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This is a very rare Modular Origami Polyhedral. I is a 7 out ten level difficulty. The yellow really radiates against the purple and dark blue

Original Platonic Icosahedron Polyhedron (Modular Origami)

頻道: YouTube

分類: 科技

標籤: Modular, Origami, Polyhedron, Polyhedral, Math, Geometry

2008-10-12, 1分:36秒

I first learned how to make a GSD in 2006 from a online diagram from origamee.net, I have since made many other modulars. I have been making...

The Great Stellated Dodecahedron (Modular Origami)

頻道: YouTube

分類: 科技

標籤: modular, origami, math, japan, art, crafts

2008-10-12, 0分:55秒

The apatatite structure can be viewed in terms of two types of Ca polyhedral chains (blue and yellow) connected together by phosphate groups...

Apatite Ca5(PO4)3(OH,Cl,F)

頻道: YouTube

分類: 科學

標籤: apatite, polyhedral, model

2007-11-27, 1分:40秒

3D Geometric Modular Origami Polyhedral The Bridge Between Math and Art!! This is Geodesic indeed!!

Original Platonic Icosahedron

頻道: YouTube

分類: 科學

標籤: 3D, Geometric, Origami, Polyhedral, Art, Math

5 點擊, 2008-2-3, 1分:09秒

polyhedral framework structure of feldspar MT4O8. The light and dark blue tetrahedra are T1 and T2. The purple spheres are the cation sites (K,...

General Feldspar structure

頻道: YouTube

分類: 科學

標籤: feldspar, polyhedral

2007-11-27, 1分:02秒

EnSight post processing of a Control Valve CFD problem. Solution made with StarCCM+ using polyhedral cells. Analysis of % volume of domain with a...

Control Valve Quantitatve Volume

頻道: YouTube

分類: 科技

標籤: ensight, CFD, StarCD, StarCCM+, polyhedral, post

2008-6-19, 0分:05秒

crystal structure of olivine Mg2SiO4-Fe2SiO4. Yellow octahedra are M1(opaque) and M2(translucent) sites Blue tetrahedra are occupied by Si4+

olivine structure

頻道: YouTube

分類: 科學

標籤: olivine, polyhedral, model

2007-11-27, 1分:07秒

Isostructural with corundum Al2O3. Fe3+ octahedra are brown. Individual gibbsite-like octahedral sheets (without the protons of course) are stack...

Hematite Fe2O3

頻道: YouTube

分類: 科學

標籤: hematite, polyhedral, model

12 點擊, 2007-11-26, 0分:35秒

structure of borax. Yellow octahedra are hexaaquo sodium ions that occur in edge-sharing chains, Boron (gray) is mixed tetrahedral/trigonal in...

borax Na2[B4O5(OH)4]·8H2O

頻道: YouTube

分類: 科學

標籤: borax, polyhedral, model

31 點擊, 2007-11-27, 0分:56秒

Enstatite (orthopyroxene) structure. Main features are ++--++-- octahedral stacking sequence and "collapsed" M2 site (compare with diopside movie)...

enstatite MgSiO3 (space group Pbca)

頻道: YouTube

分類: 科學

標籤: enstatite, polyhedral, model

13 點擊, 2007-11-28, 1分:30秒

calcium polyhedra are blue, sulfate tetrahedra are yellow. water molecules are indicated with a ball-and-stick representation. The stacked sheets...

gypsum CaSO4.2H2O

頻道: YouTube

分類: 科學

標籤: gypsum, polyhedral, model

2 點擊, 2007-11-27, 0分:37秒

Rutile consists of edge-sharing single chains of octahedra (contrast with the double chains in goethite). SiO2 adopts the rutile structure at...

Rutile TiO2

頻道: YouTube

分類: 科學

標籤: rutile, polyhedral, model

1 點擊, 2007-11-26, 0分:12秒

Perovskite structure. In silicate perovskite, MgSiO3, Si4+ occupies the opaque blue octahedra and Mg occupies the translucent polyhedra (nine-fold...

Perovskite CaTiO3

頻道: YouTube

分類: 科學

標籤: perovskite, polyhedral, model

1 點擊, 2007-11-26, 1分:15秒

Al octahedra are blue, Mg tetrahedra are yellow. Structure is a stacking of octahedral and mixed octahedral-tetrahedral sheets. Olivine Mg2SiO4...

Spinel Al2MgO4

頻道: YouTube

分類: 科學

標籤: spinel, polyhedral, model

2 點擊, 2007-11-26, 0分:28秒

The calcium ions are at the centers of the see-through cubes, and are coordinated by eight fluoride ions. Uraninite UO2 is isostructural with...

Fluorite CaF2

頻道: YouTube

分類: 科學

標籤: fluorite, polyhedral, model

6 點擊, 2007-11-27, 0分:56秒

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