Static electricity tube, ca. 1747
Photo by Peter Harholdt, 2004
Click to Enlarge

Photo by Peter Harholdt, 2004

  • Overview
  • Description
  • Further Information
Blown glass; L. 30 1/2 in. (77.5 cm), Diam. 2 in. (5.1 cm)
Frankliniana Collection, The Franklin Institute, Inc. (Philadelphia, Pa.), 1492
The generation of static electricity through friction is now a commonplace experience, but Franklin's experiments with these glass tubes led him to the theory that electricity is transferred rather than created; and to the use of the terms "negative" and "positive," and "plus" and "minus" to describe the process.
Included in BF300 Exhibit. Terms of Use Credits