Unprotected lithium cells, high voltage, and blinding laser light. What can go wrong? It is fun to watch the testing, but we don’t want to build one. We’ll settle for our handheld pointer.
However, ironically for him, he is alarmed that many green laser pointers are more powerful than they are supposed to be. Sure, you often want a powerful laser, but if you think a laser is safe ...
Laser pointers (sometimes known as laser pens) are compact, handheld laser devices. They are typically used to highlight an object or point of interest by illuminating it with a bright spot of colored ...
Laser pointers are handheld and battery-powered gadgets which emit a beam of coloured light - usually red, green or blue. They have been used for decades by teachers and lecturers for highlighting ...
Herbert Kroemer explains to Nature Materials his contributions to the design principle of these lasers, for which he shared the 2000 Nobel Prize in Physics. A few light pointers, and of course CD ...
A San Antonio woman was sentenced to more than three years in prison for forcing a police helicopter to divert an investigation with a laser pointer. 60-year-old Sandra Roberson was sentenced to ...
A New York teen lost vision in his left eye moments after powering up a “defectively designed,” Chinese-made laser pointer he purchased on Amazon, according to a lawsuit against the retail ...