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.



  • Draw sparks with a wand connected to the VDG ground terminal.
  • To prevent shock, hold the wand to the dome when switching the VDG off.
  • Be careful not to scratch or dent the dome or wand.











         (persons with known heart conditions should not use this apparatus)
         (plug into dedicated outlet to avoid tripping circuit breaker)
         (keep VDG away from classroom computer and microphone)

  • Draw sparks with another sphere connected to the VDG ground terminal.















         (persons with known heart conditions should not use this apparatus)
         (plug into dedicated outlet to avoid tripping circuit breaker)
         (keep VDG away from smart cart, computers and microphones)

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