PBS
Pbs: Nova: Infinite Secrets
Offers a look into the mind of Archimedes based on findings within newly discovered manuscript.
The Franklin Institute
Franklin Institute Online: Simple Machines
Information on all six simple machines, nicely presented with extra information available for all. Other sources available. Do "Try This Demonstration."
Alabama Learning Exchange
Alex: How to Make Something Simple, Hard
Students will have completed a unit of forces and motion prior to the current unit of study on simple machines (lever, inclined plane, screw, wedge, pulley, wheel and axle). Students will review the functions and examples of simple...