199

July 18 – 199

Mathematica 10.1 A Calabi-Yau space is a mathematical construction that describes parts of nature that are too small to see with the human eye. It is named after E. Calabi who first studied them, and S. T. Yau. Calabi–Yau spaces are manifolds that satisfy the requirement of space for the six “unseen” spatial dimensions of string theory. From a script by Andrew J. Hanson.

134

May 14 -134

Curved Spaces- Seifert-Weber space. The Weber-Seifert dodecahedral space was one of the first-known examples of a hyperbolic 3-manifold and was discovered by German topologists H.Seifert & C Weber in 1933.