MAGNETIC LEVITATION - ANTI GRAVITY PENCIL

ANTI GRAVITY MAGNETIC LEVITATION

Magnetic Levitation is a way to suspend objects in air without any support, as if in defiance of gravity. An unsung phenomenon of the past which is now being put to use in a variety of interesting and useful applications.

Magnetic levitation, maglev,

or magnetic suspension is a method by which an object is suspended with no support

other than magnetic fields. Magnetic force is used to

counteract the effects of the gravitational acceleration and any

other acceleration.

The two primary issues involved in magnetic levitation

are lifting forces: providing an upward force sufficient to

counteract gravity, and stability: ensuring that the system does

not spontaneously slide or flip into a configuration where the

lift is neutralized.

Magnetic levitation is used for maglev trains, contactless melting, and magnetic bearings and for product

display purposes.

Maglev is short for Magnetic Levitation in which trains float on a guide way using the principle

of magnetic repulsion. Each magnet has two poles. Now if you play with two magnets, you'll realize that

opposite poles attract, whereas similar poles repel. This repulsive property of magnets is used

in Maglev Levitation as well as in Maglev trains.

HOW IT WORKS

In this project the magnets are spaced an equal distance apart and have

the same polarity facing up. We have arranged the ring magnets in such

a way that repel each other.

One magnet is placed onto the pen so that they are the same distance

apart. We have attached a small metal board card at the tip of the pen

so the pen point can rest against it.

Blow the Fan blade and it spun like crazy! And pen floats in the air.

EXPLANATION:

All magnets, whether natural or electromagnets, have two poles. We all known

that like poles repel and unlike poles attract. Magnetic levitation is the product of the repulsion

generated as a result of two magnetic fields. An object is said to be levitated when the force

created by electromagnetic repulsion equalizes the weight of the object. Technically, it's the

electromagnetic force counteracting the gravitational force

Attraction & Repulsion of Magnets , These principles govern the levitation of maglev trains. Permanent

magnets are always magnetic. Electromagnets are magnetic only when an electric current flows through

them.

As a child you must have seen a ping pong ball being levitated on an air stream at the output pipe of a

vacuum cleaner. Magnetic levitation, also known as maglev is used in a similar way to levitate objects in air

without any support, using magnetic field.

Magnetic levitation is the use of magnetic fields to levitate a (usually) metallic object. Manipulating

magnetic fields and controlling their forces can levitate an object. In this process an object is suspended

above another with no other support but magnetic fields.

The electromagnetic force is used to counteract the effects of gravitation. But it has also been proved that it

is not possible to levitate using static, macroscopic, `classical' electromagnetic fields.

The forces acting on an object in any combination of gravitational, electrostatic, and magnetostatic fields

will make the object's position unstable. The reason a permanent magnet suspended above another

magnet is unstable is because the levitated magnet will easily overturn and the force will become attractive.

If the levitated magnet is rotated, the gyroscopic forces can prevent the magnet from overturning.

PRESENT AND FUTURE USE

Maglev train is a famous application of the maglev technology . Almost all the prominent countries have

these trains as a major mode of transport in their system. Apart from this, maglev toys are also quite

famous and are available in all the markets. Some of the famous maglev toys are maglev toy train, maglev

toy cars, maglev clocks etc.

Future might see maglev technology put to use in a variety of applications. Maglev cars are supposed to be

under development. These cars won’t require a track but would fly in air. NASA is working on a maglev

catapult that is predicted to reduce the costs and launching problems of a spacecraft. Also, Maglev

elevators are already made and soon be put to use in Japan and China.

Magnetic Levitation is a way to suspend objects in air without any support, as if in defiance of gravity. An

unsung phenomenon of the past which is now being put to use in a variety of interesting and useful

applications.

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