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How math and language can combine to map the globe and create strong passwords, using the power of 3 random words

By Mary Lynn Reed, Professor of Mathematics, Rochester Institute of Technology
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It’s hard to imagine that three random words have the power to both map the globe and keep your private data secure. The secret behind this power is just a little bit of math.

What3words is an app and web-based service that provides a geographic reference for every 3-meter-by-3-meter square on Earth using three random words. If your brain operates more naturally in the English measurement system, 3 meters is about 9.8 feet. So, you could think of them as roughly 10-foot-by-10-foot squares, which is about the size of a small home…The Conversation


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