A team of artists and mathematicians has just created a non-Euclidean virtual-reality universe where the usual rules of geometry and physics don't apply.

Schweikart states his hypothesis very clearly, and explains that Euclidean geometry is a special case of a more general geometry.

THE philosopher Kant declared that Euclidean geometry was inherent in the human mind and expressed the truth about space. We now recognize that non-Euclidean geometry is equally valid as an ...