Huygens' principle
English
Etymology
From Christiaan Huygens, Dutch physicist.
Proper noun
Huygens' principle
- (physics) The assumption that each point on a wavefront may be regarded as a source of secondary waves and that the position of the wavefront at a later time is determined by the envelope of these secondary waves; proposed in order to explain the fact that light travels in a straight line and casts sharp shadows.
Related terms
- Huygens-Fresnel principle