A text-book on chemistry : for the use of schools and colleges . otes are all loudly and distinctlyheard. But these vibrations, into whichthe table is thrown, have all passedthrough the mass of wood, c / if we touch it, it tremblesbeneath the finger. And now, no matter how shapelessthat intervening mass may be, nor how intricate the noteswhich the instrument is executing, there is no confusionnor intermingling ; the mass of wood and the table onwhich it rests vibrate in unison with the musical mech-anism. When the temperature of solid substances is raised to1000° Fahrenheit, they begin to be l
A text-book on chemistry : for the use of schools and colleges . otes are all loudly and distinctlyheard. But these vibrations, into whichthe table is thrown, have all passedthrough the mass of wood, c / if we touch it, it tremblesbeneath the finger. And now, no matter how shapelessthat intervening mass may be, nor how intricate the noteswhich the instrument is executing, there is no confusionnor intermingling ; the mass of wood and the table onwhich it rests vibrate in unison with the musical mech-anism. When the temperature of solid substances is raised to1000° Fahrenheit, they begin to be luminous in the day-light, or, as it is termed, are visibly red hot. It requiresa far higher temperature to render a gas incandescent, Are there any analogous phenomena illustrating the transmission of ef-fects through great distances ? Can such vibrations pass together throughsolid bodies without disturbing one another ? Give an illustration from thephenomena of sound. At what temperature are solids luminous ? Is agas or a solid more easily made incandescent?. ARTIFICIAL MGiri*)
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