When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Laser pointers may jazz up your PowerPoint presentation, but they can pose serious hazards to ...

Plugging neatly into your smartphone headphone jack, the iPin is a super-compact laser pointer compatible with iPhone and Android phones that comes with a handy presentation control app and is ...

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 ...

Instances of "lasing" -- aiming laser pointers at aircraft -- are increasing, posing a danger to travelers Study sheds doubt on advisories that say lasing can inflict permanent eye damage Those laser ...

Every now and then, one of my columns elicits enough reader response to merit a follow-up. Such is the case with a piece I wrote on green laser pointers (November 2013), in which I outlined their ...