mungkiman Posted April 4, 2010 Share Posted April 4, 2010 Check this out: http://www.youtube.com/watch?v=me5Zzm2TXh4 Quote Link to comment Share on other sites More sharing options...
seti Posted April 4, 2010 Share Posted April 4, 2010 Crazy. You can get 2oz for $20. Quote Link to comment Share on other sites More sharing options...
mungkiman Posted April 4, 2010 Author Share Posted April 4, 2010 More "crazy": Looks like a fairly specific electromagnet. Reminds me of how sunflower seed heads grow. Quote Link to comment Share on other sites More sharing options...
filmboydoug Posted April 5, 2010 Share Posted April 5, 2010 I hope that stuff doesn't turn into a terminator. Quote Link to comment Share on other sites More sharing options...
Seadog Posted April 5, 2010 Share Posted April 5, 2010 Ferrofluids have been used for many years in ferrofluidic seals used to seal rotary feedthroughs in high vacuum systems. A magnetic field shapes the ferrofluid into a liquid o-ring that provides a hermetic seal between the moving components. Quote Link to comment Share on other sites More sharing options...
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