It’s no wonder that farmers with fields in the plains surrounding Stonehenge, in southern England, face late-summer mornings with dread. On any given day at the height of the growing season, as many ...

The pieces form an equilateral triangle with an inscribed rectangle which transforms into a parallelogram with an inscribed square. This is a special case of Wheeler's model 4K (trapezoid into a ...

Editor’s Note: Published in 1959, this article comes from Martin Gardner’s legendary Scientific American column Mathematical Games. Read more classic Mathematical Games articles in our 2024 special ...

Knowledge of the heavens is a decisive factor in survival and for millennia humans have studied and recorded astronomical cycles. Lunar, solar and stellar calendrics were inscribed and painted on ...

A sigil is an inscribed or painted symbol considered to have magical powers. This magic sigil could win you a gift card for Tucker’s Ice Cream if you can solve the puzzle. The base is a Golden ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Leonardo Da Vinci’s Vitruvian Man has been puzzling scholars for centuries. Da Vinci, who was not only a famous artist but also an inventor, engineer, and scientist studying subjects like human ...

They can be arranged as an equilateral triangle or a rhombus .The pieces on one side have smaller plastic parts on them so that the equilateral triangle and the rhombus both appear to have an ...