The US Food and Drug Administration (FDA) has finalized a 2014 guidance that lays out its thinking what is and isn’t a regulated laser product used for surveying, leveling and alignment. While certain ...
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 ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results