Like a lot of people, I own multiple laser pointers. These come in handy when I do public speaking for work, but that's only once a month or so. And with the sad passing of our dog back in December ...

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 ...