A Plain Elementary and Practical System of Natural Experimental Philosophy: Including Astronomy and Chronology |
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Page xx
... effects ; but although it left him so feeble as to be unable to walk without aid , he still persevered in performing his public duties . His remaining strength began to fail him during the early part of the year 1802 , and in the month ...
... effects ; but although it left him so feeble as to be unable to walk without aid , he still persevered in performing his public duties . His remaining strength began to fail him during the early part of the year 1802 , and in the month ...
Page 5
... effects , contrived by infinite wisdom , could be searched out by the slightest endeavours of our weak and shallow understandings . Whereas the only me- thod , that can afford us any good prospect of success is to make our inquiries ...
... effects , contrived by infinite wisdom , could be searched out by the slightest endeavours of our weak and shallow understandings . Whereas the only me- thod , that can afford us any good prospect of success is to make our inquiries ...
Page 10
... effects , and derive many signal advantages , in the art of gun- nery and the motion of spouting fluids , from the know- ledge we have already obtained . Sir Isaac Newton has greatly increased our knowledge of the solar sys- tem , by ...
... effects , and derive many signal advantages , in the art of gun- nery and the motion of spouting fluids , from the know- ledge we have already obtained . Sir Isaac Newton has greatly increased our knowledge of the solar sys- tem , by ...
Page 16
... effects produced . It is from this invariable proportion between the cause and the effect in natural agents that we estimate the force of the cause , from the known quantity of the effect , and vice versa ; and therefore it should be ...
... effects produced . It is from this invariable proportion between the cause and the effect in natural agents that we estimate the force of the cause , from the known quantity of the effect , and vice versa ; and therefore it should be ...
Page 13
... effects . And in the production of the effect , they constantly observe this fundamental rule : that the effect shall be always proportionable to the whole power and effi ciency of the cause . Thus the same quantity of fire always burns ...
... effects . And in the production of the effect , they constantly observe this fundamental rule : that the effect shall be always proportionable to the whole power and effi ciency of the cause . Thus the same quantity of fire always burns ...
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Common terms and phrases
acquired altitude angle of incidence angle of refraction appear arch atmosphere attraction axis bulk called center of force central force circle colour concave concave lens converge convex lens curve cycloid degree denser medium density descend diameter direction diverge earth ecliptic elastic electricity ellipsis equal equator fall feet fluid focal distance friction given glass globe greater greatest half heat heavy body Hence hole horizon increased inversely latus rectum length less magnet mercury meridian mirror moon moon's motion move nearer nonconductor object observed octave orbit parabola parallel particles pass pendulum perpendicular plane Plate pole pressure prime conductor produced projectile proportional quantity of matter radiant point radius rays of light reflected reflexion retina revolving right ascension round side sine sound space specific gravity square root string sun's surface syzygies tance tangent telescope thereby tides tion tube velocity vessel vial vibrations weight wheel wind
Popular passages
Page iii - Co. of the said district, have deposited in this office the title of a book, the right whereof they claim as proprietors, in the words following, to wit : " Tadeuskund, the Last King of the Lenape. An Historical Tale." In conformity to the Act of the Congress of the United States...
Page iii - An Act supplementary to an Act, entitled " An Act for the Encouragement of Learning, by securing the copies of Maps, Charts, and Books, to the authors and proprietors of such copies during the time* therein mentioned," and extending the benefits thereof to the arts of designing, engraving, and etching historical and other prints.
Page 264 - When a ray of light passes from one medium to another, it is refracted so that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities in the two media.
Page iii - An Act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies during the times therein mentioned." And also to the act, entitled " An Act supplementary to an Act, entitled, " An Act for the encouragement of learning, by securing the copies of maps, charts, and books, to the authors and proprietors of such copies during the time therein mentioned," and extending the benefits thereof to the arts of designing, engraving, and...
Page 266 - This amounts to the same with saying, that, in the case before us, the sine of the angle of incidence is to the sine of the angle of refraction in a given ratio.
Page xiii - Alison, his former tutor and friend, and, after the usual period of preparatory study, he was licensed to preach the Gospel by the presbytery of Newcastle, in the state of Delaware.
Page 162 - And hence, as the specific gravity of the fluid is to that of the body, so is the whole magnitude of the body to the part immersed.
Page xxiv - His own investigation confirmed him in his belief of the doctrines of grace. These were the doctrines which he preached and which he endeavoured to impress upon the hearts of his people.* His discourses were written with accuracy; the truths which they contained were well examined and digested before he ventured to offer them to the public. He thought it a duty which he owed to his God and his hearers, to think before he spoke, to study and to ponder in private, before he arose in the presence of...
Page xxvi - ... pastoral charge. The only serious disorder which he had, was the one which proved fatal, and which first seized him (in 1796) six years before his death. After his first attack he frequently preached, but never regained his strength of body, or vigour of mind. In his sickness he discovered patience, fortitude and resignation to the will of his heavenly Father. No murmur escaped his lips, and his last moments were closed apparently without a pang and without a struggle. In a good old age, in his...
Page xxv - ... that weep. He was perfectly free from pedantry, and from every thing that bore its resemblance. In the company of philosophers, he was in his conversation the philosopher, and with the unlettered, the man of ease and accommodation. His talent of narration was universally admired. His observation of men and manners in this country and abroad furnished him with many scenes and facts which as painted and related by him were extremely entertaining. In domestic life he was amiable. He had all the...