The telephone, the microphone, and the phonograph. Transl |
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Más kiadások - Összes megtekintése
Gyakori szavak és kifejezések
Académie des Sciences action applied armature arrangement articulate sounds ascertained audible bar magnet battery Bell telephone Bell's caoutchouc carbon caused centimètres centre circuit Cloth Colonel Navez communication connected copper corresponding Crown 8vo cylinder Daniell cell Demy 8vo diaphragm distance distinctly duced Edison Edition effects produced electric electro-magnet Elisha Gray emitted employed experiments fastened Fcap fixed galvanometer heard helix Hughes induced currents induction coil influence inserted instru instrument intensity invention Leclanché cell local battery magnetic core magnetised membrane ment metallic microphone Morse mouthpiece movements musical obtained ordinary telephone phonautograph phonograph placed platinum poles Preece react receiving telephone regulated represented in fig resistance result Ruhmkorff coil screw sender sending sensitive sounds produced speaking spring station string telephones surface tele Telegraphic Journal telegraphic wire thermoscope tinfoil tion tracing transmission tube tuning-fork variations vibrating disk vibrating plate voice voltaic
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