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Baseboard, "base moulding" or "skirting board": Used to conceal the junction of an interior wall and floor, to protect the wall from impacts and to add decorative features. A "speed base" makes use of a base "cap moulding" set on top of a plain 1" thick board, however there are hundreds of baseboard profiles. Baton: See Torus
In architecture, a baseboard (also called skirting board, skirting, wainscoting, mopboard, trim, floor molding, or base molding) is usually wooden, MDF or vinyl board covering the lowest part of an interior wall. Its purpose is to cover the joint between the wall surface and the floor.
skirting board In architecture , the dado is the lower part of a wall, [ 1 ] below the dado rail and above the skirting board . The word is borrowed from Italian meaning "dice" or "cube", [ 2 ] and refers to " die ", an architectural term for the middle section of a pedestal or plinth .
A g-holed toroid can be seen as approximating the surface of a torus having a topological genus, g, of 1 or greater. The Euler characteristic χ of a g holed toroid is 2(1-g). [2] The torus is an example of a toroid, which is the surface of a doughnut. Doughnuts are an example of a solid torus created by rotating a disk, and are not toroids.
A special case of a toric section is the spiric section, in which the intersecting plane is parallel to the rotational symmetry axis of the torus. They were discovered by the ancient Greek geometer Perseus in roughly 150 BC. [2] Well-known examples include the hippopede and the Cassini oval and their relatives, such as the lemniscate of Bernoulli.
The core and primary winding are represented by the gray-brown torus. The primary winding is not shown, but the current in the winding at the cross-section surface is shown as gold (or orange) ellipses. The B field caused by the primary current is confined to the region enclosed by the primary winding (i.e. the core).
For example, if is the identity map (i.e., the map which fixes every point of the torus) then the resulting torus bundle () is the three-torus: the Cartesian product of three circles. Seeing the possible kinds of torus bundles in more detail requires an understanding of William Thurston's geometrization program.
Torus theorem: If T is one fixed maximal torus in G, then every element of G is conjugate to an element of T. This theorem has the following consequences: All maximal tori in G are conjugate. [3] All maximal tori have the same dimension, known as the rank of G. A maximal torus in G is a maximal abelian subgroup, but the converse need not hold. [4]