Scientific AddressesC.C. Chatfield & Company, 1870 - 74 páginas |
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action Alpine atmosphere atoms azure Bain beam brain British Association Brücke's cannula carbonic acid CHATFIELD color condensation Conn cotton wool crystal dark currents darkness definite density dium earth elasticity epidemic disease ether waves evolution hypothesis exist experiment experimental tube fact Fichte firmament flame floating matter Full of particles germ theory Goethe Haze and Dust heat human Huxley ical illuminated imagination inferred intellectual JOHN TYNDALL knowledge law of relativity liquid lungs magnetic mechanism Methods and Tendencies microscope mind minute molecules Mont Blanc nature nebulous observed Optically empty organic phenomena physical placed present probably produce Prof proportions putrefaction pyramids question reason Red-hot reflected light regard render retina revealed salt scattered scientific shell sky matter smoke solar light spectrum sulphurous acid temperature thought tion transmitted light truth turbid velocity wave motion waves of ether Yale College
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Página 17 - Were our minds and senses so expanded, strengthened, and illuminated, as to enable us to see and feel the very molecules of the brain ; were we capable of following all their motions, all their groupings...
Página 16 - A man, for example, can say, I feel, I think, I love ; but how does consciousness infuse itself into the problem? The human brain is said to be the organ of thought and feeling ; when we are hurt, the brain feels it, when we ponder...
Página 14 - ... and by the application of purely mechanical principles demonstrate that the cycle must end, as it is seen to end, in the reproduction of forms like that with which it began. A similar necessity rules here to that which rules the planets in their circuits round the sun.
Página 36 - We are gifted with the power of imagination, and by this power we can lighten the darkness which surrounds the world of the senses. There are tories, even in science, who regard imagination as a faculty to be feared and avoided rather than employed.
Página 7 - Nature's ways are not at all times their ways, and that the brightest flashes in the world of thought are incomplete until they have been proved to have their counterparts in the world of fact.
Página 11 - ... and in certain definite directions; and that the pyramidal form is the result of this play of attraction and repulsion. While, then, the blocks of Egypt were laid down by a power external to themselves, these molecular blocks of salt are self-posited, being fixed in their places by the forces with which they act upon each other.
Página 12 - ... with increased intensity behind. And now let us pass from what we are accustomed to regard as a dead mineral to a living grain of corn. When it is examined by polarized light, chromatic phenomena similar to those noticed in crystals are observed.
Página 15 - Which of you by taking thought can add one cubit to his stature ? All that has been said, then, regarding the plant may be restated with regard to the animal. Every particle that enters into the composition of a muscle, a nerve, or a bone, has been placed in its position by molecular force. And unless the existence of law in these matters be denied...
Página 8 - If you look at the face of a watch, you see the hour and minute hands, and possibly also a second-hand, moving over the graduated dial. Why do these hands move ? and why are their relative motions such as they are observed to be ? These questions cannot be answered without opening the watch, mastering its various parts, and ascertaining their relationship...
Página 70 - Many who hold it would probably assent to the position that, at the present moment, all our philosophy, all our poetry, all our science, and all our art — Plato, Shakespeare, Newton, and Raphael — are potential in the fires of the sun.