[robives’s] project side-steps the need for galvanometers by using glow-in-the-dark vinyl and a UV laser. The result is a laser beam trail which lasts much longer, which means that solid lines ...

On a screen opposite the blue laser, they saw a dark line where the green laser blocked blue light leaving the crystal. This curious phenomenon arises from a property of the ruby itself.

But if you’re on the hairless side of the fence and also have an abundance of melanin, the best laser hair removal devices for dark skin are an efficient—and nearly permanent—option to stop ...

Scientists use advanced laser technology to reveal incredibly precise hidden tattoos on more than 100 mummies found in Peru.