Diffraction

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Diffraction Meaning and Definition in Dictionary

Definitions from Wordnet 2.0


  • when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands

Definitions from Wiktionary


  • when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands

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Diffraction Meaning and Definition in Wikipedia


Diffraction is a physics concept. Diffraction occurs when waves bend around small obstacles, or when waves spread out after they pass through small openings. Diffraction occurs with all waves, including sound waves, water waves, and electromagnetic waves such as light that the eye can see. Diffraction also occurs with matter such as electrons.

Diffraction is caused by one wave of light being shifted by a diffracting object. This shift will cause the wave to have interference with itself. Interference can be either constructive or destructive. When interference is constructive, the intensity of the wave will increase. When interference is destructive, the intensity will decrease, sometimes to a point where it is completely destroyed. These patterns of interference rely on the size of the diffracting object and the size of the wave. The strongest examples of diffraction occur in waves where the wavelength is close to the same size of the object causing the diffraction.



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Diffraction Sample Sentences in News


  • Fading orange-red in Van Gogh's paintings
    ( Deutsches Elektronen-Synchrotron DESY ) Red lead is most familiar to us in orange-red rustproof paint. Artists have treasured the brilliant color of this pigment for their paintings since ancient times. However, various ageing processes cause discoloration of the saturated hue over time. Thanks to a combination of X-ray diffraction mapping and tomography experim Read more on this news related to 'Diffraction'
  • Super-resolution microscopes reveal link between genome packaging, cell pluripotency
    In 1953 Watson and Crick first published the discovery of the double helix structure of the DNA. They were able to visualize the DNA structure by means of X-Ray diffraction. Techniques, such as electron microscopy, allowed scientists to identify nucleosomes, the first and most basic level of chromosome organization. Until now it was known that our DNA is packaged Read more on this news related to 'Diffraction'
  • First scientific publication from data collected at NSLS-II
    ( DOE/Brookhaven National Laboratory ) Just weeks after NSLS-II achieved first light, a team of scientists at the X-Ray Powder Diffraction beamline tested a setup that yielded data on thermoelectric materials and resulted in science published in Applied Physics Letters - Materials. Read more on this news related to 'Diffraction'

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