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Author(s): A. Thess, E. V. Votyakov, and Y. Kolesnikov<br/>We describe a noncontact technique for velocity measurement in electrically conducting fluids. The technique, which we term Lorentz force velocimetry (LFV), is based on exposing the fluid to a magnetic field and measuring the drag force acting upon the magnetic field lines. Two series of measurement...<br/><img src="http://prola.aps.org/graphics/free2read30x30.gif" width="30" height="30" alt="Free to Read"/><br/>[Phys. Rev. Lett. 96, 164501] Published Tue Apr 25, 2006