magnetic stirrer मीनिंग इन हिंदी

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Ferroin, a beaker using a magnetic stirrer.
Magnetic stirrers may also include a hot plate or some other means for heating the liquid.
Some hot plates also contain a magnetic stirrer, allowing the heated liquid to be stirred automatically.
Using glass beads or a magnetic stirrer or carefully warming to 37 degrees C may help in dissolving.
The first multi-point magnetic stirrer was developed and patented by Salvador Bonet of SBS Company in 1977.
The limited size of the bar means that magnetic stirrers can only be used for relatively small experiments, of 4 liters or less.
Magnetic stirrers are often used in chemistry and biology, where they can be used inside hermetically closed vessels or systems, without the need for complicated rotary seals.
Arthur Rosinger of Newark, New Jersey, U . S . A . obtained US Patent 2, 350, 534, titled Magnetic Stirrer on 6 June 1944, having filed an application therefore on 5 October 1942.
The sits are usually made of a chemically impervious metal and may be covered with aluminium foil to further protect the base, on which may sit a hot plate, magnetic stirrer, heating mantle, or some other apparatus.
A "'magnetic stirrer "'or "'magnetic mixer "'is a laboratory device that employs a rotating magnetic field to cause a stir bar ( also called " flea " ) immersed in a liquid to spin very quickly, thus stirring it.