Why Do We Have Fingerprints?

Why Do We Have Fingerprints? 

Why do people have fingerprints?

Fingerprints do not help primates grip, as previously thought, scientists have discovered. They actually reduce the friction needed to hold onto flat surfaces. Now Dr Roland Ennos and his team at The University of Manchester are trying to find out: why do we have them?

Dr Ennos, at the University’s Faculty of Life Sciences, said: “I have been thinking about this for years and, having played around with it for a bit, realised that skin is rubbery so the ridges in fingerprints might actually reduce grip.

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Windbelt: Small-Scale Wind Power To Help Power Third World

[youtube]http://www.youtube.com/watch?v=dZ0v-CK63-4[/youtube] 

 Working in Haiti, Shawn Frayne, a 28-year-old inventor based in Mountain View, Calif., saw the need for small-scale wind power to juice LED lamps and radios in the homes of the poor. Conventional wind turbines don’t scale down well-there’s too much friction in the gearbox and other components. “With rotary power, there’s nothing out there that generates under 50 watts,” Frayne says. So he took a new tack, studying the way vibrations caused by the wind led to the collapse in 1940 of Washington’s Tacoma Narrows Bridge (aka Galloping Gertie).

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Futuristic Ferrari Monza

 Futuristic Ferrari Monza

 Ferrari Monza

Keeping in sync with the celebrated name Enzo, Monza not only sounds but also appears to be the future of Ferrari. This revolutionary Ferrari concept, designed by Iman Maghsoudi, is cleverly programmed to drive on its own. At slower speeds, the “pilot” sits in full control in a cockpit akin to straddling a motorcycle whenever you want to take over the driving. Yanko also states that this red speeding beast changes shape resembling an airfoil for maximum aerodynamics.

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