This is one of my favorite demos. Easy to do and doesn't really require any equipment. The basic idea is that you support a meter stick horizontally with two fingers. Slide your fingers in and they ...

Description: A meter stick is supported on the two forefingers. The fingers are moved slowly together and end up at the center of the stick. Start with the arms apart and move them together to end up ...

Berkeley Lab researchers have developed a peel-and-stick electricity meter which allows individual circuits in the home and industry to be accurately monitored. It is an alternative to current ...