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“Philosophy is written in this grand book, the universe, which stands continually open before our eyes… It is written in the language of mathematics.”
- Galileo Galilei
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The Aizawa attractor: It's a distinctive three-dimensional chaotic shape traced out by a system of three nonlinear differential equations with six parameters.
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In 1963, mathematician Stanislaw Ulam got bored during a meeting and started doodling a grid spiral of sequential numbers.
By highlighting only the primes, he uncovered what remains one of the most mesmerising visual mysteries in number theory: the Ulam Spiral.
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The oldest known use of zero. Found in an Indian inscription inside the Chaturbhuj Temple of the Gwalior fortress in Madhya Pradesh, India.
You see the "270" appearing on line 2, just right of centre.

