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Search Results for X-ray diffraction - Encyclopædia Britannica
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X-ray diffraction
a phenomenon in which the atoms of a crystal, by virtue of their uniform spacing, cause an interference pattern of the waves present in an incident beam of X rays. The atomic planes of the crystal ...
diffraction
the spreading of waves around obstacles. Diffraction takes place with sound; with electromagnetic radiation, such as light, X-rays, and gamma rays; and with very small moving particles such as ...
X ray
The relationship of X rays to other electromagnetic radiation within the electromagnetic spectrum.any electromagnetic radiation of an extremely short wavelength produced by the deceleration of charged particles or the transitions of electrons in atoms. As can be seen in the , the wavelengths of X ...
Laue diffraction pattern
in X rays, a regular array of spots on a photographic emulsion resulting from X rays scattered by certain groups of parallel atomic planes within a crystal. When a thin, pencil-like beam of X rays ...
Results of X-ray diffraction studies
   from the protein article
Figure 4: The -helix (see text).Most knowledge concerning secondary and tertiary structure of globular proteins has been obtained by the examination of their crystals using X-ray diffraction. In this technique X rays are allowed to ...
X-ray emission
   from the analysis article
X-ray emission spectrometry is the group of analytical methods in which emitted X-ray radiation is monitored. X rays are emitted when an electron in an outer orbital falls into a vacancy in an inner ...
X rays as waves
   from the X ray article
According to classical electromagnetic theory, the deceleration of electrons will produce electromagnetic radiation, in the same way that accelerated electrons in a radio antenna produce radio waves. ...
Detection and measurement of X rays
   from the X ray article
A beam of X rays is characterized by its intensity and its spectral (energy) distribution, and a number of methods for measuring these properties have been developed.
Scattering of X rays
   from the quantum mechanics article
Soon scientists were faced with the fact that another form of radiation, X rays, also exhibits both wave and particle properties. Max von Laue of Germany had shown in 1912 that crystals can be used ...
Applications of X rays
   from the X ray article
Because of the many varied properties of X rays, they have been applied to a wide range of medical, industrial, and scientific problems. Some of these are differential absorption, quantitative ...

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Results 1-5 of 330.
X-ray diffraction - Phenomenon in which the atoms of a crystal, by virtue of their ...
metallography - Study of the structure of metals and alloys, particularly using ...
Wilkins, Maurice (Hugh Frederick) - New Zealand-born British biophysicist.
Kendrew, Sir John Cowdery - British biochemist.
mineralogy - Scientific study of minerals, including their physical properties, ...

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Results 1-3 of 153.
electron: X-ray diffraction 

X ray: electromagnetic spectrum 

grazing incidence: refraction of light rays in an X-ray telescope 

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Results 1-4 of 4.
Sharks and Rays: Physical Characteristics (1:22)

Exceptionally keen senses are among the physical attributes of sharks and rays.
Rays: Defensive Creatures (1:15)

What rays lack in swimming capabilities is compensated for in their defense mechanisms.
Human Skeleton: Joint Movement (1:17)

This x-ray footage of a moving skeleton shows the different motions that the human body is designed to accomplish.
Sharks: History and Evolution (1:30)

The shark is an ancient life form which evolved into many different species including rays.
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Results 1-5 of 366.
Max Theodor Felix von Laue
Nobel Foundation
Biography of this German scientist awarded the Nobel Prize in Physics, in 1914, for his discovery of the diffraction of X-rays by crystals.
Chandra X-ray Observatory News
News updates on the latest developments and findings in the field of X-ray astronomy by this center in U.S.
Chandra X-ray Observatory Center
Information on this center in U.S. monitoring the Chandra X-ray spacecraft. Provides its latest status, vision and mission, an insight on Indian-American Nobel laureate Subrahmanyan Chandrasekhar, student and teacher resources, basic facts on X-ray astronomy, newsletter, and current news.
The Rossi X-ray Timing Explorer Learning Center
National Aeronautics and Space Administration(NASA)
"Information on this satellite. Provides details on X-ray astronomy, and includes a list of the discoveries. Also contains educational resources for teachers, and features images as well as video files."
X-Ray Astronomy
Information on this branch of physics by the Germany-based Max-Planck-Institut. Contains details on its laboratories, projects, research activities, publications, and events. Features a photo gallery. Also available in German.

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