|MadSci Network: Engineering|
The other night I was watching "NOVA". They were talking about bullet trains and their magnetic suspension systems. At one point I recall a man in a lab coat turning on a motor which had an aluminum disc attached. To demonstrate what I'm asking about, he had a magnet on the end of a rod which he dropped toward the disk. To my surprise, the magnet bounced like it would have if it were aligned in a positive to positive or negative to negative fashion with another magnet. Why didn't I learn about this in grade school? Why don't we see this property demonstrated in other areas of technology? Wow!!!
Re: At what rate of passing will Al reflect a magnets field back upon itself?
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