Post · bonfire.cafe

Today is Fibonacci Day. November 23 if written in MM/DD format recalls the #mathematician Leonardo Bonaccio of Pisa (c. 1170 - c. 1240 or 50) aka Fibonacci’s sequence (1,1,2,3…) where each number is the sum of the previous two. He used it to describe rabbit populations, but the sequence is commonly observed in nature, including in the spiral of a nautilus shell.🧵

#linocut #printmaking #mathematics #mathart #sciart #nautilus #GoldenRatio #GoldenSpiral #Fibonacci #fibonacciday2025 #FibonacciDay

mono print with my handprint in fuchsia at an angle, over printed with a vertical golden rectangle with golden spiral in black, such that it appears to trace the shape of my palm and spiral down to the fleshy part below my thumb

#fibonacciday2025 #goldenspiral #goldenratio #fibonacci #fibonacciday #mathematician #mathematics #nautilus #printmaking #linocut #mathart #sciart

Ele Willoughby, PhD

@minouette@spore.social · 5 months ago

The golden ratio is the limit of the ratio of consecutive numbers in this sequence and I have printed the golden rectangle on top of my hand print.

🧵2/2