Introduction to the floating squares demonstration shows the preparation of the square of paper rubbed with graphite on one side.
Graphite (from a pencil lead) is applied to one side of an index card and a square is cut from the card.
Credits:
- Design and Demonstration
- David Whisnant Wofford College, Spartanburg SC 29303
- Video
- Jerrold J. Jacobsen University of Wisconsin - Madison, Madison, WI 53706
- Text
- David Whisnant Wofford College, Spartanburg SC 29303
- Jerrold J. Jacobsen University of Wisconsin - Madison, Madison, WI 53706