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Daniel Wyllie Lacerda Rodrigues's video of truncated octahedra (2.2 MBytes),
April 2007.
Before obtaining a copy of my book,
Daniel Wyllie Lacerda Rodrigues (in Brazil) rediscovered the 9-piece hinged dissection
of two truncated octahedra to one that I mentioned
at the top of page 201.
He produced an earlier video with the same basic idea
back in June 2006, with his enthusiastic hamster running
around on a wheel in the background.
Now the hamster is gone, but the model is nicer,
with pieces in two colors,
which really set off the symmetry!
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Daniel Wyllie Lacerda Rodrigues's video of truncated ooctahedron to hexagonal prism to triangular prism,
November 2011.
In November 2011, Daniel Wyllie Lacerda Rodrigues (in Brazil)
alerted me to a video that he had shot of a 3-way hinged dissection
of a truncated ooctahedron to a hexagonal prism to a triangular prism.
The 18-piece dissection is very symmetrical and is derived from
Anton Hanegraaf's hinged dissection of a truncated ooctahedron to a hexagonal prism
as illustrated in Figure 20.4.
What a lovely extension!
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Walt van Ballegooijen's videos of his hinged linkage for a 2x1x1 rectangular solid to a cube:
first movie (4.6 MBytes)
and second movie (4.6 MBytes),
February 2008.
Walt van Ballegooijen (in the Netherlands) modified Anton Hanegraaf's hinged dissection of a 2x1x1 rectangular solid to a cube
to produce a remarkably symmetric hinged dissection,
as I discuss on
a page in my photo gallery.
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Robert Webb has a nifty video of his hinged linkage for a regular dodecahedron to a rhombic dodecahedron on his
Dodecahedron Shape-shifter webpage.
Actually, there is a hole in the rhombic dodecahedron in the shape of the tetrahedral stellation of the regular dodecahedron,
as Robert points out.
(Thanks to Joe Malkevitch for bringing Robert's webpage to my attention!)
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Dirk Huylebrouck has sent me links to two videos shot by his students at Sint Lucas (Brussels, Belgium)
that he uploaded to YouTube.
The videos are of models of twist-hinged benches that I had presented at
the Bridges Donostia conference in Spain in July 2007.
The links plus some general explanation is on
this page.
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The Elica Team has combined an animation of the swing-hinged dissection of an
equilateral triangle to a square with musical accompaniment
and eight Japanese haiku.
They call it "The Convertible House".
You can find a link here.
Thanks to Daniel Wyllie, Walt, and the students at Sint Lucas
for allowing me to post their movies.
They retain all rights to them.
Last updated November 14, 2011.