Now, more than 122 years after it was first proposed, Kamata and two other mathematicians have finally proved that a solution ...

You can tell spring has officially begun in the Northern Hemisphere just by looking at the stars. Here's how to easily spot ...

You can tell spring has officially begun in the Northern Hemisphere just by looking at the stars. Here's how to easily spot the Spring Triangle without a telescope.

This large, nearly equilateral triangle is composed of three of the ... On Feb. 24, Mars will arrive at its second stationary point in its retrograde loop and will begin turning around and ...

This event signals the start of Spring in the Northern Hemisphere and Autumn in the Southern Hemisphere, a transition that also manifests in our evening skies as winter constellations start to vanish.

Dudeney’s original solution for transforming an equilateral triangle into a perfect square ... and puzzles from the point of view of theoretical computer science. Tonan Kamata is mainly ...

In 1907, the English author and mathematician Henry Ernest Dudeney posed a puzzle: Can any equilateral triangle be cut into as few pieces as possible that will fit together to form a perfect square?