This activity demonstrates how white light, such as that from an overhead projector, is broken up into its component colors by a diffraction grating. Students will learn the relationships between light's wavelength,...

Cornell High Energy Synchrotron Source (CHESS) "is a high-intensity high-energy X-ray source" for research in many scientific fields including materials science, physics, and chemistry. Researchers can learn about how...

This site provided by National Aeronautics and Space Administration contains an introduction to X-rays and their uses in medicine and astronomy. Descriptions of the first X-ray observations, how they are used to...

This article from the American Physical Society’s APS News Online provides an explanation of the discovery of X-rays and the revolutionary impact it has had on physics and astronomy. Roentgen's scientific career is...

This activity asks students to analyze both the light curve from a pulsar in the crab nebula and the Fourier Transform of the light curve. From this students must find the period of the light intensity, determine the...