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Butterflies may hold key to more secure bank cards




Butterflies may hold key to more secure bank cards
Butterflies may hold key to more secure bank cards



http://www.cbc.ca/technology/story/2010/06/02/butterflies-color-bank-card-security.html 

CBC News
June 2, 2010 

The way light hits a tropical butterfly's wings could make your bank 
card safer, according to a new U.K. study.

That's because scientists are now able to mimic the cell structure of 
butterfly scales to encrypt information on banknotes and other secure 
cards, researchers at Britain's Cambridge University say.

"We have unlocked one of nature's secrets and combined this knowledge 
with state-of-the-art nanofabrication to mimic the intricate optical 
designs found in nature," said lead researcher Mathias Kolle on the 
university's website.

"We still need to refine our system, but in future we could see 
structures based on butterflies' wings shining from a (pound) note or 
even our passports," he said.

[...]


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