TagsColor-changing

Tag: Color-changing

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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Americans can return home on expired passports

U.S. citizens who are currently overseas and whose passports expired on or after 1 January 2020, can use their passports for to return home...

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Taiwan releases new passport design

The Taiwanese government has released a new design for the country's passport. The new design highlights the English word for "Taiwan" in the hope it...

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