Aaron Meyerowitz meyerowi@fau.eduI suppose the smaller rectangle is rotated 90 degrees. Here is a link to a kind of hokey book The Elements of Dynamic Symmetry By Jay Hambidge which has a picture.http://books.google.com/books?id=F4C6YelrRrEC&printsec=frontcover&dq=jay+hambidge&ei=bEqfSbnqGoLeyASrg5GMAg#PPA43,M1
I suppose the smaller rectangle is rotated 90 degrees. Here is a link to a kind of hokey book The Elements of Dynamic Symmetry By Jay Hambidge which has a picture.
http://books.google.com/books?id=F4C6YelrRrEC&printsec=frontcover&dq=jay+hambidge&ei=bEqfSbnqGoLeyASrg5GMAg#PPA43,M1