A pen-shaped pointing device that contains a small diode laser that emits an intense beam of light, used to direct attention during presentations.
- The car did not slow down when signaled by a U.S. soldier holding a search light and laser pointer.
- Pulses also exhibit diffraction - spreading perpendicular to their propagation direction - just as a laser pointer's beam gets wider on the way to a distant screen.
- Also, some dogs enjoy ‘chasing’ the beam from a laser pointer.
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