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whisky bottles

Fighting fakery: How to make products immune to counterfeiting

27 September 2017

Alcohol, medicine, money, car airbags – you name it, it's been faked. Now tags you can't copy could block bogus goods forever

Dual image

Two-colour pixels let you draw pair of images in the same space

22 September 2017

Pixels created with pinholes in aluminium can change colour under different light, which may be useful for fighting forgeries and for storing data

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