Element, Mathematical.
A very small part of anything, corresponding in a general way to a
differential, as the element of a current.
Element of a Battery Cell.
The plates in a galvanic couple are termed elements, as the carbon and
zinc plates in a Bunsen cell. The plate unattacked by the solution, as
the carbon plate in the above battery, is termed the negative plate or
element; the one attacked, as the zinc plate, is termed the positive
plate or element.
Synonym--Voltaic Element.
Elements, Electrical Classification of.
This may refer to Electro-chemical Series, Electrostatic Series, or
Thermo-electric Series, all of which may be referred to.
Element, Thermo-electric.
One of the metals or other conductors making a thermo-electric couple,
the heating of whose junction produces electro-motive force and a
current, if on closed circuit. The elements of a couple are respectively
positive and negative, and most conductors can be arranged in a series
according to their relative polarity. (See Thermo-electric Series.)
Elongation.
The throw of the magnetic needle. (See Throw.)
Synonym--Throw.
Embosser, Telegraph.
A telegraphic receiver giving raised characters on a piece of paper. It
generally refers to an apparatus of the old Morse receiver type, one
using a dry point stylus, which pressing the paper into a groove in the
roller above the paper, gave raised characters in dots and lines.
Fig. 163. MORSE RECEIVER.