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On 5 July 2018, the city of Rio de Janeiro became the first state capital of Brazil to forbid the distribution of plastic straws, [79] [80] "forcing restaurants, coffee shops, bars and the like, beach huts and hawkers of the municipality to use and provide to its customers only biodegradable and/or recyclable paper straws individually".
Example of a stirring rod. A glass stirring rod, glass rod, stirring rod or stir rod is a piece of laboratory equipment used to mix chemicals. They are usually made of solid glass, about the thickness and slightly longer than a drinking straw, [clarification needed] with rounded ends.
Stirrer may refer to: Agitator, a general type of mechanical device; Magnetic stirrer, a laboratory device; Stirring rod, a simple laboratory tool;
A magnetic stirrer or magnetic mixer is a laboratory device that employs a rotating magnetic field to cause a stir bar (or flea) immersed in a liquid to spin very quickly, thus stirring it. The rotating field may be created either by a rotating magnet or a set of stationary electromagnets, placed beneath the vessel with the liquid.
Mechanically Fluidized Reactor (MFR): A mechanical stirrer is used to mobilize particles and achieve properties similar to that a well-mixed fluidized bed. It does not require fluidization gas. [7] Narrow fluidized beds (NFB): For this case, the ratio between the tube and the grain diameters is equal or less than around 10. The dynamics of the ...
A 5-inch (125 mm) square of wire gauze with ceramic center Using wire gauze with an alcohol burner Wire gauze or wire mesh is a gauze woven of metal wire, or very fine, gauze-like wire netting. Wire gauze is placed on the support ring that is attached to the retort stand between a burner and glassware , or is placed on a tripod to support ...