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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.
Although the magnetic stirrer has lately come to replace the shaker, it is still the preferred choice of equipment when dealing with large volume substances, when simultaneous agitation is required or when stirring bar could destroy delicate content like living cells. [1]
An agitator is a device or mechanism to put something into motion by shaking or stirring.There are several types of agitation machines, including washing machine agitators (which rotate back and forth) and magnetic agitators (which contain a magnetic bar rotating in a magnetic field).
In February 2017, [16] Smart and parent company PLDT signed a memorandum of understanding with China-based Huawei Technologies "to shape the strategic and commercial development of the 5G ecosystem in the Philippines". On April 21, 2017, Philippine President Rodrigo Duterte signed Republic Act No. 10926 which renewed Smart's license for another ...
Stirrer may refer to: Agitator, a general type of mechanical device; Magnetic stirrer, a laboratory device; Stirring rod, a simple laboratory tool; Stir stick, for stirring drinks; Stirring spoon, a type of spoon; Whisk or other kind of stirrer used in cooking; Mixer (appliance), a kitchen appliance
A hot plate or hotplate is a heated flat surface on a stove or electric cooker on which food may be cooked. [3] It comprises a heated top which is flat and usually circular, and may be made of metal, ceramic, or heat-resistant glass, with resistive wire forming a heating element fitted underneath and a thermostat to control the temperature.
[8] [9] [10] The Hobart Manufacturing Company was an early manufacturer of large commercial mixers, [11] and they say a new model introduced in 1914 played a key role in the mixer part of their business. [12] The Hobart KitchenAid and Sunbeam Mixmaster (first produced 1910) were two very early US brands of electric mixer. [9]
Magnetic induction B (also known as magnetic flux density) has the SI unit tesla [T or Wb/m 2]. [1] One tesla is equal to 10 4 gauss. Magnetic field drops off as the inverse cube of the distance ( 1 / distance 3 ) from a dipole source. Energy required to produce laboratory magnetic fields increases with the square of magnetic field. [2]