Mathematician Richard Evan Schwartz discovered how to make an origami torus with the least folding possible. The tent-shaped ...

Just as a terrestrial globe cannot be flattened without distorting the distances, it seemed impossible to visualize abstract mathematical objects called flat tori in ordinary three-dimensional space.

Imagine that you want to know the most efficient way to make a torus—a doughnut-shaped mathematical object—from origami paper. But this torus, which is a surface, looks drastically different than the ...

Most people wouldn't think that it would take rigorous mathematical proof to show how many folds it takes to make a donut shape out of paper. Yet, no one could quite figure it out until recently.