Hogan via compass
What is the smallest number of balloons you need to make a cube (with exactly one balloon segment per edge?
Tile Trouble/Golden Ratio
Link to all Sierpinski related files is
Falling cat and Rubic’s cube
If something is spinning it will keep spinning (unless a force acts on it.) If something is not spinning it won’t start spinning (unless a force acts on it.) So how does a cat that starts falling without spinning land on its feet?
Hint, do first, do second, undo first, undo second. This pattern is a nice way to make special moves on a Rubic’s cube. Try to solve one face of a Rubic’s cube. Make a pattern with a 5 x 5 grid of Rubic’s cubes. Here is the camp cube Shrek.