Phosphorescence, Or, the Emission of Light By Minerals, Plants, And Animals
Phosphorescence, Or, the Emission of Light By Minerals, Plants, And Animals
Phipson, T. L. (Thomas Lamb), 1833-1908
The book Phosphorescence, Or, the Emission of Light By Minerals, Plants, And Animals was written by author Phipson, T. L. (Thomas Lamb), 1833-1908 Here you can read free online of Phosphorescence, Or, the Emission of Light By Minerals, Plants, And Animals book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Phosphorescence, Or, the Emission of Light By Minerals, Plants, And Animals a good or bad book?
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When the optic nerve is cut, no pain is felt ; but an intense flash of light across the eyes is experi- enced. The same flash occurs when an electric current passes through the optic nerve, as some- times happens when a piece of silver and a piece of zinc are made to form a galvanic couple with the tongue or other parts of the mouth. To en sure the success of this experiment, the plates of zinc and silver should be placed upon the inside of each cheek, and connected together, outside the mouth,... with a piece of silver wire. I have observed very vivid luminous appear- ances, during fever, in my own eyes ; they mani- fested themselves after any violent exertion, such as going upstairs, walking quickly across a room, etc.* The light appeared in the form of myriads of luminous spots, in rapid motion, and of a greenish-yellow tint. These phenomena, to which I have given the * These actions would not amount to violent in a state of health, but require a great amount of exertion during illness.
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