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Quick Quiz

The amplitude of a wave is a measure of its

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Module of the day

The Practice of Science

Scientists use multiple methods to investigate the natural world and these interconnect and overlap, often with unexpected results. This module gives…

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Term of the day


[person] Greek philosopher born in Acragas (490-430 BCE). He is credited (by Aristotle) with inventing rhetoric, and by the philosopher Galen with…

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