Over 120 years ago, Henry Ernest Dudeney posed the famous dissection problem of transforming a triangle into a square by cutting it into as few pieces as possible. In a new study, researchers have ...

When many Americans hear the words “cardiovascular emergency,” they think of a heart attack or stroke. Almost no one thinks of an aortic dissection, even though recognizing this condition quickly can ...

Dudeney’s original solution for transforming an equilateral triangle into a perfect square through dissection involves only four pieces, a solution that has now been proved to be the optimal solution.