reminds me of these symmetric 2D P3 lizards:
http://www.worldofescher.com/store/Z51.html
I bought the RGB-coloured set/puzzle after visiting an Escher
exhibition and sometimes use them in crystallography/symmetry teaching.
Nice to make the students assemble them and then decide on the
symmetry operator, unit cell and asymmetric unit.
Quoting Phoebe Rice:
> Hi all,
> For those who teach xtallography - we found some plastic turtles
> that can be snapped together in an amazing variety of space groups.
> Worked well in a workshop for our students, so I thought I'd share
> the shopping tip. They're called Reptangles, and we got them from
> Amazon.
>
> http://www.amazon.com/Fat-Brain-Toys-FA042-1-Reptangles/dp/B00392NSQ4
>
> Have fun!
>
> Phoebe
>
> =====================================
> Phoebe A. Rice
> Dept. of Biochemistry & Molecular Biology
> The University of Chicago
> phone 773 834 1723
> http://bmb.bsd.uchicago.edu/Faculty_and_Research/01_Faculty/01_Faculty_Alphabetically.php?faculty_id=123
> http://www.rsc.org/shop/books/2008/9780854042722.asp
>
Mark J van Raaij
Laboratorio M-4
Dpto de Estructura de Macromoléculas
Centro Nacional de BiotecnologĂa - CSIC
c/Darwin 3, Campus Cantoblanco
28049 Madrid
tel. 91 585 4616
email: [log in to unmask]
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