Daily Archives: August 3, 2017

A better way to make holograms

HOLOGRAPHY is a useful technology, but somehow faintly disappointing. The fantasy is of a “Star Trek” style holodeck, or even the less ambitious idea of three-dimensional television pictures. The reality, for the man or woman in the street, is smudgy images that act as security features on credit cards, passports and an increasing number of banknotes. Holography does have many ...

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