to videos, mathematical and otherwise

  • Dyscalculia (∃ 3 kinds of mathematician, those that can count and those that can't.)

  • Pi the ratio of the circumference of a circle to its diameter
  • Jobs in math (Abbott and Costello 7 x 13 = 28.)

  • Koch Curve -- fractal Zoom 3D.

  • Moebius transformations revealed

  • Not knot hyperbolic 3-manifolds

  • How to Turn a Sphere Inside Out

  • Optical Effects of Special Relativity.

  • Black Holes, Neutron Stars, White Dwarves, Space and Time.