What I?ve never understood is how that can be. The screens (and, on the iPhone 4, the back as well) are glass, for crying out loud. People carry their phones around in pockets with keys and change. People drop these things, toss them, scrape them. Why on earth don?t they get totally scratched up?
I?ve just spent a year filming a new PBS Nova miniseries about, of all things, materials science. (I?m the host; it?s on in January. You can see the trailer here). Materials science is a little-known, multidisciplinary field ? physics, chemistry, biology, nanotech and so on ? where some absolutely mind-blowing advances are being made.
http://www.whatisguide.net/0112-gorilla-glass.html
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