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Demonstrations 161  180 of 818
Length Scales in the Solar System
Collocation by Chi Square
Leonardo da Vinci's Ornithopter
Astronomical Clock
Equality of a Segment and an Arc in Archimedes's Spiral
Nicomedes's Mechanism for Constructing a Conchoid
Mechanism for Constructing Regular Polygons
Open and Closed Belt Drive
Primitive Pythagorean Triples on a Curvilinear Grid Defined by Euclid's Formula
World Energy: Electricity, Oil, and Gas
Galactic Coordinate System
Chebyshev Walking Machine
Coupler Curves of a FourBar Linkage
Lemniscate Plotting Device
Desk Lamp
Plotting Closed Curves with a Four Bar Linkage
Elliptical Drive
Archimedes' Approximation of Pi
Universal Sundial
Simulating a Water Wave Using a Cycloid
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