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Demonstrations 21  40 of 164
Dudeney's Proof of the Pythagorean Theorem
Fundamental Theorem of Arithmetic
Gridiron Pendulum
Motion of Pendulum with Varying Length
Leonardo da Vinci's Ornithopter
Equality of a Segment and an Arc in Archimedes's Spiral
Nicomedes's Mechanism for Constructing a Conchoid
Primitive Pythagorean Triples on a Curvilinear Grid Defined by Euclid's Formula
World Energy: Electricity, Oil, and Gas
Archimedes' Approximation of Pi
Antikythera Mechanism
Dynamically Updated Probabilistic Galton Board
The Eratosthenes Machine for Finding the Cube Root of Two
Trisection by Sliding a Line
Pascal's Angle Trisection
Pascal's Barrel
FirstOrder Solution to GlassIce Stefan Problem
Crookes Radiometer: A Comedy of Errors
Hippopede of Eudoxus
Areas of the Lens and Two Lunes of Two Intersecting Circles
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