Wheels in Flatland This latest work pioneers the investigation of constant-width shapes in any dimension, but designing wheels in two or three dimensions is itself not a new problem.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

The study investigated the strategies that 7- to 12-year-old children spontaneously apply to the solution of novel combinatorial problems. The children were individually administered a set of six ...

Geometric problem solving - Higher Geometric problems can be solved using the rules for adding and subtracting vectors and multiplying vectors by a scalar .

So when you refer to vectors by scalar components you have to give the coordinate system too. Dealing with vectors in three dimensions is more complicated. In the component representation, there are ...

In this way, they were finally able to prove the Kakeya conjecture in three spatial dimensions, showing that the volume covered by the needle is always three-dimensional.

Geometric problem solving - Higher Geometric problems can be solved using the rules for adding and subtracting vectors and multiplying vectors by a scalar .