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Technology
Ageing irises could confound biometric checks
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Technology
For insects, press print
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Technology
Artificial gut frees sewage-eating robot from humans
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Technology
Cheap drones could replace search-and-rescue choppers
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Health
Solid-state systems could sequence a genome for $100
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Health
Lung-on-a-chip points to alternative to animal tests
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Physics
Electron ‘invisible ink’ promises purer nanocrystals
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Technology
Sound-blasting chips for on-the-spot forensics
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Health
Athletes’ sweat test road to glory
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Technology
Putting the touch into touchscreens
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Technology
How touch screens could shrug off shoulder surfers
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Technology
Can’t find the words? Google with a photo instead
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