http://en.wikipedia.org/wiki/August_Ferdinand_Mobius
http://www.encyclopedia.com/doc/1G2-3407500199.html
_AlgTop6c: Non-orientable surfaces--the Mobius band (cont.)
https://www.youtube.com/watch?v=kVwwhThrCaI&feature=fvsr
http://en.wikipedia.org/wiki/August_Ferdinand_Mobius
http://www.encyclopedia.com/doc/1G2-3407500199.html
_AlgTop6c: Non-orientable surfaces--the Mobius band (cont.)
https://www.youtube.com/watch?v=kVwwhThrCaI&feature=fvsr