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Two young Mammoth Islanders and a visiting inventor learn the properties of light by observing a room full of crystal trophies. They learn that light waves can do three things when they strike an object: they can bounce, they can pass through; or they can be absorbed. The Islanders also studied lenses to bend light, and they looked through telescopes, periscopes, and binoculars.
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The speed of light is constant in a vacuum-but what about in the everyday world? This collection of 23 computer-animated video shorts examines the behavior of light as it passes through physical substances. Outlining Ptolemy's Law of Refraction and the concept of angle of incidence, the program examines light's motion through air, water, glass, and other media. Snell's Law, highlighting the importance of a refractive index, is explored, along with...
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"Though we take light for granted, the world's greatest scientists have long puzzled over its nature, properties, and behavior. Its incredible speed, mysterious frequency, relationship to color, form of travel, and uncanny ability to reflect, refract, diffract, and be absorbed altogether make light the ever-elusive quarry of science's greatest hunters of knowledge and understanding. This is the enthralling account of their investigations and discoveries,...
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English
Description
What is light? How does it function? Why is it so important to the foundations of the physical world? This program examines the nature of light and applications of its properties. The basic principles of light waves-propagation, reflection, and refraction-are explained, and information about lenses, the electromagnetic spectrum, and total internal reflection is illustrated using the human eye, rainbows, and raindrops as examples. Common applications,...
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"Snyder transports us to the streets, inns, and guildhalls of seventeenth-century Holland, where artists and scientists gathered, and to their studios and laboratories, where they mixed paints and prepared canvases, ground and polished lenses, examined and dissected insects and other animals, and invented the modern notion of seeing, ... [bringing] Vermeer and Van Leeuwenhoek--and the men and women around them--vividly to life"--Dust jacket flap.
"The...