1.   Maggie stumbled across the field with only a narrow beam of light from her flashlight to help her.

2.   The positive ions are accelerated to a narrow beam by the use of negative plates and a high voltage.

3.   In the Zartmann experiment a narrow beam of vaporised metal atoms is directed at a rotating cylindrical drum.

4.   An intense magnetic field within the holes applies a force to the electrons emitted from the flat cathode plate, causing them to spiral and focus into narrow beams.

5.   It is still not known what focuses the jets into such narrow beams.

6.   Lasers, which emit a narrow beam of intense light, can reproduce high-contrast large-screen images from standard television or recorded video media.

7.   --Select a special object, and aim a narrow beam of light to bring it to life.

8.   The key to the new method is the use of a device that shines dozens of narrow light beams into the eye.

9.   The robotic submersibles also carry advanced scanning systems that use a narrow beam of laser light to locate objects on the sea floor.