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Does space have a shape?

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  • Battersby, Stephen. “Fold testament: what shape is the universe?” New Scientist. Dec. 7, 2006. what-shape-is-the-universe.html
  • Castellanos, Joel. “The Shape of Space.” NonEuclid.
  • “The Geometry of the Universe.” Astronomy 162. University of Tennessee.
  • “Gravitational Constant.” Eric Weinstein’s World of Physics.
  • Hawking, Stephen. “A Brief History of Time.” Bantam Books. New York. 1998.
  • Kurtus, Ron. “Newton’s Universal Gravity Equation.” School for Champions. Aug. 29, 2007. equation.htm
  • Luminet, Jean-Pierre. “The Shape of Space after WMAP data.” Brazilian Journal of Physics. Vol. 36, no. 1B. March, 2006.
  • “Torus.” Wolfram MathWorld.
  • “What is the structure of the universe?” The Official String Theory Web Site.