Sphereland: A Fantasy about Curved Spaces and an Expanding Universe

able Agatha Amazons angles animals answer asked called Cinderella circle Circleland convinced course cube curved dangerous direction discovered distance Dodecagon dream entire Equilateral existence expanding Expanding Universe explain fact fairy tale father flat Flatland forest fourth dimension fried dough girl grandfather grandson greater than 180 happened inhabitants inside Isaac Asimov Isosceles king Lineland Little Red Riding living longer look mathematics measured mongrel move never observation observational error over-cube Over-Sphere pedigreed dog Pentagons perhaps plane Polygons possible problem Puncto puppies pups question reason Red Riding Shoe replied result scientific shortest sides simply solution someone space Spaceland Sphere Sphereland Square straight line strange suddenly talk tell thought three dimensions three-dimensional creature three-dimensional space tion told took trees triangle trigonometric turned two-dimensional understand vertices voice walked wife woman women Year's Eve