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Text File  |  1995-11-04  |  296b  |  11 lines
  1. radiation pressure: The physical
  2. force exerted by electromagnetic
  3. radiation. Although light is usually
  4. thought of as a visual phenomenon,
  5. it can also have a mechanical effect
  6. on matter. When light strikes an
  7. object, it exerts a pressure, which can
  8. actually cause the object to move. 
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