How do Touch Screens Work?

Why do adults smell more than children? How are bionic implants contributing to longevity? What is progeria? How do touch screens work?
26 April 2013
Presented by Chris Smith, Redi Tlhabi

Assorted smartphones

Assorted smartphones. From left to right, top row: iPhone 3G, Blackberry 8820, Nokia N78, Nokia N81, (bottom row) Nokia N95, Nokia E65, Nokia N70.

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Why do adults smell more than children? How are bionic implants contributing to longevity? What is progeria? How do touch screens work? Why do anti-HIV drugs cause fat redistribution? Why does power = volts x amps? What actually are dark matter and dark energy? Join Dr Chris for the answers to more cool questions from South Africa...

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