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 ...

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 ...

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: ...

Use PowerPoint’s laser pointer to catch attention and add excitement Your email has been sent Use PowerPoint's cool laser pointer feature to simulate a laser pointer during a PowerPoint presentation.