The Surprising Fix for Robot Traffic Jams

Wheeled robots used in the crowd density experiment. Credit: Lucy Liu / Harvard SEAS Harvard researchers found that adding a little randomness to robot movements can prevent gridlock and dramatically boost efficiency in crowded swarms….

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Host a ’90s-Style Hangout

The Touch Grass Challenge Let’s log off and head outside. Week 4 Get Creative Welcome to week three of our monthlong summer challenge! If you’ve been with us so far, you’ve been taking device-free walks…


Apple scrambles to handle component price hikes

To grow, or to grow less? The PC industry is not growing (outside of Cupertino), and Apple and its investors already know that the inordinately high customer satisfaction ratings its platforms enjoy mean that when people…


Your GPS Lies in Cities. Scientists Finally Fixed It

GPS often struggles in cities because skyscrapers reflect and block satellite signals, leading to inaccurate locations. A new system called SmartNav tackles the problem with advanced corrections and 3D city modeling, delivering near-centimeter-level precision. Credit:…