Mindblown: a blog about philosophy.
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Exercises For The Hands
I AM, and have been, any time these thirty years, a man who works with his hands a handicraftsman. If the most nimble-fingered watch-maker among you will come to my workshop, he may set me to put a watch together, and I will set him to dissect, say, a black beetle’s nerves. I do […]
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Exercises For The Nerves
“STANDING at the centre of the universe, a thousand forces come rushing in to report themselves to the sensitive soul-centre. There is a nerve in man that runs out to every room and realm in the universe. ” Man’s mechanism stands at the centre of the universe with telegraph lines extending in every direction. It […]
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Exercises In Touch
“THE sense of touch is the most positive of all the senses in the character of its sensations. In many respects it is worthy to be called the leading sense.” Noah Porter. ” All the senses are modifications of the sense of touch.” Demosthenes. THEORY OF THIS CHAPTER Mind thrown into or abstracted from physical […]
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Exercises In Smell
IT is stated in Mr. Stewart’s account of James Mitchell, who was deaf, sightless and speechless, and, of course, strongly induced by his ‘unfortunate situation to make much use of the sense we are considering, that his smell would immediately and invariably inform him of the presence of a stranger, and direct to the place […]
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Exercises In Taste
THE German Physiologist, Valentin, could detect bitter at 100,000th of a solution of quinine. ” Taste can be educated, as the nice discriminations of the professional tea-tasters show. In subconscious conditions it is also abnormally acute.” Text Book. THEORY OF THIS CHAPTER A discriminating mind in taste; A cultivated mind in taste; Willed attention habituating […]
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Exercises For The Ear
“I HAD an opportunity of repeatedly observing the peculiar manner in which he (Dr. Saunderson) arranged his ideas and acquired his information. Whenever he was introduced into company, I remarked that he continued some time silent. The sound directed him to judge of the dimensions of the room, and the different voices of the number […]
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The Will And Its Action
THERE has been altogether too much talk about the secret of success. Success has no secret. Her voice is forever ringing through the marketplace and crying in the wilderness, and the burden of her cry is one word will. Any man who hears and heeds that cry is equipped fully to climb to the […]
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The Introduction Of Collodion
THE next important advance in the chemical department of photography, after the introduction of albumen on glass plates, was the invention of the collodion process. Collodion is a viscid compound composed of soluble pyroxyline dissolved in ether, to which alcohol is added. When poured upon a plate of glass it runs freely over the surface, […]
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Lenses
IT has been shown that when light passes through a prism it is not only refracted, but dispersed ; and as lenses are, as it were, but a collection of prisms, we see the same effect produced by them. They will at once be perceived by referring to the diagram (Fig. 21), in which A […]
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The Camera And Lenses
STEP by step with the progress of photographic chemistry went on the development of the camera. Something has already been said about the camera obscura, from which the camera of the photographer took its rise. In this, the principal apparatus used in drawing by the pencil of light, we have nothing more nor less than […]
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