Hypersphere

• Tantalising evidence hints Universe is finite
  
  New Scientist article about the latest research on the shape of the Universe.
  
  
• Big Bang glow hints at funnel-shaped Universe
  
  According to observations the Universe is stretched out into a long funnel
  

• Flatland

  This is a full-text electronic version of Flatland, the famous book of life in many dimensions, written by Edwin Abbott.
  

• Is Space Finite?

  An article from Scientific American (4/99) about how the Universe may be endless, depending on how many dimensions it has.
  

• Hyperspace Polytype Slicer

  This is a clever java applet which lets you explore multi-dimensional figures.?
  

• Does Space Have More Than 3 Dimensions?

  An article by Sten Odenwald which explores different views on a multi-dimensional cosmos, with lots of background information and helpful insight.
  

• Hyperspace Structures: Exploring The Fourth Dimension

  This page has information and illustrations of the hypercube and the hypertorus, and animated clips showing how they rotate.?
  

• Michio Kaku, Articles

  A series of articles (links in the left margin) on the theory of everything, wormholes, hyperspace, string theory etc written by Michio Kaku.