physics Classroom: Vectors and Projectiles: The Plane and the Package
Consider a plane moving with a constant speed at an elevated height above the Earth's surface. In the course of its flight, the plane drops a package from its luggage compartment. This animation depicts such a situation. The path of the...
University of California
University of California Berkeley: Galileo Galilei
This site from the University of California, Berkeley contains information about the life of Galileo Galilei along with detailed information about his work.