I’ve been a runner—on and off—for over 25 years. For years, my goal was qualifying for the Boston Marathon. But I was never quite fast enough for my age group. At one point, I figured if I cou ...

By breaking a decades-old paradigm and rethinking the role that the dimension of time plays in physics, researchers from the ...

Light can tie knots—literally. Engineers at Duke University have managed to manipulate laser beams to form intricate 3D patterns called optical knots, using custom-designed optics. These twisted beams ...