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apparatus armature arrangement arriving attached attracted axis battery beam bottom cable carried circuit clockwork closed coils commutator connected consists construction continuation copper core corresponding covered cylinder deflected dial direction disc distance earth effect electricity electro-magnet employed equal experiments force front give given goes held holes indicator inserted insulated interrupted iron length letter lever lifted magnet marked means metal method Morse motion moved needle operator opposite passes permanent piece placed plate pointer polarised poles positive posts pressed prevent printing receiving relay released remains resistance rest reverse round screw sending shaft shown side signals single space spring station strip style supported surface switch teeth telegraph terminal tion tongue translation transmitting turning type-wheel types upper vertical wheel whilst wire
Página 5 - he felt himself struck in his arms, shoulders, and breast, so that he lost his breath, and was two days before he recovered from the effects of the blow and the terror.
Página 11 - ... and his wife, by remarking the corresponding motions of the ball, writes down the words they indicate: from which it appears he has formed an alphabet of motions. As the length of the wire makes no difference in the effect, a correspondence might be carried on at any distance...