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2. Static grass - Wikipedia

   en.wikipedia.org/wiki/Static_grass

   Static grass consists of man-made fibres selected for their ability to hold a static electric charge. They are usually a blend of coloured nylon, rayon, or polyester fibres that are used to more realistically replicate grass on a modeller's layout. The fibres are usually sold by weight in 2, 4, 6, 10 and 12 millimetre lengths, although fibres ...

3. Mesh (scale) - Wikipedia

   en.wikipedia.org/wiki/Mesh_(scale)

   Although such information contains long lists of sieve sizes, in practice sieves are normally used in series in which each member sieve is selected to pass particles approximately 1/ √ 2 smaller in diameter or 1/2 smaller in cross-sectional area than the previous sieve. For example the series 80mm, 63, 40, 31.5, 20, 16, 14, 10, 8, 6.3, 4, 2.8 ...

4. Sieve analysis - Wikipedia

   en.wikipedia.org/wiki/Sieve_analysis

   A sieve analysis (or gradation test) is a practice or procedure used in geology, civil engineering, [1] and chemical engineering [2] to assess the particle size distribution (also called gradation) of a granular material by allowing the material to pass through a series of sieves of progressively smaller mesh size and weighing the amount of material that is stopped by each sieve as a fraction ...

5. Window screen - Wikipedia

   en.wikipedia.org/wiki/Window_screen

   The 6.4 mm (1 ⁄ 4 in) and 7.9 mm (5 ⁄ 16 in) sizes are generally used for single hung windows, while the two larger sizes are used for double hung windows. As 9.5 mm (3 ⁄ 8 in) is not a common size, the 7.9 mm (5 ⁄ 16 in) thickness may be used instead and shimmed as needed. They come in a variety of colors including unpainted, white ...

6. Tyler State Park (Pennsylvania) - Wikipedia

   en.wikipedia.org/wiki/Tyler_State_Park...

   Tyler State Park is a day-use Pennsylvania state park on 1,711 acres (692 ha) in Newtown and Northampton Townships, Bucks County, Pennsylvania, United States. [2]Park roads, trails, and facilities are nestled within the original farm and woodland setting.

7. Screen filter - Wikipedia

   en.wikipedia.org/wiki/Screen_filter

   A screen filter is a type of water purification using a rigid or flexible screen to separate sand and other fine particles out of water for irrigation or industrial applications. [1] These are generally not recommended for filtering out organic matter such as algae , since these types of contaminants can be extruded into spaghetti -like strings ...