"How Rosalind Franklin Discovered the Helical Structure of DNA: Experiments in Diffraction," Gregory Braun, Dennis Tierney and Heidrun Schmitzer, The Physics Teacher, vol 49.3, 140-143 (2011).
6-8: 4F/M4. Vibrations in materials set up wavelike disturbances that spread away from the source. Sound and earthquake waves are examples. These and other waves move at different speeds in different materials.
6-8: 4F/M7. Wave behavior can be described in terms of how fast the disturbance spreads, and in terms of the distance between successive peaks of the disturbance (the wavelength).
9-12: 4F/H6ab. Waves can superpose on one another, bend around corners, reflect off surfaces, be absorbed by materials they enter, and change direction when entering a new material. All these effects vary with wavelength.
%0 Computer Program %A Christian, Wolfgang %D 2017 %T X-Ray Diffraction JS Model %7 1.0 %U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=14302&DocID=4655
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