Europe by Mr. Preece may, therefore, be reconciled with the positive results obtained in America by Mr. Tainter and myself. A still more curious demonstration of localization of vibration occurred in the case of a large metallic mass. An intermittent... Journal of the Franklin Institute - Seite 681881Vollansicht - Über dieses Buch
| Smithsonian Institution - 1883 - 818 Seiten
...vibration occurred in the case of a large metallic mass. An intermittent beam of sunlight was focusBed upon a brass weight (1 kilogram,) and the surface...was necessary in order to obtain audible effects. Now, I do not mean to deny that sound waves may be originated in the manner suggested by Mr. Preece,... | |
| Philosophical Society of Washington (Washington, D.C.) - 1881 - 902 Seiten
...Mr. Prcece may, therefore, be reconciled with the positive results obtained in America by Mr. Taiuter and myself. A still more curious demonstration of...was necessary in order to obtain audible effects. Now, I do not mean to deny that sound waves may be originated in the manner suggested by Mr. Preece,... | |
| Sir Norman Lockyer - 1881 - 658 Seiten
...case of a large metallic mass. An intermittent beam of sunlight was focussed upon a brass weight (I kilogram.) and the surface of the weight was then...was necessary in order to obtain audible effects. Now I do not mean to deny that sound-waves may be originated in the manner suggested by Mr. Preece,... | |
| 1881 - 566 Seiten
...large metallic mass. An intermittent beam of sunlight was focussed upon a brass weight (i kilogramme), and the surface of the weight was then explored with...was necessary in order to obtain audible effects. Now, I do not mean to deny that sound-waves may be originated in the manner suggested by Mr. Preece,... | |
| Sir Norman Lockyer - 1881 - 664 Seiten
...mass. An intermittent beam of sunlight was focussed upon a brass weight (I kilogram.) and the -.urhce of the weight was then explored with the microphone...the point of the microphone and the surface explored w as necessary in order to obtain audible effects. Now I do not mean to deny that sound-waves may be... | |
| 1881 - 1100 Seiten
...B, diaphragm; C, hearing tube; WHS then explored with D. perforated handle. Figure reduced oue-half. the microphone shown in fig. 2. A feeble but distinct...sound was heard upon touching the surface within the illuniinated area and for a short distance outside, but not in other parts. In this experiment, as... | |
| Smithsonian Institution - 1883 - 822 Seiten
...illuminated area, and in the corresponding area on the other side of the diaphragm. Outside of this arsa on both sides of the diaphragm the sounds became weaker...was necessary in order to obtain audible effects. Now, I do not mean to deny that sound waves may be originated in the manner suggested by Mr. Preece,... | |
| Sir Norman Lockyer - 1881 - 710 Seiten
...case of a large metallic mass. An intermittent beam of sunlight was focussed upon a brass weight (i kilogram.) and the surface of the weight was then...was necessary in order to obtain audible effects. Now I do not mean to deny that sound-waves may be originated in the manner suggested by Mr. Preece,... | |
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