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Colour-changing afterglow protects banknotes

A team of chemists in China has discovered a single compound that has a colour-modified afterglow. According to Chemistry World, this technique could protect banknotes...

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Greece Has Begun Issuing a New Generation Passport

Greece has launched a New Generation Passport, with a new design and advanced security features. The Hellenic Police Headquarters, National Passport and Secure Document...

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Touch

Perceptible relief (in the form of shapes or symbols) added for the benefit of the visually impaired. Touch consists of raised dots created by means...

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