Synopsis: Ponytail physics
String theory: Hair has vexed scientists and artists for centuries. (Credit: Tim Hornyak) Does your coif suffer from orientational disorder? Have you checked the gravitational effects on your locks lately? Can you solve the differential equation in your beehive? Well, scientists now can. Pioneering British researchers have succeeded in formulating an equation that unravels the deep physics mysteries of that great frontier of science, human ponytails. In a study that screams Ig Nobel Prize, the researchers from the University of Cambridge, the University of Warwick, and Unilever published a hirsute equation that for the first time describes how hairs hang together and predicts the form of a ponytail. "We identify the balance of forces in various regions of the ponytail, extract a remarkably simple equation of state from laboratory measurements of human ponytails, and relate the pressure to the measured random curvatures of individual hairs," Raymond Goldstein, Robin Ball, and Patrick Warren write in Physic
A new theoretical model of hair explains how the curliness and elasticity of hair fibers produce the characteristic shape of a ponytail. Published Mon Feb 13, 2012
Mon 13 Feb 12 from APS Physics
Physicists have come up with an equation that predicts the shape of a ponytail.
Mon 13 Feb 12 from BBC News
(PhysOrg.com) -- New research provides the first mathematical understanding of the shape of a ponytail and could have implications for the textile industry, computer animation and personal care ...
Mon 13 Feb 12 from Phys.org
Rapunzel, Leonardo and the physics of the ponytail, Tue 14 Feb 12 from Science Blog
CURLY PROBLEM: British scientists may have cracked a problem that has perplexed humanity since Leonardo da Vinci pondered it 500 years ago.
Sun 12 Feb 12 from ABC Science
Equation explains why hair grows differently on each person
Sat 11 Feb 12 from Science Now
Physicists in the U.K. have derived a simple math formula that explains the shapes of ponytails, accounting for the balance between gravity and hair springiness.
Tue 14 Feb 12 from Livescience
String theory: Hair has vexed scientists and artists for centuries. (Credit: Tim Hornyak) Does your coif suffer from orientational disorder? Have you checked the gravitational effects on your ...
Tue 14 Feb 12 from CNET Crave
Mon 13 Feb 12 from Physicsworld Blog
British scientists reported Friday they have cracked the mathematical conundrum behind the shape of hair that has perplexed humanity since Leonardo da Vinci first pondered it some 500 years ...
Mon 13 Feb 12 from RedOrbit
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