Code Number: 6J11.31

Demo Title: Skywriter

Condition: Good

Principle: Persistence of Vision

Area of Study: Optics, Human Biology

Equipment:

Skyliner tm toy,

Procedure:

See also: 10C10.50 in Chemistry and Physics of Everyday Experience

Choose the desired phrase on the Skyliner unit and twirl in a darkened room.

The Vectron, 10C10.50, also has a LED array that will spell phrases in the same manner as the Skyliner.

References:

D. A. Wardle, "The Time Delay in Human Vision", TPT, Vol. 36, #7, Oct. 1998, p. 442.
Gerard Lietz, Anthony Behof, Marshall Ellenstein, "Illuminating Standing Waves", TPT, Vol. 24, # 7, Oct. 1986, p. 449.

Disclaimer

These demonstrations are provided only for illustrative use by persons affiliated with The University of Iowa and only under the direction of a trained instructor or physicist. The University of Iowa is not responsible for demonstrations performed by those using their own equipment or who choose to use this reference material for their own purpose. The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources. Performing all or any portion of any of these demonstrations, with or without revisions not depicted here entails inherent risks. These risks include, without limitation, bodily injury (and possibly death), including risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition; and property loss or damage. Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.

Instructional Resources and Lecture Demonstrations

6J11.31 - Skywriter

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