概述
Conic Section Collection
内容目录
General
- Conic sections
- Conic Sections: Plane Intersecting Double Cone
- Conic sections animated
- Animations of Conic Sections
- Conical in the cone
- General Geometric Definition - Cases
- Solstice Shadow - Mt. Auburn Cemetery
- General Geometric Definition - Eccentricity
- Dandelin spheres
- Video - Dandelin Spheres
- Dandelin Spheres - Interactive
- Five-point conic
- Conic through five random points
- Video - Conic Sections - Pizza dough
- Video - Vi Hart - Connecting Dots
- Video - Shadow Conics
- Video - Peristrofographs & Nimagraphs
- Pascal's Theorem
- Locus of between two points
- Around Cone Mountain puzzle
- Shadows of a stick in the ground
- Rolling Parabola
- Rolling Conic Sections
- 5-point conic spinning tangents
- Circle Tangents
- Balls Bouncing in Conics (some with gravity, some without)
Parabolas
- Parabola - Geometric Definition I
- Parabola - Geometric Definition II
- Parabola reflection
- Parabola reflection - light bulb
- Parabolic reflector / antenne parabolique
- Parabolas in Real Life - Lights
- Parabolas in Real Life - Satellite Dishes
- Parabolas in Real Life - Solar Furnaces and Buildings that Unintentionally Burn Things
- Parabolas in Real Life - Parabolic Microphones
- Parabola - Hologram
- Parabola - derivation & example problems
- All Parabolas are similar?
- Video - Circular Parabola?
Circles/Ellipses
- Ellipse - Geometric Definition
- Ellipse - Graph & Equations
- Ellipse in a Circle Locus
- Ellipse reflections
- Ellipse - Many Reflections
- Ellipses in Real Life - Whispering Gallery
- Ellipses in Real Life - Lithotripter
- Ellipses in Real Life - Pool for Dummies
- Ellipses in Real Life - Orbits
- Video - Machines Drawing Ellipses
- Ellipse with tangent circles
- Ellipse with concentric circles
- Ellipse with concentric circles #2
- Ellipse - Points on moving circle
- Scissors for an ellipse
- Draw an ellipse by folding the circle
- Dandelin Spheres (how the various geometric definitions tie together!)
- Ellipse Tangents - Cool Property
- Rhombus inscribed in ellipse, circumscribing a circle
- Circle bounding a rectangle bounding an ellipse
- Random Polygon to Ellipse
- Moving Points
- Trammel of Archimedes
- Rotating Ellipses
Hyperbolas
- Hyperbola - Graph & Equations w/ asymptotes
- Hyperbola with a Circle Locus
- Hyperbola waves
- Hyperbola reflections
- Hyperbola Focus Proof
- Ruled Surface
- Hyperboloid Via Segments
- Video - Hyperboloids
- Circunferencias tangentes a 2 circunferencias exteriores
- Hyperbolas in Real Life - Gears and Reactors
- Hyperbolas in Real Life - Sonic Boom
- Hyperbolas in Real Life - Pencils and Lamps
- Hyperbolas in Real Life - LORAN Navigation
- Hyperbolas in Real Life - Reflecting Telescopes
- Rotating Lines
- Triangle formed by a hyperbola's tangent and asymptotes
Intersections with non-cones