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Demonstrations 561  580 of 876
Collapsible Umbrella
Lightning
Greatest Planetary Elongation
Boiling Point of Water as a Function of Altitude
Da Vinci's Proof of the Pythagorean Theorem
Recovering the Purchase Price of Hybrid Vehicles in Fuel Savings
Scanning Electrochemical Microscopy: Fitting Rg with Negative Feedback Curve
Spherical Trigonometry on a Gnomonic Projection
Euclid, Book 3, Proposition 22
Triacontahedron Stellations
Eratosthenes's Measure of the Earth's Circumference
Country Interior: Two Solutions to the Nonconvex Polygon Interior Problem
Scanning Electrochemical Microscopy: Diffusion on a Microdisk Electrode
Basic Views in Technical Drawing
Scanning Electrochemical Microscopy: Feedback Approach Curve
SevenLetter Anagrams with HighFrequency Letters, Part 2
Feynman's Wobbling Plate
Motion of the Moon: Phases
Motion of the Moon: Eclipses
Pricing a Diamond
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