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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A New York bodega worker has gone viral for giving away goods to his customers in exchange for answers to random math questions.

Imagine a garden filled with every variety of flower in the world — delicate orchids, towering sunflowers, the waxy blossoms of the saguaro cactus and the corpse flower’s putrid eruptions. Now imagine ...