Tuesday, October 24, 2006
Tube quiz (17) Topologically equivalent
It's a well-known fact that the tube map distorts reality. All the lines on the map have been stretched and tweaked to appear simpler than they really are. For today's quiz I've stretched and tweaked each of the 12 lines a little more, as if they'd been drawn on a rubber sheet. Then I've shrunk them down, keeping all of the original intersections intact. Five lines have no connections or branches at all, but the other seven are a little more complicated. How many can you identify?
Here are the 12 lines you need to match up.
Have a guess which is which, then check your answers against those given in the comments box. How many did you get right?
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