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Earth ScienceHistory of Earth's Atmosphere I
This module looks at how the Earth's atmosphere has changed since the planet came into...
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PhysicsThe Nature of Light
For centuries, controversy over whether light is made of particles or waves abounded. This module...
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BiologyTaxonomy I
Modern taxonomy officially began in 1758 with Systema Naturae, the classic work by Carolus Linnaeus....
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