Spider and Fly
المؤلف:
Franklin Potter and Christopher Jargodzki
المصدر:
Mad about Modern Physics
الجزء والصفحة:
p 20
7-10-2016
618
Spider and Fly
On a plane the shortest distance between two points is a straight line. Suppose a spider sits on a cube and wants to catch a fly sitting on the opposite face. How would you determine the path of shortest distance for the spider to crawl on the surface to catch the fly?
Answer
To find the shortest path between any two points on a cube not on the same face, one convenient method is to lay out the six faces of the cube on a plane
and draw the straight-line path. Of course, all parts of the path must be on the faces, and the appropriate faces sharing a common edge must retain their relative positions and orientations.
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