Diffraction
A HyperCard stack is used to display QuickTime movies in diffraction to demonstrate how the angle of dispersion depends on the wavelength (as a top view). The hardcopy of this movie can actually help the user see the red wave fronts being dispersed more than the shorter blue wave fronts by holding the hardcopy nearly flat in front of the eyes (as a side view). While rotating the hardcopy in a circle, the viewer will see the dispersion of the spectrum's red and blue wave fronts as parallel wave fronts emerging from the diffraction grating at different angles. The screens for this movie were drawn by a program in QuickBASIC. QuickBASIC programs are available to draw and load screens in black and white for easy animation (or inverted printing -- black on white).
Simulated Wave Motion -- Diffraction Blue Waves QT Movie (312K)
Simulated Wave Motion -- Diffraction Red Waves QT Movie (427K)
Published by the...
Physics and Chemistry Departments
Carson City-Crystal High School
Carson City, Michigan 48811
E-mail any questions to...
CEPeirce@aol.com
517 584 6312