How to Make Inventions: Or, Inventing as a Science and an Art

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D. Van Nostrand Company, 1893 - 181 стор.
 

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V
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15
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18
IX
27
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128
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138
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153
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154

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38
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57
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91
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158
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XXIV
170

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Сторінка 170 - I keep the subject constantly before me, and wait till the first dawnings open slowly by little and little into a full and clear light.
Сторінка 166 - The second of these greatest of inventors is he who will teach us the source of the beautiful soft-beaming light of the firefly and the glow-worm, and will show us how to produce this singular illuminant, and to apply it with success practically and commercially. This wonderful light, free from heat and from consequent loss of energy, is nature's substitute for the crude and extravagantly wasteful lights of which we have, through so many years, been foolishly boasting. The dynamo-electrical engineer...
Сторінка 26 - Conventionally the period is divided into 24 hours, each hour into 60 minutes, and each minute into 60 seconds.
Сторінка 140 - As large a sum as was ever obtained for any invention was enjoyed by the Yankee who invented the inverted glass bell to hang over gas jets to protect ceilings from being blackened by smoke.
Сторінка 94 - ... the electro-chemical position of a member in the family group appears therefore to be a function of its atomic weight. Oxygen. Sulphur. Selenium. Nitrogen. Fluorine. Chlorine. Bromine. Iodine. Phosphorus. Arsenic. Chromium . Boron. Carbon. Antimony. Silicon. Hydrogen. Gold. Platinum. Mercury. Silver. Copper. Bismuth. Tin. Lead. Cobalt. Nickel. Iron. Zinc. Manganese. Aluminium.
Сторінка 14 - A reconstruction of the machine so that a less number of parts will perform all the functions of the greater may be invention of a high order, but the omission of a part, with a corresponding omission in function, so that the retained parts do just what they did before in the combination, cannot be other than a mere matter of judgment, depending upon whether it is desirable to have the machine...
Сторінка 167 - ... wonderful light, free from heat and from consequent loss of energy, is nature's substitute for the crude and extravagantly wasteful lights of which we have, through so many years, been foolishly boasting. The dynamo-electrical engineer has nearly solved this problem. Let us hope that it may be soon fully solved, and by one of those among our own colleagues who are now so earnestly working in this field, and that we may all live to see him steal the glow-worm's light, and to see the approaching...
Сторінка 171 - Keep a sharp lookout upon your materials ; get rid of every pound of material you can do without; put to yourself the question, ' What business has it to be there ?' avoid complexities, and make everything as simple as possible.
Сторінка 50 - ... of an inch) thick. From this, it is easily computed that the amount of heat received by the earth from the sun in a year is sufficient to melt a shell of ice 137 feet thick all over the earth's surface.
Сторінка 128 - ... prevalent interest in objectivity -a concept which assumes with him a great many differentiations- Husserl never wrote a treatise on ontology. What is more, in none of his writings do we find an ontological theory developed in a systematic and sustained fashion, and presented under the heading of ontology. The explanation of this fact seems to me to lie in the very orientation of constitutive phenomenology. On its grounds, no ontological inquiry can be pursued directly, but only, so to speak,...

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