How to use tetrahedron in a sentence

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Sentence Examples Quartz crystals are silicon atoms surrounded by a tetrahedron of oxygen atoms linked at shared corners. Such a solid is sometimes called a Heronian tetrahedron or a perfect pyramid. If each face is an equilateral triangle, the result is a regular tetrahedron, one of the five Platonic solids. The silica tetrahedra may also form a sheet structure where three oxygen atoms of each tetrahedron are shared by adjacent tetrahedra. Now fold, crease, decorate, and glue your decahedron, following the same hints given on the tetrahedron page. The strongest and most stable molecular structure is the three-dimensional tetrahedron, the configuration achieved with silicates. Earth was a cube, air an octahedron, fire a tetrahedron and water an icosahedron. The tetrahedrite crystal on this specimen is a simple tetrahedron with very smooth, clean crystal faces and a bright, shiny metallic gray color. The four C-H bonds are directed towards the four corners of a tetrahedron, with carbon at its center and hydrogens at each vertex. A triangular pyramid, or tetrahedron, has a triangular base and four faces, counting the bottom. With his geodesic dome, Fuller began to express a favorite geometric shape of his, the tetrahedron, and he put it everywhere he could. A special rod, which is fixed to the sensor and carries the tetrahedron, allows quick movement into the various measurement positions. It should be noted that they are similar two by two but that they can never be similar to the initial tetrahedron. Before the 19th century, no model is known but the old Russian whistles near Moscow had the same typic tetrahedron shape. He assigned the tetrahedron to fire, because the tetrahedron is the regular solid with the sharpest angles, and because fire is the most penetrating of elements. All the other shapes you find in nature are only transformable states of the tetrahedron. Earth was associated with the cube, air with the octahedron, water with the icosahedron, and fire with the tetrahedron. They will then fly in formation at the four corners of a tetrahedron with edges several hundred kilometres long. They could have been building a tetrahedron, like pyramid thus, but with a triangular base. It takes all four sides to make the tetrahedron and each determines the limits of the others. Show More Sentences The tetrahedron, composed of 4 faces made of equilateral triangles, is associated to the fire. Because it can be seen for miles around, the tetrahedron has become a landmark for the people of the region and its visitors. Based on the didactic tetrahedron, we carry out research projects and assignments for third parties. A tetrahedron has four faces, so each net consists of four equilateral triangles attached along their edges. The sensor measures the side edges of this tetrahedron and from these values calculates the centre of the reflector on the apex. The Enterprise Day at Joseph Rowntree School also involved representatives from The Institute Of Civil Engineers who built a giant tetrahedron with their young charges. Simple binuclear and trinuclear complexes form linear and trigonal arrangements but a tetranuclear complex can occur as a tetrahedron or a cubane structure. All basalt chemical compositions can be plotted in the basalt tetrahedron, which has normative quartz, olivine, nepheline and augite at the apices. In the present paper an attempt is made to find for the tetrahedron the analogues of the circles of Apollonius of the triangle. He further explains that earth is a cube, fire a tetrahedron, air an octahedron, and water an icosahedron. They can therefore never have the same quality as the initial tetrahedron. The tendons now form the edges of a slightly distorted truncated tetrahedron. How many faces are there on the triangular pyramid known as a regular tetrahedron? A blast gauge comprising a spherical fairing containing four pressure sensors whose positions on the surface of the sphere form the apices of a tetrahedron. The carbonyl ligands in the tetracarbonylnickel molecule project toward the vertices of a tetrahedron, and thus the structure is referred to as tetrahedral. When Cluster II passes through these so-called polar cusps, instruments on board each of its satellites will measure the magnetic field, electrical current and number of charged particles within the tetrahedron. Other evidence suggests he may have only been familiar with the tetrahedron, cube, and dodecahedron, and that the discovery of the octahedron and icosahedron belong to Theaetetus, a contemporary of Plato. Three, the tetrahedron, octahedron and icosahedron, have triangular faces. A 3-simplex is usually called a tetrahedron, and the 4-simplex, which is the basic building block in this theory, is also known as the pentatope, or pentachoron. Geometrically, K3 relates to a triangle, K4 a tetrahedron, K5 a pentachoron, etc. Show More Sentences Each of the four oxygen anions is, in turn, shared with another silica or alumina tetrahedron, extending the lattice structure in three dimensions. Each lepton group represents the binary rotational symmetries of familiar 3-D regular polyhedrons, the tetrahedron, the octahedron, and the icosahedron. Ubukata, 2000, Vatikanol D, a Novel Resveratrol Hexamer Isolated from Vatica rassak, Tetrahedron Lett. Gallic acid was a gift sample from Tetrahedron, Chennai, India. Examples from Classical Literature These give the solid angles of the tetrahedron, the octahedron and the icosahedron. From the sides of the hollow square sprang long arms of spheres, each tipped by a tetrahedron. It occurs crystallized in the form of the tetrahedron, also massive and disseminated. There were characters in Nansalese at each point of the tetrahedron, and other characters engraved in a circle around it. It is not difficult for a class to find the relative areas of the cube and the inscribed tetrahedron and octahedron. Each of the four depressed areas forms a side of our tetrahedron and is occupied by an ocean. A scalene triangle abc might also be employed, or a tetrahedron. The tetrahedron, having four equilateral triangles as faces. In our exposition T can be a triangle or rectangle, or a tetrahedron, a hexahedron, or a prismatic pentahedron. At the vertices of a regular tetrahedron may be found such points. Many are obviously related to guns, such as AR500-Targets, which makes a metal target that is the shape of a tetrahedron, like a medieval caltrop. Because of the influence of the jetting outlet, regular hexahedron grid is not easy to acquire, so a tetrahedron grid is carried out as shown in Fig. A tetrahedron, for example, has four triangular faces and four vertices. Find more words! 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Words that rhyme with tetrahedron What is the plural of tetrahedron? What is the adverb for tetrahedron? What is the adjective for tetrahedron? What is the noun for tetrahedron? Use our Sentence Generator Nearby Words tetrahedrite tetrahedrally tetrahedral tetrahedra Tetragrammaton tetragonal tetrahedrons tetrahydrocannabinol tetrahydrofuran tetralogy tetramer tetrameric 11-letter Words Starting With t te tet tetr tetra tetrah tetrahe tetrahed tetrahedr tetrahedro