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13h
awarded  Popular Question
21h
revised Can we trap light in a polygonal room?
Style.
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revised Can we trap light in a polygonal room?
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answered Can we trap light in a polygonal room?
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awarded  Great Question
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awarded  ds.dynamical-systems
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answered Unit-Distance Polyhedra
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comment Lattice n-gons with ordered side lengths 1,2,3,…,n
Could you say something about how you searched for these (delightful) polygons?
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awarded  Nice Answer
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comment Can we trap light in a polygonal room?
@Wojowu: Just close it off with right angles; the rays never touches these new corners. But this is unsatisfactory, since the polygon has to be oriented so that the ray has an irrational slope w.r.t. the central square. (The software is telling me to stop with the comments.)
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comment Can we trap light in a polygonal room?
@Wojowu: I guess if you make a point-hole in the polygon connecting the segments in their construction, to let in the single ray, then it is possible (since the ray will never revisit the hole).
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comment Can we trap light in a polygonal room?
@Wojowu: Now it is clear I have not answered your question. Sorry!
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revised Can we trap light in a polygonal room?
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comment Can we trap light in a polygonal room?
@Wojowu: Sorry for the lack of details. I cannot access the Involve paper now either. Otherwise I'd post a drawing of their construction.
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revised Can we trap light in a polygonal room?
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answered Can we trap light in a polygonal room?
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comment Connection between cardiac equations and untangling knots?
@WillieWong: Thanks for your explanation!
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comment Alternative parallel paths
Explaining the example figure---the significance of the colors---would be a start toward responding to Stefan.
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revised Alternative parallel paths
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asked Connection between cardiac equations and untangling knots?