At a glance, a painting by Jackson Pollock can look deceptively accidental: just a quick flick of color on a canvas.

A quantitative analysis of Pollock’s streams, drips, and coils, by Harvard mathematician L. Mahadevan and collaborators at Boston College, reveals, however, that the artist had to be slow—he had to be deliberate—to exploit fluid dynamics in the way that he did.

The finding, published in Physics Today, represents a rare collision between mathematics, physics, and art history, providing new insight into the artist’s method and techniques—as well as his appreciation for the beauty of natural phenomena. (…)

Pollock’s signature style involved laying a canvas on the floor and pouring paint onto it in continuous, curving streams. Rather than pouring straight from the can, he applied paint from a stick or a trowel, waving his hand back and forth above the canvas and adjusting the height and angle of the trowel to make the stream of paint wider or thinner.

Simultaneously restricted and inspired by the laws of nature, Pollock took on the role of experimentalist, ceding a certain amount of control to physics in order to create new aesthetic effects.

Instabilities in a free fluid jet can form in a few different ways: the jet can break into drops, it can splash upon impact with a surface, or it can fold and coil, as when a stream of honey lands on a slice of toast. The artist Robert Motherwell produced drips and splashes by flicking his brush; Pollock’s technique, on the other hand, is defined by the way a relatively slow-moving stream of paint falls onto the canvas, producing trails and coils.

In a sense, the authors note, Pollock was learning and using physics, experimenting with coiling fluids quite a bit before the first scientific papers on the subject would appear in the late 1950s and ’60s.

{ EurekAlert | Continue reading | More: The Physics of Jackson Pollock’s Art }

painting { Jackson Pollock, Untitled, 1948-1949 }

art, science | July 18th, 2011