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A magnetic switchable device (often called a magnetic base) is a magnetic fixture that uses one or more permanent magnets in a configuration that allows the external field to be turned on or off. They are used in many applications including optics , metalworking , lifting , and robotics, to attach items to metal surfaces in a secure but ...
The body of the magnetic drill holds together the motor and the magnet base. The feed handle is also attached to the body. The body of the magnetic drill helps the motor slide on it to get an upward and downward feed. The body of the magnetic drill also plays the role of a handle to lift and move the machine from one place to other.
A polarization rotator is an optical device that rotates the polarization axis of a linearly polarized light beam by an angle of choice. Such devices can be based on the Faraday effect, on birefringence, or on total internal reflection. [1]
Representation of a magnetic latch configuration that can turn the external magnetic field ON and OFF by rotating one of the magnets. If we rotate one of the hard magnets (north pole point down), the iron U on top will see a north pole and a south pole. The other iron U will see exactly the opposite.
Michael Faraday holding a piece of glass of the type he used to demonstrate the effect of magnetism on polarization of light, c. 1857.. By 1845, it was known through the work of Augustin-Jean Fresnel, Étienne-Louis Malus, and others that different materials are able to modify the direction of polarization of light when appropriately oriented, [4] making polarized light a very powerful tool to ...
Fig. 1.—Arago's spinning disk Fig. 2.—Babagge and Herschel's experiment Fig. 3.—Slit disks used by Babbage and Herschel. Arago's rotations is an observable magnetic phenomenon that involves the interactions between a magnetized needle and a moving metal disk.