My piano-hinged dissection models ar Renaissance Banff
Piano-Hinged Dissections: Time to Fold, by Greg N. Frederickson:

On August 1, 2005, I gave an invited talk, "The Manifold Beauty of Piano-hinged Dissections", at Renaissance Banff: Mathematics, Music, Art, Culture, in Banff, Alberta, Canada. Although I had included lots of short video clips in my presentation, I thought that it would be fun to bring along a selection of some of my wooden models for demonstration. I left these on display on a table in the exhibition room, and stopped by every once in a while to encourage participants to "get the feel" of my models. Carlo Sequin took the following photos of some of my models.

Above on the left is a W-pentomino folded up into a square. On the right is a Greek Cross folded up into a square.

Above are the same figures as before, but folded halfway between the figures.

Finally, is the W-pentomino on the left above, but Carlo didn't get the Greek Cross on the right.


Photos courtesy of Carlo Sequin. All else is copyright 2005, Greg N. Frederickson.
Permission is granted to any purchaser of Piano-Hinged Dissections: Time to Fold
to print out a copy of this page for his or her own personal use.

Last updated August 15, 2005.