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Take in an MIT lecture demo, for free online
This is a really cool demonstration. It illustrates some specific physical principles, and the general approach to understanding phenomena that characterizes scientists, engineers, and technologists. The subject is levitation of an electrically excited coil above a conductive ground plane.
http://mfile.akamai.com/7870/rm/mits...11.7.1-220k.rm
Oh, and the fried egg at the end is very entertaining! 
__________________
Richard Wallace
Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
 since 2003
I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)
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Torment us no longer, Oh most great and knowledgable Dave. We savor your every utterance. - Gary Dillard [more] 
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