30-Second Maths: The 50 Most Mind-Expanding Theories in by Richard J. Brown

By Richard J. Brown

From Rubik's cubes to Godel's incompleteness theorem, every thing mathematical defined, with color illustrations, in part a minute. Maths is having fun with a resurgence in reputation. So how will you keep away from being the one dinner visitor who has no inspiration who Fermat was once, or what he proved? The extra you recognize approximately Maths, the fewer of a technological know-how it turns into. 30 moment Maths takes the head 50 most tasty mathematical theories, and explains them to the final reader in part a minute, utilizing not anything greater than pages, two hundred phrases and one photograph. learn at your individual speed, and detect that maths may be extra attention-grabbing than you ever imagined.

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'[30-Second Maths] unveils the beauty of arithmetic, relating principles from the Mobius strip to infinity with transparent, wonderful and delightfully concise explanations.' -- New Scientist

About the Author

Richard Brown is Director of Undergraduate experiences on the division of arithmetic, Johns Hopkins University. 

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BRIAN CLEGG is the writer of Ten Billion Tomorrows, ultimate Frontier, additional Sensory, Gravity, find out how to construct a Time laptop, Armageddon technological know-how, sooner than the large Bang, improve Me, and The God impact between others. He holds a physics measure from Cambridge and has written common columns, good points, and stories for various magazines. He lives in Wiltshire, England, along with his spouse and young children.

Additional info for 30-Second Maths: The 50 Most Mind-Expanding Theories in Mathematics, Each Explained in Half a Minute

Sample text

Like music, art and language, the essential symbols and concepts of mathematics, many of which are defined and discussed in this book, allow us to express ourselves in amazingly intricate ways and to define unimaginably complex and beautiful structures. While the practical uses for mathematics are rife, what makes mathematics so magical is its elegance and beauty outside of any real application. We give the concepts in mathematics meaning only because they make sense and help us to order our existence.

In 628 CE, Brahmagupta wrote the first book that treats zero as a number rather than just a placeholder, giving rules for arithmetic using zero and negative numbers. Al-Khwarizmi introduced the Indian numeral system to the Islamic world in 820. Fibonacci introduced it to Europe in 1202 in Liber Abaci, popularizing the use of zero in Europe. Zero is the only real number that is neither positive nor negative, and any number that is not zero is called ‘non-zero’. , a + 0 = a, where a is any real number, adding zero to it leaves it unchanged.

In the animal kingdom, a honeybee has a Fibonacci number of ancestors in each generation. 3-SECOND SUM A simple rule, adding the two previous terms to get the next term, produces one of Mother Nature’s favourite sequences of numbers. 3-MINUTE ADDITION In 1202, Leonardo Pisano, also known as Fibonacci, posed a riddle about breeding rabbits in his book Liber Abaci (The Book of the Abacus). Fibonacci posited, perhaps unrealistically, that after every month, each pair of adult rabbits produces one pair of baby rabbits, and baby rabbits take one month to become adults.

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