The Secret Pattern That Stops You Copying Bank Notes

Channel:
Tom Scott
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Published on ● Video Link: https://www.youtube.com/watch?v=tMR25RSOzFo


Duration: 1:31
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http://tomscott.com - @tomscott - There's a hidden pattern on banknotes, all around the world, that means photocopiers refuse to copy them.



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tom scott
tomscott
things you might not know
eurion
eurion constellation
photocopier