How To Use Octahedron In A Sentence
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The exception is an octahedron from another Peruvian mine, Quiruvilca (400 kilometers north of Huanzala).
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One specimen was covered with small rounded crystal-like projections, similar to cube and octahedron forms.
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These five remarkable solids - tetrahedron, cube, octahedron, dodecahedron, icosahedron - have faces that are congruent equilateral polygons.
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The octahedron can be made from four cards and an icosahedron with ten of them.
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With some speculating anacoustic vibe to others denying outright that very notion, Octahedron is likely to keep us in the press guessing until June 23rd, when once again the fans will have to comb through the pages of lyrics, dictionaries in hand, deciphering the codes and larger-than-life metaphors the The Mars Volta invariably weave into every album.
Buzzine » The Mars Volta
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While writing, I may choose a clear Quartz Crystal for clarity or a yellow Fluorite octahedron to help keep creative thoughts flowing.
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The cycle sum of the rotation group of the octahedron was calculated.
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The octahedron steel ingot and V - anvil forging bar can effectively prevent cracks in crystal boundary.
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The cube, consisting of six square faces, is a common form either alone or in combination with other forms, especially the octahedron.
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The iron atom in hæm compounds has its six covalences directed toward the six corners of an octahedron.
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This is not easy for me to contemplate and has troubled me for many years - I recall my reluctance to accept the theory that some trigons on a diamond octahedron were produced by dissolution.
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I saw that the cubes could be augmented to form a packing of rhombic dodecahedra, and these could be used in the augmenting the octahedron, and the original "rotating octahedra" transformation can also be modelled with rhombic
IMechanica - Comments
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Each "cigar" has a leaf-like body at its base, and in the centre of the octahedron is a globe containing four atoms, each within its own wall; these lie on the dividing lines of the faces, and each holds a pair of the funnels together.
Occult Chemistry Clairvoyant Observations on the Chemical Elements
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There is the octahedron, with 8 faces, 12 edges and 6 vertices.
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Unfortunately, analysis of the finite subgroups of SO (3) isn't so easy, and I don't know any easy way of showing why there should only be the five (or four, actually - symmetries of the cube and the octahedron are the same).
Citizendium, the Citizens' Compendium - Recent changes [en]
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These are often known as the Platonic solids: the tetrahedron, cube, octahedron, dodecahedron and icosahedron.
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Plato believed that atoms have the shapes of regular polyhedra: cubes, tetrahedrons, octahedrons, and so on.
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The cleaning layer has fully reticulated pores in a uniform network of substantially equilateral cells 34, such as tetrahedrons, truncated octahedrons and decahedrons.
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It is more interesting to me, for instance, to try and find out why the red oxide of copper, usually crystallizing in cubes or octahedrons, makes itself exquisitely, out of its cubes, into this red silk in one particular Cornish mine, than what are the absolutely necessary angles of the octahedron, which is its common form.
The Ethics of the Dust
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Water was an icosahedron, and air had to be an octahedron.
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The groundmass consists mainly of bytownite with large grains of diopside and of colourless olivine, and small octahedrons of magnetite.
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Earth was a cube, air an octahedron, fire a tetrahedron and water an icosahedron.
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A regular octahedron has faces that are all equilateral triangles.
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It involves placing the knot inside a plastic octahedron and mapping where the strands of the knot meet.
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Plato believed that atoms have the shapes of regular polyhedra: cubes, tetrahedrons, octahedrons, and so on.
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Theaetetus was the first to study the octahedron and the icosahedron and it is believed that Book XIII of Euclid's Elements is based on his work.
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Only five shapes fit the bill: the tetrahedron, the cube, the octahedron, the icosahedron and the dodecahedron, the quintet known as the Platonic solids since Plato wrote about them in the Timaeus.
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Plato believed that atoms have the shapes of regular polyhedra: cubes, tetrahedrons, octahedrons, and so on.
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Four more Archimedeans appear in the Short book on the five regular solids: the truncated cube, the truncated octahedron, the truncated icosahedron and the truncated dodecahedron.
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These five remarkable solids - tetrahedron, cube, octahedron, dodecahedron, icosahedron - have faces that are congruent equilateral polygons.
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A pyramid is not a Platonic solid because not all the sides are the same, but by sticking an inverted pyramid on the bottom you get an octahedron, which is.
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A diamond crystal is essentially two pyramids stuck together - an octahedron.
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For complex radicals of a certain type he put forward a steric theory - the octahedron theory - which predicted that certain of these compounds must occur in two stereoisomeric forms, a prediction which has been confirmed by experiment.
Nobel Prize in Chemistry 1913 - Presentation Speech
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“A tetragon that acts like an octahedron,” the Doctor said.
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Finally, the octahedron inscribed in the Venus-orbit sphere has itself an inscribed sphere, on which the orbit of Mercury lies.
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This six-point perspective, with the six vertices of an octahedron serving as the vanishing points, becomes the basis of his spherical paintings.
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Diamond is best known in octahedral crystals that can reach an amazing 6 cm; it also exhibits the cube, dodecahedron, and trisoctahedron.
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In particular he identified the five elements, fire, earth, air, water and celestial matter with the five regular solids, the tetrahedron, cube, octahedron, icosahedron and the dodecahedron.
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The one exception is the exciting accidental discovery of a 4.22-carat, gem-quality octahedron in Dale County, Alabama.
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It was a set of platonic bodies: there was an octahedron and a double tetrahedron.
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The unusual pieces (rhombuses and octahedrons) lend themselves to ‘outside the box‘creativity, while the pieces are easy to handle for even fumble-fingered types.
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When well-crystallized, it typically exhibits the cube form modified by the octahedron and dodecahedron; crystals to 20 cm across have been reported.
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These are often known as the Platonic solids: the tetrahedron, cube, octahedron, dodecahedron and icosahedron.
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Plato believed that atoms have the shapes of regular polyhedra: cubes, tetrahedrons, octahedrons, and so on.
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The two models in the top row are compounds of two decahedra each. The model in the bottom row left and right is a nonconvex octahedron, consisting of 4 squares and 4 triangles.
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A dodecahedron modified by the octahedron and cube from Nordmark, Sweden, is figured in Goldschmidt.
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In particular he identified the five elements, fire, earth, air, water and celestial matter with the five regular solids, the tetrahedron, cube, octahedron, icosahedron and the dodecahedron.
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Only five shapes fit the bill: the tetrahedron, the cube, the octahedron, the icosahedron and the dodecahedron, the quintet known as the Platonic solids since Plato wrote about them in the Timaeus.
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I'd like to mention in passing that the octahedron, the dual of the cube, also contains 26: 8 faces, 12 edges, 6 vertices.
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In particular he identified the five elements, fire, earth, air, water and celestial matter with the five regular solids, the tetrahedron, cube, octahedron, icosahedron and the dodecahedron.
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The tetrahedron was fire, the cube earth, the octahedron air, the icosahedron water and the dodecahedron the encompassing dome.
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