After studying the movements of women for years, finally we get scientific confirmation of what we’re seeing: Researchers at Cambridge University in the U.K. have figured out exactly what makes a perfect swivel-hipped walk with “a more angular swaying and bounce to the hips.” The mathematicians got out their slide rules, calculators, blow-up dolls and binoculars, scientifically determining the perfect ratio of waist to hips. Their results? The closer that ratio is 0.7, the sexier the swagger. And guess who has that exact ratio: Jessica Alba, pictured above. Follow us for more examples (NSFW).

Other babes of historical importance were also mentioned, such as Marilyn Monroe (pictured at left), with a target ratio of 0.69, making it almost to the level of perfection of Jessica, but not quite. This 0.7 ratio translates into a waist of 25 inches and 36-inch hips, making that tick-tock walk look absolutely perfect. But the ratio is not necessarily related to measurements or weight—just the difference between those two measurements. However, we’re betting that if those numbers get a whole lot larger, the illusion is lost.

Other possessors of that magic 0.7 ratio: Sophia Loren, Alessandra Ambrosio and Venus de Milo.

source: gizmodo.com