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A window screen (also known as insect screen, bug screen, fly screen, flywire, wire mesh, or window net) is designed to cover the opening of a window. It is usually a mesh made of metal, fibreglass , plastic wire, or other pieces of plastic and stretched in a frame of wood or metal.
The chain fountain phenomenon, also known as the self-siphoning beads, Mould effect, or Newton beads is a physical phenomenon observed with a chain placed inside a jar. One end of the chain is pulled from the jar and is allowed to fall under the influence of gravity .
Beads are usually cut directly into the edge of the item to which the bead is being applied. However, beads applied across the grain are usually cut into a separate piece, which is then fixed in position. A bead is also an important design element in wood turning, a ring-shape or convex curve incised into a piece by the use of a chisel or skew. [3]
A typical commercial air curtain enclosure. In North America, the more commonly-used term for an air door is "air curtain". The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) defines an air door as follows: "In its simplest application, an air curtain is a continuous broad stream of air circulated across a doorway of a conditioned space.
The Scenopinidae or window flies are a small (about 400 described species) [1] family of flies (Diptera), distributed worldwide. In buildings, they are often taken at windows, hence the common name window flies.
The three-panel fire screen, which covers the fireplace almost completely, has two side panels angled away from the central panel. It is an effective way of providing decoration in a room. The horse screen, or cheval screen (cheval is the French word for horse) was in common use from the 18th century. It is a wide screen having two feet on each ...
The screen-door effect (SDE) is a visual artifact of displays, where the fine lines separating pixels (or subpixels) become visible in the displayed image. This effect can be seen in digital projector images and regular displays under magnification or at close range, but the increases in display resolutions have made this much less significant.
The installation of platform screen doors in Hong Kong has been effective in reducing railway injuries and service disruptions. [50] The then-longest set of platform screen doors in the world can be found in East Tsim Sha Tsui station, where it first served the East Rail line when 12-car MLR trains were still in service. [51]