Fibonacci

math · patterns · nature

The Fibonacci Sequence. Fibonacci discovered a sequence where each number is the sum of the two numbers before it, like this: 1, 1, 2, 3, 5, 8, 13, 21. It's named after him and pops up in spiraling shells, flower petals, and even galaxies.

The Rabbit Problem. Fibonacci first wrote about this pattern while solving a puzzle about how quickly rabbits could multiply. The answer turned out to be the famous sequence itself.

Medieval Genius. Living in the 1100s and 1200s, Fibonacci was considered the greatest mathematician of the Middle Ages in Europe. He helped bring new math ideas from the Arab world back to Italy.

Nature's Hidden Math. The Fibonacci sequence appears in sunflower seeds, pinecones, pineapples, and the way tree branches grow. It's like nature's secret blueprint for arranging things beautifully and efficiently.

From Pisa to the World. Fibonacci was born in Pisa, Italy, and wrote a famous book called the Liber Abaci that changed how Europeans did math. His work helped spread the Hindu-Arabic number system (our modern numbers) across Europe.