On the left an erased latter on the right a close up of the vaporized spot (Credit: Cambridge University) A new method for removing toner from paper was developed by researchers from Cambridge University. The technique which was demonstrated by ...
Beware the Dim Laser Pointer
Scientists from the National Institute of Standards and Technology researched the dangers of using green laser pointers,claimed to cause numerous problems to users who accidentally exposed their eyes directly to the green, focused light. IR leakage: (Top) Photo from an ...