Clear Quartz Tetrahedron

Clear Quartz Tetrahedron
Clear Quartz Tetrahedron
Clear Quartz Tetrahedron

Clear Quartz Tetrahedron

The word tetrahedron is made up of two Greek words meaning four seats or bases, and a tetrahedron is a solid figure bounded by four equilateral triangles. To conjure up a picture of what this means we may say that a tetrahedron is a pyramid with three sides and a base, all of which are equal.

It has been said.…

width=24The world is now the shape of a globe, the shape which gives the biggest possible bulk for its surface, but the inside of the earth is still cooling and condensing, and the internal changes are slowly changing its shape. The surface, already condensed to its utmost, will not change with the core; it cannot reduce its area, but it adapts itself to the shrinking interior by taking a shape which occupies less bulk. So the earth is to become a tetrahedron, a sort of pyramid, the shape which gives the smallest bulk for its surface.
While the sphere is the figure occupying the greatest space, for a given surface, the tetrahedron occupies the least space for an equal surface, and therefore, mathematically, if the process described goes on, the earth should one day become a tetrahedron.width=24

A1054-CRVSU

Taiwan
(LxWxH) 4x4x33cm
26g (~1oz)
 Pyramid  Tetrahedron  Clear Quartz
A1054-CRVSU

Pyramid

A pyramid is any man-made structure where the upper surfaces are triangular and converge on one point. The base of a pyramid may be either quadrilateral or trilateral, meaning that a pyramid may have either three or four vertical sides, but all pyramids must have trilateral sides. The measurements of these triangles uniformly classify the shape as isosceles and sometimes equilateral.

A pyramid's design, with the majority of the weight closer to the ground, means that less material higher up on the pyramid will be pushing down from above. This allowed early civilizations to create monumental structures by basing the construction off of the mathematics of a pyramid. Indeed, for thousands of years, the by far the largest structures on Earth were pyramids: first the Red Pyramid in the Dashur Necropolis and then the Great Pyramid of Khufu, the only remaining Wonder of the World.

The largest terrestrial structures on earth, mountains, are fundamentally pyramidal in shape. This is because the pressure exerted on the base of a rectangular or cube-shaped structure is much higher than the pressure exerted on the base of a pyramid. On a cube, the center of gravity is centered. This means that the top half of a cube is just as massive as the bottom half, and so pressure is equally distributed. In a pyramid, the center of gravity is much lower, because the majority of the mass is toward the base and there is an exponential decay of mass higher up on the pyramid. Thus, it was not until the advent of modern building materials that cubic buildings were possible to build on the scale of pyramidal ones.


Tetrahedron

A tetrahedron (plural: tetrahedra) is a polyhedron composed of four triangular faces, three of which meet at each vertex. A regular tetrahedron is one in which the four triangles are regular, or "equilateral," and is one of the Platonic solids.



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