MATH & SCIENCE
'(<a href="http://www.j-archive.com/media/2004-11-06_DJ_05.jpg">Cheryl of the Clue Crew demonstrates with a strip of paper from the top secret <i>Jeopardy!</i> labs.</a>)  The <a href="http://www.j-archive.com/media/2004-11-06_DJ_05a.jpg" target="_blank">Mobius strip</a> is used in this field, the study of properties that don't change when a shape bends or twists'
topology