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A typical kitchen funnel A ceramic Roman kitchen funnel (1st–3rd century AD) A funnel is a tube or pipe that is wide at the top and narrow at the bottom, used for guiding liquid or powder into a small opening. [1] [2] Funnels are usually made of stainless steel, aluminium, glass, or plastic. The material used in its construction should be ...
A funnel for hot filtration Two funnels, A - a simple stemmed funnel. B - a ground glass powder funnel. Plain funnels exist in various dimensions, with longer or shorter necks. Filter funnels have a neck of a thin capillary tube and ribs which increase the filter-papers' effectiveness and thus accelerate the process of filtering. [1]
A Büchner funnel with a sintered glass disc. A Büchner funnel is a piece of laboratory equipment used in filtration. [1] It is traditionally made of porcelain, but glass and plastic funnels are also available. On top of the funnel-shaped part there is a cylinder with a fritted glass disc/perforated
A filter funnel is a laboratory funnel used for separating solids from liquids via the laboratory process of filtering. [ 1 ] In order to achieve this, a cone-like shaped piece of filter paper is usually folded into a cone and placed within the funnel.
4 Companies with a large presence in Houston. 5 Further reading. 6 References. ... Fortune 500 companies based in Houston [1] Rank Company name 12: ExxonMobil: 48 ...
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Houston (/ ˈ h juː s t ən / ⓘ HEW-stən) is the most populous city in the U.S. state of Texas and the Southern United States.Located in Southeast Texas near Galveston Bay and the Gulf of Mexico, it is the seat of Harris County; as well as the principal city of the Greater Houston metropolitan area, the fifth-most populous metropolitan statistical area in the United States and the second ...
A Berlese funnel or Berlese trap is a device used to extract desiccation-intolerant invertebrates from samples of soil or leaf litter. It works by creating a desiccation gradient over the sample such that mobile organisms will move away from the dry environment and fall into a collecting vessel, where they are preserved for examination.
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