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Searched for: Publisher is WGBH Educational Foundation
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This video segment adapted from NOVA shows a dramatic landscape created by relatively recent rock-forming activity in the Grand Canyon. Volcanic eruptions only a million years ago created the canyon's youngest rocks. In...
The electromagnetic spectrum, spanning energies and wavelengths from radio waves to gamma rays, encompasses all forms of light. Infrared radiation, located in the range just beyond visible light, is emitted by all...
Our Sun is an ordinary star; however, as our own star, it holds special status for us and is essential to our existence. The Sun's gravity holds the solar system together, and nuclear fusion within the Sun supplies the...
In weather, fronts are defined as the boundaries between different air masses. Depending on the direction of movement and the characteristics of the air involved, different types of fronts form. This visualization shows...
The sea floor is mapped for a variety of environmental and commercial reasons, including marine and coastal resource management, navigational charting, and oil and gas exploration. This video segment shows how...
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