The Princess of Wales looked delighted today as she arrived at the National Portrait Gallery in central London hand-in-hand with a five-year-old girl after riding next to her on the bus.

Have you ever wondered how speed guns measure the speed of moving vehicles or how an athlete's sprint speed is recorded? Normally these speed sensors work with radar or laser technology to bounce back ...

He fought for a secondary world title in just his third pro fight and will likely bring advantages in hand speed, athleticism, footwork and defense against Benavidez, not to mention a four-inch ...