Ferrofluids, electromagnets, and some rare earth insanity.
Posted on March 24th, 2010 by Mobyseven
If you’ve come to my blog from the Young Australian Skeptics website, this will be something you’ve probably seen before — I posted it last year as soon as I completed it. For everyone else, this is too cool not to share. You may be wondering, “What exactly is ferrofluid?” Briefly, it’s a colloidal mixture [...]
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