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Time Machine

Remembering Srinivasa Sourirajan, the 'father of reverse osmosis'

Remembering Srinivasa Sourirajan, the 'father of reverse osmosis'

Dr Srinivasa Sourirajan co-invented the life-saving reverse osmosis water purification process.
Alan Turing: The enigmatic codebreaker

Alan Turing: The enigmatic codebreaker

Mathematician Alan Turing's role in cracking German ciphers shaped the course of the Second World War and saved millions of lives.
Masahiro Hara: he cracked the QR code

Masahiro Hara: he cracked the QR code

Drawing ideas from a board game, Masahiro Hara made the world a more efficiently pixellated place with a machine-readable matrix.
Luke Howard: the 'Godfather of Clouds'

Luke Howard: the 'Godfather of Clouds'

By classifying clouds, Luke Howard brought order to meteorology.
This rod is a life-saver

This rod is a life-saver

Benjamin Franklin's kite experiment yielded shock-absorbing lightning rods.
2003: An ignoble tussle over a Nobel

2003: An ignoble tussle over a Nobel

Twenty years ago, a prize set off an unseemly controversy and cleaved the scientific community.
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