What? A magnetohydrodynamic pump...the caterpillar drive from Hunt Red October??!!
September 17, 2011 3:27 AM
by timothy
Pumping Fluid With No Moving Parts
RogerRoast writes "In a study published in Physical Review B (abstract; full version is paywalled), researchers demonstrate for the first time an approach that allows ferrofluids to be pumped by magnetic fields alone. The invention could lead to new applications for this mysterious material. Though numerous industrial, commercial, and biomedical applications for ferrofluids have since been created, the original goal — to pump liquids with no machinery — remained elusive, until now. The ferrohydrodynamic pump method works when electrodes wound around a pipe force magnetic nanoparticles within the ferrofluids to rotate at varying speeds. Those particles closest to the electrodes spin faster, and it is this spatial variation in rotation speed that propels the ferrofluid forward."
Read more of this story at Slashdot.
technology
Dr. Art Trembanis
Associate Professor
CSHEL
109 Penny Hall
Department of Geological Sciences
The College of Earth, Ocean, and Environment
University of Delaware
Newark DE 19716
302-831-2498
"Education is not the filling of a pot, but the lighting of a fire." -W. B. Yeats
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