London dentist uncovers geometric code in Leonardo da Vinci’s Vitruvian Man

Rory Mac Sweeney, a London‑based dentist and independent researcher, has identified a previously overlooked geometric clue in Leonardo da Vinci’s Vitruvian Man. In his peer‑reviewed study published in the Journal of Mathematics and the Arts, he argues that Leonardo’s note about “the space between the legs will be an equilateral triangle” refers to a literal triangle that aligns with Bonwill’s equilateral triangle in mandibular anatomy. Mac Sweeney explains that Leonardo offset the centers of the circle (at the navel) and the square (at the groin), allowing the figure to fit both shapes and revealing the hidden triangle.

Separately, author Kristina Wright reflects on Leonardo’s legacy, outlining five life lessons drawn from his notebooks, emphasizing continuous learning, curiosity, and the importance of understanding before judging. Wright’s piece highlights how Leonardo’s interdisciplinary approach to art and science continues to inspire modern readers.