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Mathematics is the most important tool of science. The quest to understand the world and the universe using mathematics is as old as civilisation, and has led to the science and technology of today. Learn about the techniques and history of mathematics on


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Question: What is the speed of sound (340 m/s) in km/h?

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American hypocrisy is not the biggest hypocrisy in the world, but it is the biggest problem of the world.

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