The Fibonacci Sequence: The Strangest Pattern in the History of Life

Hey guys! We’re now live on Spotify🎧 Listen here: https://open.spotify.com/show/5rqQFYdoSPWZ0QLQp27Rmj?si=nLAoFdo5SoSqJ7QoN3eUQQ The Sundown Archive holds the strangest scientific truths, laid out one at a time, meant to be read in a single long sitting. Get comfortable. Get the book: https://publy.store/t/wbpca93 Count the spirals on a ripe sunflower and you will usually find 34 and 55, neighbours in the Fibonacci sequence. No plant can count, yet more than nine in ten spiral plants carry these numbers, and one of Earth's first leafy plants mostly did not. So why is it everywhere? Tonight we drift from a stone in a Scottish field wall to Alan Turing's unfinished work, a growing tip smaller than a pinhead, and spirals forming in a dish of oil where nothing has ever grown. Get cozy and let this slow walk through the strangest pattern in living things keep you company tonight. Subscribe to Sundown Science if you enjoy taking the long way around the natural world. CHAPTERS 0:00 Introduction 1:28 The Stone in the Field Wall 11:58 The Numbers Hiding in a Sunflower 22:20 Four Thousand Pinecones 32:14 The People Who Counted Leaves 42:31 Where the Others Are Not 53:14 The Codebreaker Who Watched the Daisies 1:04:02 Putting the Pieces Together 1:12:26 The Hormone That Draws the Spiral 1:23:49 Before the Pattern Began 1:34:57 The Sunflowers That Broke the Rule 1:45:30 Spirals With No Gardener 1:55:44 Why It Is Everywhere SOURCES Leaves and sporangia in rare non-Fibonacci spirals in early leafy plants (Science, 2023) — https://www.eurekalert.org/news-releases/992795 Fossil study sheds light on famous spirals found in nature (University of Edinburgh) — https://www.ed.ac.uk/node/147249 400-million-year-old fossil upends our understanding of Fibonacci spirals (ScienceAlert) — https://www.sciencealert.com/400-million-year-old-fossil-upends-our-understanding-of-fibonacci-spirals-in-nature The Rhynie chert: the early days (University of Aberdeen) — https://www.abdn.ac.uk/rhynie/history.htm Turing's Sunflowers: growing Alan Turing's legacy (University of Manchester, 2016) — https://www.manchester.ac.uk/discover/news/turings-sunflowers-growing-alan-turings-legacy Novel Fibonacci and non-Fibonacci structure in the sunflower (Royal Society Open Science, 2016) — https://e-space.mmu.ac.uk/628159 Brousseau, Fibonacci spirals in California pinecones (Fibonacci Quarterly, 1969) — https://www.mathstat.dal.ca/FQ/Scanned/7-5/brousseau1.pdf Regulation of phyllotaxis by polar auxin transport (Nature, 2003) — https://research-explorer.ista.ac.at/record/2994 A plausible model of phyllotaxis (PNAS, 2006) — https://www.algorithmicbotany.org/papers/phyllo.pnas2006.pdf Phyllotaxis: is the golden angle optimal for light capture? (New Phytologist, 2020) — https://algorithmicbotany.org/papers/Strauss2019pit.html Where does the shape of the Romanesco cauliflower come from? (CNRS, 2021) — https://www.cnrs.fr/en/where-does-shape-romanesco-cauliflower-come Magnetic cactus demonstrates mathematical plant patterns (Physical Review Letters, 2009) — https://phys.org/news/2009-05-magnetic-cactus-experimentally-mathematical-patterns.amp Turing, Richards and Morphogenesis (The Rutherford Journal) — https://museum.cs.auckland.ac.nz/rutherfordjournal/article010109.html Available space theory: Hofmeister and the Snows — https://en.wikipedia.org/wiki/Available_space_theory — Disclaimer: All videos are produced for entertainment and education. Factual claims are sourced from peer-reviewed research and official scientific institutions. Where a video explores speculation, fringe theories, or the creator's own analysis, it is clearly labeled as such. Sundown Science is not a news outlet. Watch at your own discretion. IMAGE SOURCES Wikimedia Commons: https://commons.wikimedia.org #FibonacciSequence #Phyllotaxis