Magnetic Stirrer!
A magnetic stirrer or mixer is a laboratory device that employs a rotating magnetic field to cause a stir bar immersed in a liquid to spin quickly, thus stirring it!
The said magnetic field works either by rotating a magnet or using a set of stationary electromagnets which are placed beneath the vessel harboring the liquid.
They work well in glass vessels commonly used for chemical reactions as glass does not affect a magnetic field.
The limited size of the bars means that they can be used for small experiments, of says 4 liters or less. They also are difficult for usage in thick suspensions.
Magnetic stirrers are better than gear driven motorized stirrers as they are quieter and more efficient!
They often find applications in chemistry or biology and can be used inside hermetically closed vessels or systems. #LaboratoryInstrument #MagneticStirrer
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