Conversations on Natural Philosophy: In which the Elements of that Science are Familiarly Explained and Adapted to the Comprehension of Young Pupils |
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Page 26
... recollect that the two plates of glass which were to serve as mirrors , stuck so fast together , that I imagined some of the gum I had been using had by chance been inter- posed between them ; but now I make no doubt but that it was ...
... recollect that the two plates of glass which were to serve as mirrors , stuck so fast together , that I imagined some of the gum I had been using had by chance been inter- posed between them ; but now I make no doubt but that it was ...
Page 29
... recollect the names of the general properties of bodies ?. EMILY . Impenetrability , extension , figure , divisibility , inertia , and attraction . MRS . B. Very well . You must remember that these are properties common to all bodies ...
... recollect the names of the general properties of bodies ?. EMILY . Impenetrability , extension , figure , divisibility , inertia , and attraction . MRS . B. Very well . You must remember that these are properties common to all bodies ...
Page 33
... recollect that the force of attraction is proportioned to the quantity of matter which bodies contain ; and if you consider the difference there is in that respect , between a stone and the earth , you will not be surprised that you do ...
... recollect that the force of attraction is proportioned to the quantity of matter which bodies contain ; and if you consider the difference there is in that respect , between a stone and the earth , you will not be surprised that you do ...
Page 35
... recollect , diminishes with distance ; and in the example of the plumb - line , the weight suspended is considerably nearer to the mountain than to the centre of the earth , then the inclination of the plumb - line towards the mountain ...
... recollect , diminishes with distance ; and in the example of the plumb - line , the weight suspended is considerably nearer to the mountain than to the centre of the earth , then the inclination of the plumb - line towards the mountain ...
Page 46
... recollect , expands all bodies ; it conse- quently rarefies air , and renders it lighter than the colder air of the atmosphere ; the heated air from the fire carries up with it vapour and small particles of the combustible materials ...
... recollect , expands all bodies ; it conse- quently rarefies air , and renders it lighter than the colder air of the atmosphere ; the heated air from the fire carries up with it vapour and small particles of the combustible materials ...
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Common terms and phrases
angle angle of incidence appear atmosphere attraction axis ball called camera obscura CAROLINE centre of gravity centre of motion centrifugal force circle cohesion colour concave mirror cricket ball degrees descend diminishes direction distance diurnal motion draw earth eclipse elastic EMILY equal equator equilibrium fixed stars fluids focus fulcrum glass globe greater heat heavier lens less lever liquid Lowry Sc luminous body mechanical power mercury meridian mirror moon move nature object obliquely observe opaque body opposite orbit parallelogram particles pass perfectly perpendicular planets Plate polar circles pole pressure proceed produced proportion pulley pump quantity rays fall rays of light re-action recollect reflected rays refraction resistance retina revolve rise round the sun shadow shine situated solid bodies sonorous body space specific gravity string sun's rays suppose surface tion true tube understand vapour velocity vibrations weight wheel whilst wind