There are a few reasons why I did my science fair project on diamagnetism. The purpose of my experiment was to attempt to levitate two diamagnetic materials above an array of magnets. I have seen many videos demonstrating diamagnetic levitation and wanted to find out if it was possible. I also saw several videos about diamagnetic levitation and wanted to see if it was actually possible and wanted to make my own project on a topic I wasn't familiar with. I decided to use pyrolytic graphite and bismuth because both are known for their diamagnetic properties. The discovery of magnets begins with the elderly Cretan shepherd named Magnes around 4,000 years ago. It is said that while he was grazing his sheep in an area of Greece called Magnesia, he suddenly discovered that the metal tip of his staff and the nails of his shoes had remained firmly stuck to the ground. He dug into the earth and discovered magnets containing magnetite. The rock magnetite then got its name from Magnes or Magnesia. The Greek philosopher Thales also mentioned the magnetic properties of lodestones around 500 BC. The history of magnetic levitation begins around 1842 when a British mathematician named Samuel Earnshaw demonstrated that there was no possible way to levitate a magnet using only other fixed magnets in the his theory. called Earnshaw's Theorem. His theory, however, does not apply to diamagnetic materials. So with the addition of diamagnetic materials, however, levitation is possible. His studies showed that while the hanging magnet was stable vertically, it was not stable horizontally and fell to one side. All materials are diamagnetic, although most of the time they exhibit this property so weakly that they are...... half of the paper... materials are possible and can be more diamagnetic than others. I really enjoyed doing this experiment and hope to be able to apply my new knowledge in my everyday life. Bibliography Comstock, R. Lawrence. Introduction to magnetism and magnetic recording. New York: Wiley, 1999. Print "Diamagnetism." Diamagnetism. Np, nd Web. 04 December 2013.Gibbs, Philip. "Is magnetic levitation possible?" Magnetic levitation. Np, March 1997. Web. 4 December 2013. "Magnetism and Earnshaw's theorem." Magnetism and Earnshaw's theorem. MathPages and Web. December 04, 2013.Watkins, Thayer. "Diamagnetism". Diamagnetism. San Jose State University, nd Web. 04 December. 2013.
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