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Performing Gilbert's Version of the |
(This is an attempt to recreate Glbert's experiment on induced magnetism. It was later superseded by a more effective and elegant version, here.)
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Hold the nail still until the hanging wire-bars stop moving and are a short distance apart (a few millimeters or 1/8"). Then carry them to hang above the pole of the magnet (see drawing). Gently lower them towards the magnet, and if all goes well, you should see them move apart to about 2-3 times the distance. It is not a large effect and, contrary to Gilbert's illustration above, the wire-bars stay parallel, they do not form an angle. When the wire-bars are removed, they slowly move together again and the experiment can be repeated Back to Experiment on Induced Magnetism Next Stop: Magnetism from Gilbert to 1820 Back to the Master List |
Author and Curator: Dr. David P. Stern
Mail to Dr.Stern: earthmag("at" symbol)phy6.org
Last updated 25 November 2001