physical laws
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 to 0.7 (waist measurement is 70% of the hip measurement), the sexier the swagger. And guess who has that exact ratio? Jessica Alba, pictured above. Follow us for more examples (NSFW).
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