Thursday, August 22, 2013

How touch screen phones work › Bernie's Basics (ABC Science)

How touch screen phones work › Bernie's Basics (ABC Science): "Touch screens on phones and tablets really have the X factor. Being able to text, phone or film something just by swiping your finger on glass almost makes up for all those other failed sci-fi promises of the 60s.

But considering how futuristic touch screens seem, they rely on a bit of physics that's almost as old as Newton — capacitance — and the fact that your finger is three parts salty water."

'via Blog this'