Web Accessibility - Legacy Page

This page has been identified as older than June 1, 2014. Per MSU's Web Accessibility agreement with the Office for Civil Rights, content that has not been updated since this date is considered "legacy" and does not need accessibility errors remediated.

If you make edits to this page and republish it, you will need to correct any accessibility errors that exist - all MSU web pages created or updated past June 1, 2014 are required to meet our current Web Accessibility standards. Visit our help center article on working with legacy web pages and content for more information.



  • LED lamps flash brightly when the coil they are connected to is pulled through the poles of a strong radar magnet.
  • Orient the mark on the handle with the N pole of the magnet, slowly insert the coil between the poles, then pull it out quickly.
  • CAUTION: LEDs emit UV light, stay back from the audience.
                       Keep magnet at least 1/2 m away from ALL other ferromagnetic materials.

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