Table of Contents
600.00 STRUCTURE
600.01 Definition: Structure
601.00 Pattern Conservation
604.00 Structural System
608.00 Stability: Necklace
608.10 Necklace Polygons and Necklace Polyhedra
608.20 Even- and Odd-Numebr Reduction of Necklace Polygons
608.23 Congruence with Mariner's Compass Rose
608.30 Triangle as Minimum-altitude Tetrahedron
609.00 Instability of Polyhedra from Polygons of More Than Three Sides
610.00 Triangulation
610.10 Structural Functions
610.20 Omnitriangular Symmetry: Three Prime Structural Systems
610.24 Limit Cases: Macro, Medio, and Micro
610.30 Structural Harmonics
611.00 Structural Quanta
612.00 Subtriangulation: Icosahedron
612.10 Units of Environment Control
613.00 Triangular Spiral Events Form Polyhedra
614.00 Triangle
615.00 Positive and Negative Triangulation of Cube and Vector Equilibrium
616.00 Surface Strength of Structures
617.00 Cube
618.00 Dimpling Effect
618.01 Definition
618.10 Tetrahedron
618.20 Octahedron
618.30 Icosahedron
620.00 Tetrahedron
621.00 Constant Properties of the Tetrahedron
621.10 Six Vectors Provide Minimum Stability
621.20 Tepee-Tripod
621.30 Camera Tripod
622.00 Polarization of Tetrahedron
622.10 Precessionally Polarized Symmetry
622.20 Dynamic Equilibrium of Poles of Tetrahedron
622.30 Spin Axis of Tetrahedron
623.00 Coordinate Symmetry
623.10 Cheese Tetrahedron
623.20 Size Comes to Zero
624.00 Inside-Outing of Tetrahedron
624.10 Inside Out by Moving One Vertex
625.00 Invisible Tetrahedron
625.10 Macro-Micro Invisible Tetrahedra
626.00 Operational Aspects of Tetrahedra
630.00 Antitetrahedron
631.00 Minimum of Four Points
632.00 Dynamic Symmetry of the Tetrahedron
633.00 Negative Tetrahedron
634.00 Irreversibility of Negative Tetrahedral Growth
635.00 Base-Extended Tetrahedron
636.00 Complementary to Vector Equilibrium
637.00 Star Tetrahedron
638.00 Pulsation of Antitetrahedra
638.10 Three Kinds of Inside-Outing
639.00 Propagation
640.00 Tension and Compression
640.10 Slenderness Ratio
640.20 Sphere: An Island of Compression
640.30 Precession and Critical Proximity
640.40 Wire Wheel
640.50 Mast in the Earth
640.60 Tensed Rope
641.00 High Tide and Low Tide
642.00 Functions
642.10 Tetrahedral Models of Functions
643.00 Tension and Compression: Summary
644.00 Limitless Ratios of Tension
645.00 Gravity
646.00 Chemical Bonds
646.10 Spherical Behavior of Gravity and Bonding
646.15 Circumferential Behavior of Gravity: Hammer Men and Closest Packing
647.00 Absolute Velocity: Shunting
648.00 Macrocosmic and Microcosmic
650.00 Structural Properties of Octet Truss
650.01 Rationale
650.10 Inherent Nonredundance
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Copyright © 1997 Estate of Buckminster Fuller
