Hyperbolic space
This is a model of hyperbolic space (7 triangles around a vertex). It’s an open problem of how far you can keep expanding your structure this way (possibly infinitely far, … Continue reading Hyperbolic space
Tag: geometry
Alternating series, a crafty solution.
Simon learned this from an alternating series visualization by Think Twice.
Area of a dodecagon without trigonometry
Simon learned this from a visual mathematics video by Think Twice.
Vanishing Letters
Simon’s way to celebrate Helloween: a little demo about how red marker reflects red LED light and becomes invisible. A nice trick in the dark! We also had so much … Continue reading Vanishing Letters
Why the Golden Ratio and not -1/the Golden Ratio?
Take any real number and call it x. Then plug it into the equation f(x) = 1 + 1/x and keep doing it many times in a row, plugging the … Continue reading Why the Golden Ratio and not -1/the Golden Ratio?
Triangular, Square, Pentagonal, Hexagonal Numbers
I asked Simon to show me how he’d come up with the formulae:
More examples of Simon’s chat contributions on math and coding
Simon is always extremely active in the discussions about the current projects made by/ lectures given by NYU’s Asdociate Professor Daniel Shiffman during his live sessions on the Coding Train … Continue reading More examples of Simon’s chat contributions on math and coding
Shaky Polyhedra
Simon has been studying various polyhedra and programming them in Wolfram Mathematica. He asked me to help him build one of the many “shaky polyhedra” from paper. The main characteristic … Continue reading Shaky Polyhedra
Physics Experiments: Making Holes in Soap Membrane
This demo is inspired by a recent video on Steve Mould’s channel. It’s about creating a movable hole in soap film with a loop of cotton thread (the photo shows … Continue reading Physics Experiments: Making Holes in Soap Membrane
Geeks out of the box 