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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: A falling object accelerates at about 10 m/s2 if we ignore air resistance. How fast do you have to throw a ball upwards for it to take 3 seconds before you catch it again?

Go to the article about: Gravity and freefall

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Quote of the day...

Newton was not the first of the age of reason: He was the last of the magicians.

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