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- https://phys.libretexts.org/Courses/Prince_Georges_Community_College/PHY_2040%3A_General_Physics_III/02%3A_Sound/2.5%3A_Further_TopicsSpherical waves come from point source in a spherical pattern; plane waves are infinite parallel planes normal to the phase velocity vector.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/JJC_-_PHYS_110/05%3A_Book-_Physics_(Boundless)/5.09%3A_Sound/5.9.05%3A_Further_TopicsSpherical waves come from point source in a spherical pattern; plane waves are infinite parallel planes normal to the phase velocity vector.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Introductory_Physics_II_(1112)/11%3A_Physical_Optics/11.11%3A_Huygens's_Principle_-_DiffractionAn accurate technique for determining how and where waves propagate is given by Huygens’s principle: Every point on a wavefront is a source of wavelets that spread out in the forward direction at the ...An accurate technique for determining how and where waves propagate is given by Huygens’s principle: Every point on a wavefront is a source of wavelets that spread out in the forward direction at the same speed as the wave itself. The new wavefront is a line tangent to all of the wavelets. Diffraction is the bending of a wave around the edges of an opening or other obstacle.
- https://phys.libretexts.org/Bookshelves/Classical_Mechanics/Graduate_Classical_Mechanics_(Fowler)/03%3A_Fermat's_Principle_of_Least_Time/3.02%3A_Huygens'_Picture_of_Wave_PropagationOne of the principal skeptics of the wave theory, the mathematician Poisson, pointed out that it was obvious nonsense because, using Fresnel's own arguments, it predicted that in the very center of th...One of the principal skeptics of the wave theory, the mathematician Poisson, pointed out that it was obvious nonsense because, using Fresnel's own arguments, it predicted that in the very center of the dark shadow of a sphere illuminated by a point source of light, there should be a bright spot: all the "light waves" grazing the edge of the sphere would generate secondary wavelets which would land at that spot in phase.
- https://phys.libretexts.org/Bookshelves/College_Physics/College_Physics_1e_(OpenStax)/27%3A_Wave_Optics/27.02%3A_Huygens's_Principle_-_DiffractionAn accurate technique for determining how and where waves propagate is given by Huygens’s principle: Every point on a wavefront is a source of wavelets that spread out in the forward direction at the ...An accurate technique for determining how and where waves propagate is given by Huygens’s principle: Every point on a wavefront is a source of wavelets that spread out in the forward direction at the same speed as the wave itself. The new wavefront is a line tangent to all of the wavelets. Diffraction is the bending of a wave around the edges of an opening or other obstacle.
- https://phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/16%3A_Sound/16.5%3A_Further_TopicsSpherical waves come from point source in a spherical pattern; plane waves are infinite parallel planes normal to the phase velocity vector.
