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Alf Adams FRS, physicist at the University of Surrey, had an idea on a beach in the mid-eighties that made the modern internet, CD and DVD players, even bar-code readers possible.

Alf Adams FRS, physicist at the University of Surrey, had an idea on a beach in the mid-eighties that made the modern internet, CD and DVD players, and even bar-code readers possible. You probably have half a dozen ‘strained-layer quantum well lasers’ in your home.

Image credit: Alf Adams, BBC Copyright

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