Light and sound
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Presents information, facts, figures, photographs, charts, and diagrams that explain the science of light and sound, discussing color and brightness, ears and hearing, sound waves, echoes and sonar, lasers and holograms, and other topics.
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the long version
Presents information, facts, figures, photographs, charts, and diagrams that explain the science of light and sound, discussing color and brightness, ears and hearing, sound waves, echoes and sonar, lasers and holograms, and other topics.
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"Presents information, facts, figures, photographs, charts, and diagrams that explain the science of light and sound, discussing color and brightness, ears and hearing, sound waves, echoes and sonar, lasers and …"
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