Science Projects And Inventions

THE HANGING PENCIL

YOU NEED :

• A pencil that has metal on the eraser

• A plastic cup with opaque sides

• A small magnet

 

Hide a small magnet between your fingers and then turn the plastic cup upside down.

With the other hand insert the eraser end of the pencil into the cup.

The pencil should be placed on the side where the magnet is concealed. Now remove the hand that was

holding the pencil.

The pencil will continue to dangle. But you need to ensure that the magnet lies on the side of the cup

where it cannot be seen.

You can now remove the pencil and put the cup and the pencil on the table even as you surreptitiously remove

the magnet.

Those watching the trick are free top examine the cup and the pencil.

They will not be able to unravel the mystery. The cup can be replaced with a cardboard tube if required.

 

HOW DOES IT WORK?

The magnet attracts the metal band that hold's the eraser of the pencil. This keeps the pencil suspended.

The pull effect of the magnet goes through the plastic cup, and holds the pencil in place.


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