File:Magnetohydrodynamic Flow Experiment - Simulated Blood Flow.webm

English: Magnetohydrodynamic Flow Experiment - How Blood may be circulated without moving parts. A Magnetohydrodynamic Flow Experiment conducted in my basement laboratory last year (September 2011). Three Grade N35 Neodymium magnets (stacked one upon the other) are placed underneath a plastic container. Each magnet is 1.8 cm in diameter and 0.3 cm in thickness for a calculated total surface field (on axis) of 4,273 Gauss. The container is filled with 250 mL of 0.9% normal saline solution to simulate the salinity of blood, and the normal saline solution is coloured red to show up in the video. Blue food dye is added to highlight motion, and a nine volt DC electric field is placed across two aluminum sheet metal electrodes with a width of 10 cm spaced 10 centimeters apart and immersed in the normal saline solution. A switch is thrown to activate the current, and flow is achieved at once as shown by the motion of the blue dye, according to Lenz's Law. This demonstrates that the flow of blood is possible without using mechanical parts found in a conventional Heart Assist Device, or in possible future nanomedical devices aiding the microcirculation of tissue or organs.