A Plain Elementary and Practical System of Natural Experimental Philosophy: Including Astronomy and ChronologyHopkins and Earle, 1809 - 538 pages |
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Page 15
... fixed and determinate rules , which are denominated the laws of nature ; as they are the invariable appointment of the First Cause of all things , whereby he determined that certain natural causes should always , in the same ...
... fixed and determinate rules , which are denominated the laws of nature ; as they are the invariable appointment of the First Cause of all things , whereby he determined that certain natural causes should always , in the same ...
Page 32
... fixed and hard body , as is evidently seen in water and mercury . This produces the melting or fusion of metals ; for when their particles are so far separated by the action of fire , as to touch one ano- ther but very slightly or not ...
... fixed and hard body , as is evidently seen in water and mercury . This produces the melting or fusion of metals ; for when their particles are so far separated by the action of fire , as to touch one ano- ther but very slightly or not ...
Page 34
... that of copper by iron ; and in general of all metals dissolved in acids , by an absorbent earth , or a volatile or fixed alkali . All the compositions , decompositions and mixtures of the chemists , whether effected by a single or 34 .
... that of copper by iron ; and in general of all metals dissolved in acids , by an absorbent earth , or a volatile or fixed alkali . All the compositions , decompositions and mixtures of the chemists , whether effected by a single or 34 .
Page 46
... fixed to the end of a large piece of iron , even though the points of contact between the iron and loadstone were the same in both experiments . It acts with the greatest force at corners , points and angles , and therein has something ...
... fixed to the end of a large piece of iron , even though the points of contact between the iron and loadstone were the same in both experiments . It acts with the greatest force at corners , points and angles , and therein has something ...
Page 49
... fixed by the bar's continuing long in that state . While these powers are separated even in the lowest degree in the large bar ; if a small bar be drawn over the end of the large bar , the power , which predominates in the end of the ...
... fixed by the bar's continuing long in that state . While these powers are separated even in the lowest degree in the large bar ; if a small bar be drawn over the end of the large bar , the power , which predominates in the end of 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...