Is it a printing error? A pixilated maze? One of those puzzles where you have to cross your eyes to see the hidden image? Two-dimensional matrix bar codes are expanding into the mainstream. You can ...

Welcome to the roundup of the best Android applications that went live in the Play Store or were spotted by us in the previous three weeks or so. Today I have a Tracker detection app from Apple, a ...

Everything we do today is done through a single ‘tap’ on our mobile devices. With this single ‘tap’ we can share things on social media, check our health status, communicate with others and so on and ...

Production designer Simon Whiteley got the idea from his wife's cookbook. If you’ve ever wondered what that green text in “The Matrix” really meant, prepare for an answer that’s almost as ...

Mosaics of black-and-white squares that look like tiny crossword puzzles are cropping up everywhere, from bus stop ads and cereal boxes to stickers on bananas, and they're changing the way people get ...