Glass Flooring A German manufacturer of squash court floors has diversified into making glass floors for other sports, such as basketball. Their glass floors usually are translucent rather than transparent, and the line markings are indicated by illumination with LEDs below the floor. On occasion, transparent display cases are built into
Deer Fence In areas where such a tall fence is unsuitable (for example, on mountains subject to very high winds), deer may be excluded (or contained) by a fence of ordinary height (about 1.5 metres, four feet), with a smaller one of about one metre (three feet) high, about one metre
Types of mechanism Door : Hinged doors Most doors are hinged along one side to allow the door to pivot away from the doorway in one direction, but not the other. The axis of rotation is usually vertical. In some cases, such as hinged garage doors, the axis may be horizontal, above
A fence is a structure that encloses an area, typically outdoors, usually consisting of posts that are connected by boards, wire, rails or netting. A fence may be solid in appearance or construction, but differs from a wall in not having a solid foundation along its whole length. Alternatives to
Floating floors as used in sound studios can be either just larger versions of the domestic variety, or much larger constructions with slabs of concrete to keep the resonance frequency down. The manufacture of integrated circuits uses massive floating floors with hundreds of tons in weight of concrete to avoid
Design and Styles Door : There are many kinds of doors, with different purposes. The most common type is the single-leaf door, which consists of a single rigid panel that fills the doorway. There are many variations on this basic design, such as the double-leaf door or double door and
Spacecraft People have developed a variety of self-actuating, self-locking hinge designs for spacecraft deployable structures such as solar array panels, synthetic aperture radar antennas, booms, radiators, etc.
Metal whiskers Raised floors and other metal structures such as cable trays and ventilation ducts have caused many problems with zinc whiskers in the past, and likely are still present in many data centers. This happens when microscopic metallic filaments form on metals such as zinc or tin that protect many
Barbed Wire Typically four strands of barbed wire, with the lowest strand no more than 12 inches (300 mm) from the ground and the top strand at least 48 inches above the ground, make up a legal fence in the western United States. Better-quality fences have five strands, older fences often
A floating floor is a floor that does not need to be nailed or glued to the subfloor. The term floating floor refers to the installation method, but is often used synonymously with laminate flooring but is applied now to other coverings such as floating tile systems and vinyl flooring
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