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Environmental Science is the most important of all sciences. As the world enters a phase of climate change, unprecedented biodiversity loss, pollution and human population growth, the management of our environment is vital for our futures. Learn about Environmental Science on ScienceLibrary.info.

1901 - 1994

Linus Pauling is the only person in history to have won two unshared Nobel Prizes (Chemistry 1954, Peace 1962). He is considered one of the greatest scientists and humanitarians ever, and his fields of activity were widespread.

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The essence of mathematics is not to make simple things complicated, but to make complicated things simple.

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Luca Pacioli, 1454 - 1517, was an Italian mathematician and teacher, who published books in the Italian vernacular to popularise mathematics.

Luca Pacioli, 1454 - 1517, was an Italian mathematician and teacher, who published books in the Italian vernacular to popularise mathematics.

Pacioli was the teacher and then life-long friend of Leonardo da Vinci, who went on to provide sketches for his books. His mathematical works brought the work of previously little known mathematicians, such as Fibonacci, to a greater pubic awareness.

With Leonardo he explored the Golden Ratio, which led to its popularization in architecture and art. Leonardo was inspired by Pacioli to draw the famous 'Vitruvian Man' on the basis of the Golden Ratio as described by Vitruvius, the ancient Roman architect.

Pacioli developed and taught accounting, and popularised the techniques used at the time, which are still standard in companies around the world. For his presentation of the double-entry accounting technique he is often referred to as 'The Father of Accounting', although he probably did not actually invent it, as such.

He was also interested in mathematical applications to chess, magic tricks (including card tricks), probability, and art. At least two of his books had been lost and rediscovered only recently.

The story of Pacioli and Leonardo's extraordinary collaboration is recounted in Andrew Bone's 2010 novel 'Vitruvian Boy'.