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 Telecommunications Object Thesaurus Term

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primary cell

primary cells

Initial Reference:
Electricity in the Service of Man, by Wormell - 1897

Top term:

Broader term:

Narrower term(s):

Scope notes:
Unitary electrochemical source of electricity in which the current is produced by a one-way reaction. Such cells are either disposable or can be remade by replacing either the electrodes or the electrolyte, or both. (For two or more 'cells' used together, see battery.)


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fun and games

Can you beat our games? Explode equipment to see what's inside, hear the changing sounds of telecommunications, see how telecommunications designs have changed over time or send an e-postacard.

what's on

The UK's first permanent gallery dedicated to the history of information and communication technologies opens in the new Information Age gallery at London’s Science Museum.

audio history

Take a trip down memory lane with extracts of the interviews which have been recorded as part of the Connected Earth oral history programme.

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100 years of automatic switching!
In 1912 the GPO installed Britain's first automatic telephone exchange in Epsom.

Discover the early days of the telephone...