http://en.wikipedia.org/wiki/August_Ferdinand_Mobius
http://www.encyclopedia.com/doc/1G2-3407500199.html
_ August Ferdinand Möbius
https://youtu.be/3oRTT4886s8
_ August Ferdinand Mobius
https://youtu.be/bV_nh66TVKo
_ Modeling a Mobius Strip Pendant In Blender 2.73
https://youtu.be/s6Jqb4dIV9g
