A Plain Elementary and Practical System of Natural Experimental Philosophy: Including Astronomy and ChronologyHopkins and Earle, 1809 - 538 pages |
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Page 23
... angle ; as every column may be considered as a capillary tube , differing in diameter from the contiguous column , according to its distance from the angular point of the planes . The capillary syphon works by the same laws , that are ...
... angle ; as every column may be considered as a capillary tube , differing in diameter from the contiguous column , according to its distance from the angular point of the planes . The capillary syphon works by the same laws , that are ...
Page 42
... angle of about 75 degrees below the nor- thern horizon , and nearly in the direction of the meri- dian ; and lastly , by preparing and polishing two pieces of steel , and arming one of them with a cap of the same : then , if the unarmed ...
... angle of about 75 degrees below the nor- thern horizon , and nearly in the direction of the meri- dian ; and lastly , by preparing and polishing two pieces of steel , and arming one of them with a cap of the same : then , if the unarmed ...
Page 43
... angle of some degrees , towards the north ; which seems to be owing to its losing some of its gravity from the south end of the needle ; as the whole needle has been found by many experiments to weigh less than before the touch . This ...
... angle of some degrees , towards the north ; which seems to be owing to its losing some of its gravity from the south end of the needle ; as the whole needle has been found by many experiments to weigh less than before the touch . This ...
Page 112
... angle in a semicircle is a right angle , if a semicircle be described on the altitude of a plane as its diameter , it will intersect all the planes that have the same altitude in the points to which a heavy body would roll down , in the ...
... angle in a semicircle is a right angle , if a semicircle be described on the altitude of a plane as its diameter , it will intersect all the planes that have the same altitude in the points to which a heavy body would roll down , in the ...
Page 118
... angle . The arch of the cycloid BV , cut off by a line BNG parallel to the base , is double of the corresponding chord BI or NB of the generating circle . Let POR be drawn infinitely near to BNG , cutting VN pro- duced in S , and the ...
... angle . The arch of the cycloid BV , cut off by a line BNG parallel to the base , is double of the corresponding chord BI or NB of the generating circle . Let POR be drawn infinitely near to BNG , cutting VN pro- duced in S , and the ...
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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...