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// Types of Seashells: Bivalves, Gastropods & Ammonites
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Classroom Contents
The Shape of Shells
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- 1 // Introduction – Mathematics Meets Seashells
- 2 // Three Stories of the Seashell: Evolution, Development & Research
- 3 // Types of Seashells: Bivalves, Gastropods & Ammonites
- 4 // Spirals, Spines & Fractals in Nature
- 5 // The Logarithmic Spiral Explained
- 6 // Self-Similarity & the “Eternal” Spiral
- 7 // Building a Shell from a Spiral 2D to 3D Growth
- 8 // How Mollusks Actually Grow Shells
- 9 // Local Growth Rules: Expansion, Rotation & Twist
- 10 // Why Some Shells Twist Gastropods vs Ammonites
- 11 // How Spines Form: Growth Instability & Mismatch
- 12 // Ribbing in Ammonites & the Tug-of-War Model
- 13 // Expansion Rate vs Ribbing Buckman’s Law Explained
- 14 // Fractal Shells: The Mystery of Recursive Spines
- 15 // Fractals Across Nature: From Shells to Shark Teeth
- 16 // The Mathematical Rules Behind Biological Fractals
- 17 // Conclusion – The Beauty of Simple Mathematical Laws
