Carolyn Trietsch recently defended her Ph.D. in entomology at Penn State. You can view her website or follow her on Twitter @carolyntrietsch. Laser pointers are perhaps the most abused visual aids in ...

In this video, we’ll be comparing 6 Laser Pointers that are designed for different kinds of users. Not only will we take build quality into consideration, but also unique selling features, so that you ...

The videos from [styropyro] are always amusing and informative. However, ironically for him, he is alarmed that many green laser pointers are more powerful than they are supposed to be. Sure, you ...

YouTuber and inventor Styropyro has built and tested a 250-watt handheld laser device. The system is roughly 50,000 times more powerful than standard commercial laser pointers, Styropyro claims in his ...

LEBANON, Mo. (KY3) - We’re looking at the danger of laser pointers. Doctors say they can cause some serious health problems. “She started seeing spots almost immediately,” said Jennifer Bressner. Her ...