In junior high school in the 1970s, I built a small helium-neon laser. (Yes, I was a science geek.) By built, I mean I ordered a sealed gas tube with mirrors on both ends and built a high-voltage ...

Should you ever be captured while checking out a crazed villain's secret headquarters, it's entirely possible that a burning laser might provide you with your only means of escape. Of course, anything ...

Kelli Halston Hoversten, of Columbia, Mo., can no longer see out of her left eye. Her right eye is better. She has partial vision. But before Aug. 30, 2014, Hoversten could see perfectly. On the day ...

You’ve probably seen viral “burning laser” videos, but most don’t explain what’s actually happening. Here, we take a safe, educational look at how lasers focus light, how power levels are regulated, ...

“Not really. The beam is so bright, you could hurt someone if it reflected into their eye.” “So what do you do with it?” “…pop balloons…” I am not a laser expert, unless you count watching Real Genius ...

Lasers are at the cutting edge of surgery. However, there is still a lot that scientists do not know about the ways in which laser light interacts with living tissue. Now, some of these basic ...