Scientific amusements . circum-ference was about eight feet, and Kircher conjectured thatthe instrument was mounted upon three supports. During the last century, a German professor, namedHuth, made a model of the horn, and found it answeredevery purpose of a speaking-trumpet with most powerfulresults, but we beg leave to doubt whether the instrumentreally carried the voice to any very great distance. The Acoustic Cornet, which is the counterpart of thespeaking-trumpet, has been made in many different formsduring the last two centuries, but none of them to thepresent time consist of anything mo
Scientific amusements . circum-ference was about eight feet, and Kircher conjectured thatthe instrument was mounted upon three supports. During the last century, a German professor, namedHuth, made a model of the horn, and found it answeredevery purpose of a speaking-trumpet with most powerfulresults, but we beg leave to doubt whether the instrumentreally carried the voice to any very great distance. The Acoustic Cornet, which is the counterpart of thespeaking-trumpet, has been made in many different formsduring the last two centuries, but none of them to thepresent time consist of anything more intricate than asimple tube with a mouthpiece and bell-shaped orifice. Professor Edison, however, in his researches regardingthe conveyance of sounds, has made numerous and interest- THE MEGAPHONE. ^75 ing experiments. On one occasion, with his Megaphonehe carried on a conversation at a distance of nearly twomiles, without any other assistance from instrumentsexcept a few little cornets of cardboard. These constitute. The Megaphone. the Megaphone, which may be regarded as a curiosity,considering the effects produced by such simple illustration represents the instrument which is (orwas lately) fixed upon the balcony of Mr. Edisons a mile-and-a-half distant from the house, at a spot 176 SOUND. indicated by the two birds in the picture, another instru-ment was fixed, and conversation was carried on with the present opportunity will be the most con-venient to speak of the AUTOPHONE, although it is morea musical than an acoustic instrument. Until latelyBarbary organs and piano organs have been the onlymeans by which poor people have been able to hear any
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Keywords: ., bookcentury1800, bookdecade189, booksubjectscientificrecreations
