to videos, mathematical and otherwise

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

  • Koch Curve -- fractal Zoom 3D.

  • Moebius transformations revealed

  • Not knot part 1 and part 2.

  • How to Turn a Sphere Inside Out

  • Optical Effects of Special Relativity.

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