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 ...
I’m sure all of you reading this have seen or used a laser pointer at some point in your life, or maybe you’ve even bought one online. But have you ever paid attention to the warning signs on your ...
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