Question

kiedy i jak aleksander bell wpadł na pomysł skonstrułowania telefonu ? (4-5zdań)

proszę napisać po angielsku i przetłumaczyć na j. polski.

błagam pomocy

dam naj:)

Answer 1

The firstfruits ofthe workin the laboratorywas theearpieceand microphone.Combinedwith the electricdevicewasenhancingvoice.But it wastoo largeto requiretoo muchpower sourcesto enable them tomove.Work onthis unitlasted overthree years,Alexanderworkedsometimesat night,should not be surprisedisthatBell wassounhappy withtheirresults.However, hiswifegave him the ideato connect theheadsetwith microphone.Two suchinventionsconnected with each otherby typingthe cablehave resulted inthe possibilityof distance.Alexandercalled thisdevicethe phone(tele?RemotePhonetics?Phonetics?Speech).Figureon the leftcomes fromthe log,from the laboratoryof Graham
From thisfigurecan be seen thatthe first phonehad nodialortone.All interviewstook placethroughan operator thatconnectsthe speakerto the desiredsubscriber, and theprinciple of operation ofthe phonecan be explainedthis way:
"I usedthe phonediaphragm, thediaphragm,was sodelicate that itquiveredunder the influence ofthe human voice.Bellputit next toan electromagnet.Vibrations ofthe diaphragmledtochangesin the magnetic fieldand, consequently,to changes inelectricalcurrentin the circuitof the electromagnet.Attachedto the systembatterywas designed tostrengthen,transmittedat a distance,the signal.at the otherend of thewiresignal wasconvertedback intovibrationby asimilar device.

 DASZ NAJ.