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 ...

Which laser pointer for cats is best? Even domestic, indoor cats love to hunt. It’s in their nature. So, having a good laser pointer is a must. Not only do laser pointers appeal to a cat’s basic ...

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 ...