A “hidden” triangle to Vitruvius’s man, Leonardo da Vinci’s iconic work on the human body, was discovered by a dentist from London.

“The triangle can be detected between man’s legs in the work and is not just a random shape,” says Dr. Rory Mac Sweeney, who published his discovery and study in Journal of Mathematics and the Arts.

The hidden equilateral triangle to the man of the Vitruvian Source: @Obert Mac Sweeney/Journal of Mathematics and the Arts

According to the dentist, this figure corresponds to a well -known modern anatomical feature that explains how human jaws work in the most efficient way, the so -called “Bonwill triangle”.

“An imaginary equilateral triangle,” hidden in common view “, in Leonardo’s notes could be an indication of the method of construction of Vitruvius, which laid the foundations for the analogue choice of the plan,” Dr. Swinni told Independent.

The use of such a triangle in the sketch of Vitruvius suggests that scientist Da Vinci understood the ideal design of the human body centuries before modern science.

Vitruvian man of Leonardo da Vinci

The Vitruvian man of Leonardo da Vinci, sketch of 1490

According to the study, the use of an equilateral triangle in the “Vitruvius man” design helps to create a particular ratio – 1.64 – between the size of the square and the circle in the famous work of art.

This ratio is almost identical to a “special design number”, the 1,633, which often occurs in nature for the construction of the most effective structures, such as the atomic structure of super-powerful crystals and the denser way of packing balls, such as stacking oranges in the supermarket.

The discovery suggests that the “Vitruvius man” is not just a beautiful work of art, but also a scientific work, centuries ahead of his time.

da vinchi

“Leonardo knew, or felt, that our bodies are made with the same mathematical elegance as the universe around us,” the author of the study said.

“What is really amazing is that this one plan incorporates a universal design rule. It shows that the same “number plan” that nature uses for efficient design also works on the ideal human body, “said Dr. Swinni.