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 ...

[Crispndry] found he needed a laser level, but didn’t want to spend a few hundred dollars on a tool he might only get a few uses out of… So he decided to build one himself. If you’re not familiar, a ...

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 ...

Using a low-cost apparatus designed to quickly and accurately measure the properties of handheld laser devices, researchers tested 122 laser pointers and found that nearly 90 percent of green pointers ...

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Green laser pointers have become a popular consumer item, delivering light that's brighter to the eye than red lasers, but stories have circulated on the Web about the potential hazards of inexpensive ...

Low-cost apparatus designed by National Institute of Standards and Technology (NIST) researchers to quickly and accurately measure the properties of handheld laser devices has shown that nearly 90 ...