Funny Laser Pointer

But the flashlight\'s beam spread out too much. Then Clark chanced upon a laser pointer. "I looked at the laser spot, and my feet just seemed to go to it," he says.Clark, for one, now carries a laser point faithfully. While such a device retails only for $10 or $15, "it gets pretty expensive buying batteries," he says, noting that his device takes three button batteries. It\'s also difficult to see the laser spot outdoors on sunny days. And Counihan says that a laser that emits a line instead of a spot might work even better.

You don\'t see the laser dot projected anywhere because there is no end to this room. Now, imagine you are shining the light parallel to an infinite wall. Turn your wrist so the laser pointer intersects the wall. At what point does the green laser pointerintersect the wall?Over the last few years laser pointers have received attention in the press and aroused some public concern. As a consumer product, laser pointers are designed to be safe when used for their intended purpose.Unfortunately,however, the laser pointer can easily be misused.

• Laser pointers are used widely be teachers and lecturers.It is a lot easier for a university lecturer or teacher to simply sit down, talk about what\'s on the powerpoint or whiteboard, and point to things on the board using their green laser pointer . Most laser pointers uses are not harmful and legitimate. Lasers can save time and energy.

Designed for large or small meeting rooms, pointers are divided into our traditional telescopic, or pinpoint accurate Red Laser Pointer.A patient\'s discovery that an everyday laser pointer helps him walk may point the way toward an effective remedy for a common and frustrating symptom of Parkinson\'s disease.While the small size of the study should make patients and doctors pause before assuming the treatment will help, the authors say neurologists would do well to have a laser pointer handy to let patients give it a try.

A 4-in-1 pen that enables you to advance (and page back) PowerPoint presentations, has a Red Laser Pointer , stylus, and ballpoint pen for less than $25!

Conduct this cool diffraction grating experiment to determine the wavelength of 3000mw laser pointerlight emitted from any laser pointer.Do you want to have a Blue-violet laser pointer? Are you wondering which one can meet your demand? This Blue-violet laser pointer can meet your needs. This blue laser pointer is small and easy to carry. This portable laser pointer can be used as a gift for your friends. You can\'t miss this Blue-violet laser pointer!