X-RAY SPECTROSCOPY: THE INSIDE STORY
Dr. Robert J. Liefeld, Professor of Physics, New Mexico State University, explains how x-rays are generated and how an x-ray spectrometer disperses them into a spectrum. He shows how specially grown crystals are made and used in a two-crystal vacuum x-ray spectrometer to diffuse an x-ray beam, to isolate a single wavelength, and to scan a spectrum and record its characteristics. [color, 25 minutes] $29.95 ST0147
SPACE BASICS — LIFTOFF TO LEARNING
This video explains space flight concepts such as how we get into orbit and why we float when orbiting Earth. [color, 21 minutes] $29.95 ST0148
POETRY OF POLYMERS
The video shows research in polymers being carried out by Dr. Frank d’Alelio, Research Professor of Chemistry at the University of Notre Dame. The molecular structure of polymers is explained. The molding of a polymer from basic ingredients is demonstrated. The challenge of inquiring into the basic nature of materials is dramatically presented. [color, 20 minutes] $29.95 ST0145
NEWTON IN SPACE
With the aid of space shuttle astronauts and animated sequences, students learn about Newton's three laws of motion. [color, 12 1/2 minutes] $29.95 ST0085
ADVANCING TV BY SATELLITE
Describes how communications satellites work, and emphasizes the Communications Technology Satellite which may have been the precursor of small user two-way television communications. [color, 28 minutes] $29.95 ST0084
ELECTROMAGNETIC SPECTRUM: A SYMPHONY OF LIGHT
Astronauts show how the spectrum of light is important to the study of space, stars and our universe. [color, 19 minutes] $29.95 ST0080
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