Conversations on Natural Philosophy: In which the Elements of that Science are Familiarly Explained, and Adapted to the Comprehension of Young PupilsLincoln & Edmands, 1826 - 252 من الصفحات |
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الصفحة 10
... solid or fluid ; and matter is the ge- neral term used to denote the substance , whatever its nature be , of which the different bodies are composed . Thus , wood is the matter of which this table is made ; water is the matter with ...
... solid or fluid ; and matter is the ge- neral term used to denote the substance , whatever its nature be , of which the different bodies are composed . Thus , wood is the matter of which this table is made ; water is the matter with ...
الصفحة 11
... solid body ; yet it is not the less substantial , since it is as impossible for a liquid and a solid to occupy the same space at the same time , as for two solid bodies to do so . For instance , if you put a spoon into a glass full of ...
... solid body ; yet it is not the less substantial , since it is as impossible for a liquid and a solid to occupy the same space at the same time , as for two solid bodies to do so . For instance , if you put a spoon into a glass full of ...
الصفحة 13
... solid body in a liquid affords a very striking example of the extreme divisibility of matter ; when you sweeten a cup of tea , for instance , with what minuteness the sugar must be divided to be diffused throughout the whole of the ...
... solid body in a liquid affords a very striking example of the extreme divisibility of matter ; when you sweeten a cup of tea , for instance , with what minuteness the sugar must be divided to be diffused throughout the whole of the ...
الصفحة 16
... solid bodies would fall in pieces , or rather crumble to atoms . Emily . I am so much accustomed to see bodies firm and solid , that it never occurred to me that any power was requisite to unite the particles of which they are composed ...
... solid bodies would fall in pieces , or rather crumble to atoms . Emily . I am so much accustomed to see bodies firm and solid , that it never occurred to me that any power was requisite to unite the particles of which they are composed ...
الصفحة 17
... solid mass ; or even in a liquid state . But is the air a body of the same nature as other bodies ? Mrs. B. Undoubtedly , in all essential properties , Emily . Yet you say that it does not possess one of the general properties of bodies ...
... solid mass ; or even in a liquid state . But is the air a body of the same nature as other bodies ? Mrs. B. Undoubtedly , in all essential properties , Emily . Yet you say that it does not possess one of the general properties of bodies ...
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angle angle of incidence appear astronomy atmosphere axis ball called camera obscura Caroline centre of gravity centrifugal force circle cohesive attraction concave mirror consequently convex mirror degrees diminished direction distance diurnal motion earth eclipse ecliptick effect Emily equal equator explain figure fixed stars focus force fulcrum geometry glass globe greater heat humour lens less lever liquids mechanical power mechanicks mercury meridian moon motion move Natural Philosophy nature object obliquely observe opaque body opposite opticks orbit particles passes pendulum perpendicular planets plate poles pressure produced properties proportion pulley pump rays fall rays of light re-action reflected rays reflecting telescope refraction represents resistance retina right line rise round the sun shadow shines situated solar solid bodies sonorous body sound space specifick gravity sphere spring sun's rays suppose surface tides tion tube understand vapour velocity vibrations weight whilst wind zodiack
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الصفحة 89 - Had in her sober livery all things clad; Silence accompanied, for beast and bird, They to their grassy couch, these to their nests, Were slunk, all but the wakeful nightingale; She all night long her amorous descant* sung; Silence was pleased: now...
الصفحة 2 - District Clerk's Office. BE IT REMEMBERED, that on the tenth day of August, AD 1829, in the fifty-fourth year of the Independence of the United States of America, JP Dabney, of the said district, has deposited in this office the title of a book, the right whereof he claims as author, in the words following, to wit...
الصفحة 101 - evidence of things not seen," in the fulness of Divine grace ; and was profound on this, the greatest concern of human life, while unable even to comprehend how the " inclination of the earth's axis to the plane of its orbit" could be the cause of the change of the seasons.
الصفحة 89 - Now came still evening on, and twilight gray Had In her sober livery all things clad : Silence accompanied; for beast and bird, They to their grassy couch, these to their nests Were slunk, all but the wakeful nightingale; She all night long her amorous descant sung...
الصفحة 89 - By shorter flight to the east, had left him there Arraying with reflected purple arid gold The clouds that on his western throne attend. -^Now came still evening. on, and twilight gray Had in her sober livery all things clad ; Silence accompanied; for beast and bird, They to their grassy couch, these to their nests I Were slunk, all but the wakeful nightingale...
الصفحة 137 - The lateral pressure is the result therefore of the pressure downwards, or the weight of the liquid above ; and consequently the lower the orifice is made in the vessel, the greater will be the velocity of the water rushing out of it.
الصفحة 70 - You will see by this figure (fig. 9.) that it is composed of two parts, the screw and the nut. The screw S is a cylinder, with a spiral protuberance coiled round it, called the thread: the nut N is perforated to contain the screw; and the inside of the nut has a spiral groove, made to fit the spiral thread of the screw.
الصفحة 87 - ... show that heat is produced by the sun's rays only when they act on a calorific medium: they are the cause of the production of heat, by uniting with the matter of fire which is contained in the substances that are heated...
الصفحة 140 - A piece of lead, let us say a cubic inch, for instance, would have less specific gravity in summer than in winter; for it would be more dense in the latter season. CAROLINE. • But, Mrs. B., if you compare the weight of equal quantities of different bodies, they will all be alike. You know the old saying, that a pound of feathers is as heavy as a pound of lead ! MRS.
الصفحة 215 - ... appear colourless or white. Sir Isaac Newton, to whom we are indebted for the most important discoveries respecting light and colours, was the first who divided a white ray of light, and found it to consist of an assemblage of coloured rays, which formed an image upon the wall, such as is exhibited, in which are displayed the following series of colours — red, orange, yellow, green, blue, indigo, and violet.