Golf ball .STL

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Author name
CHRIS .capycoil
Source
Sketchfab
Polygon Count
116,764
Release Date
2021-04-29
License
CC BY-NC-SA 4.0
stlgolfsunflowermanifoldfibonaccifermatballgolden-angle

Asset Overview

**Golf ball with 400 dimples equally distributed on the surface of a sphere along Fermat spirals** with recorded sound of a real world golf ball d = 42.6 mm* (an STL file is unitless) **How to calculate the points** *let the number of points* **n ∈ ℕ** *thus each point* **i = { ½, 1½, ..., n-½ }** *lies in a spherical coordinate system* **pᵢ = ( r, θ, φ ) ] ∀ i** *at the constant radius* **r** *the polar angle* **θ = arccos( 2 ( i / n ) - 1 )** *and the azimuthal angle* **φ = i · ϕ** *with the golden ratio* **Φ = ( √ ̅5 + 1 ) / 2** *and the golden angle* **ϕ = 2π / Φ²** [cc by-sa 4.0](https://creativecommons.org/licenses/by-sa/4.0/) Chris Langhans 2021