Is there any other method of stereotyping?

Yes; that known as the paper process. A uniform sheet of soft matter
is formed by pasting together sheets of thin, tough tissue paper. The
types are oiled, and the soft, moist sheet is placed on them and
beaten down with a stiff brush until it receives an impression of the
type-form. Both are then run through a press, and on being taken out
the paper is found to form a perfect mould. Into this mould the
type-metal is poured and the plate formed.


Can you tell me some magnetic effects of the current?

All conductors become magnetic during the passage of a current through
them, and thereby acquire all the properties of a magnet. There are
bodies which are natural magnets, and they are called permanent
magnets. Those which become magnets only during the passage of a
current are called electro-magnets.


Do you know any application of those magnets?

They are employed in a great variety of electrical apparatus,
principally in telegraphy.


When was the first telegraph established?