Search results
Results from the WOW.Com Content Network
In mathematics, a self-similar object is exactly or approximately similar to a part of itself (i.e., the whole has the same shape as one or more of the parts). Many objects in the real world, such as coastlines , are statistically self-similar: parts of them show the same statistical properties at many scales. [ 2 ]
A-frame, the shape of a common structure that resembles the capital letter A; A-frame house, a common style of house construction; A-line skirt or dress; B-shape, the shape that resembles the capital letter B; C-shape, the shape that resembles the capital letter C; D-shape, the shape that resembles the capital letter D. D-ring
It is possible to fill the plane with polygons which do not meet at their corners, for example using rectangles, as in a brick wall pattern: this is not a proper tiling because corners lie part way along the edge of a neighbouring polygon. Similarly, in a proper honeycomb, there must be no edges or vertices lying part way along the face of a ...
The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are connected to one another. [1] The chemical bonding within the molecule is also shown, either explicitly or implicitly.
Related to the rule of odds is the observation that triangles are an aesthetically pleasing implied shape within an image. In a canonically attractive face, the mouth and eyes fall within the corners of the area of an equilateral triangle. [citation needed] Paul Cézanne successfully used triangles in his compositions of still lifes. A ...
In geometry, a space-filling polyhedron is a polyhedron that can be used to fill all of three-dimensional space via translations, rotations and/or reflections, where filling means that; taken together, all the instances of the polyhedron constitute a partition of three-space.
This occurs in a regular field effect transistor (the charge is moved over to a gate), or even at equilibrium in a High-electron-mobility transistor (you can see in the figure the channel is highly n-doped despite not having any dopants in the channel). Thus, showing dopant levels in this figure would seem to specialize it to the case of an ...
Secondary structure [4] [5] α-Helices Cylindrical spiral ribbons, with ribbon plane approximately following plane of peptides. β-Strands Arrows with thickness, about one-quarter as thick as they are wide, showing direction and twist of the strand from amino to carboxy end. β-sheets are seen as unified because neighboring strands twist in unison.