By scanning files into a computer, he was able to get rid of sheaves of paper going back 40 years.

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He broods in front of the computer most of the day, scanning chemical databases and holding his fire until he has a really good idea.

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Frank Gehry, a godfather of contemporary American design if there is one, is shown crumpling paper or aluminium foil into a form, and then scanning the shape by computer in order to reduce it to two dimensions or make it into a model, so that a design can be refined or manufactured.

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Another keyboard replacement involves various brain scanning technologies, such as when wheelchair-bound people can control a computer with an eyeball flick.

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