Short demo: The fan in a vacuum pushes air out, creating a system of low pressure. This in turn creates a system of low pressure within the bag, allowing for an entertaining demonstration of the power ...

This video reconstructs Pangaea, the massive supercontinent that existed around 200 million years ago, showing how today’s continents once fit together. It explains how plate tectonics shaped the ...

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Saint Louis University’s Department of Earth, Environmental and Geospatial Science combines strong classroom and field-based instruction with internationally recognized research. The department offers ...

This video reveals lost islands that existed during the last ice age when sea levels were over 120 meters lower, exposing vast new land across the oceans of the world. From expanded Galapagos islands ...

In a warm, humid forest clearing, the Tyrannosaurus rex was calmly chewing on the carcass of a duck-billed dinosaur, when a small white light appeared in the sky. The light grew larger and larger, ...