Every day, millions of delivery vehicles crisscross cities and highways, racing against the clock to drop off packages within promised time windows. Behind that familiar sight lies one of the hardest ...

Every step a human takes produces a signal, and every signal tells a story. For decades, clinicians and researchers have recorded the subtle rhythms of walking, the way the ankles and knees and hips ...

The US government criticized Australia’s plan to clamp down on social media algorithms and harmful content online, opening up a fresh political front in Canberra’s campaign to get tougher on Big Tech.