For many years, one of the biggest stumbling blocks I faced at star parties was the confusion that arose whenever I tried to show attendees the locations of notable stars and constellations or the ...

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 ...

The following relates to the changes which are now law. These laws apply to all laser pointers, regardless of their power level. Q: Am I allowed to own a battery operated, hand held, laser pointer? A: ...

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 ...

Laser pointers are hand held, battery operated devices designed or adapted to emit a laser beam that may be used for the purposes of aiming, targeting or pointing. In recent times, some members of the ...

The videos from [styropyro] are always amusing and informative. However, ironically for him, he is alarmed that many green laser pointers are more powerful than they are supposed to be. Sure, you ...