Museum of Science
Museum of Science and Industry Chicago: Online Science: Drop Eggs Into Cups
Step-by-step illustrated instructions showing how to drop four eggs into four cups without touching them. Demonstrates the concept of inertia according to Newton's first law of motion.
Art Cyclopedia
Artcyclopedia: John Singleton Copely
This site lists museums, galleries, image archives, and web sites online which exhibit John Singleton Copely's art. A few periodical articles are also included.
Museum of Science
Museum of Science and Industry, Chicago: Activities: Make and Fly a Helicopter
Print and cut out the template for the helicopter. Then experiment with adding and subtracting weight, or changing the shape of the copter or the blades to see what makes it fly best.