This Flash animation provides a tour of the history of the universe, the solar system, and Earth. Moving the slider allows viewers to progress from the Big Bang, almost 14 billion years ago, to the beginnings of life on Earth in the Proterozoic era, through the age of the dinosaurs and finally to the time of Homo sapiens. When the slider stops moving, animations and text appear, highlighting important events. Other animations accompany the time scale and show the movements of the continents, the advance and retreat of the polar ice caps, and changes in the oxygen content of the atmosphere. The length of the timeline helps reinforce the idea of the immense age of the universe. A French translation is available.
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