My laser is as essential as my loupes or handpiece, and I can’t live without them’ – why forward-thinking dentists invest in ...

Oaxaca, Mexico, is home to the tlayuda, an oversize corn tortilla topped with black beans, cheese, meats and a spate of other ingredients. It's then toasted on a grill. Since ...

From Isaac Asimov's Three Laws of Robotics to bipedal machines you can buy today, here are 12 important milestones in the development of robots.