Lectures on Natural and Experimental Philosophy: Considered in It's [sic] Present State of Improvement. Describing in a Familiar and Easy Manner, the Principal Phenomena of Nature; and Shewing, that They All Co-operate in Displaying the Goodness, Wisdom, and Power of God, Volumen 3R. Hindmarsh, 1794 |
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Página 39
... vibrations in times exactly equal in equal arcs , keeping always pace together , and acquiring always equal velocities at the corresponding points of thofe arcs , unless so far as the refiftance of the air may act upon them unequally ...
... vibrations in times exactly equal in equal arcs , keeping always pace together , and acquiring always equal velocities at the corresponding points of thofe arcs , unless so far as the refiftance of the air may act upon them unequally ...
Página 76
... principles ; as an in- ftance , he affirms , " it may juft as well be faid that found cannot confift of a vibration of the air , be- caufe caufe no found could refult from the motion of a 76 LECTURES ON NATURAL PHILOSOPHY .
... principles ; as an in- ftance , he affirms , " it may juft as well be faid that found cannot confift of a vibration of the air , be- caufe caufe no found could refult from the motion of a 76 LECTURES ON NATURAL PHILOSOPHY .
Página 130
... vibrating motion . When going to move it , the fish turns the end oblique to the water , and moves it through it in that pofition . The water re - acts obliquely againft the tail , and moves him partly forward and partly laterally . The ...
... vibrating motion . When going to move it , the fish turns the end oblique to the water , and moves it through it in that pofition . The water re - acts obliquely againft the tail , and moves him partly forward and partly laterally . The ...
Página 145
... vibrates feconds . Many mechanical devices might be applied for letting the weight A begin it's defcent at the inftant of the beat of the pendulum ; but it is fimpler , and I think better , to let the bottom of the piece A , when even ...
... vibrates feconds . Many mechanical devices might be applied for letting the weight A begin it's defcent at the inftant of the beat of the pendulum ; but it is fimpler , and I think better , to let the bottom of the piece A , when even ...
Página 172
... vibrating , you will find the fide which is perpendicular to a line drawn through the center of gravity and fuf- penfion is in an horizontal pofition . That this must happen is evident , because the horizontal pofition , under the ...
... vibrating , you will find the fide which is perpendicular to a line drawn through the center of gravity and fuf- penfion is in an horizontal pofition . That this must happen is evident , because the horizontal pofition , under the ...
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Otras ediciones - Ver todo
Términos y frases comunes
abfolute afcend againſt alfo aqua fortis arifes atmoſphere avoirdupois axis ballance becauſe body cafe caufe cauſe center of gravity circle confequently confiderable confidered confifts defcend defcribed diameter direction diſtance ecliptic elafticity equal equator faid fame fcrew fecond feet fenfes feven fhall fhew fhould fide firft fituation fixed fluid fmall folid fome fpace fpecific gravity fphere fpring fquare friction ftars ftill ftrength ftroke fubftance fubject fuch fufficient fufpended fuftain fuppofe fupport furface fyftem heavens horizon inches inclined plane increaſe inftance interfection itſelf lefs lever lofes machine mafs meaſure moft motion muft muſt neceffary obferved ofcillation oppofite ounces paffing pendulum philofophers pifton plane pofition pole preffed preffure proportion pullies purpoſe quantity of matter raife raiſed reafon refiftance reft rife ſmall ſpace ſtars thefe theſe thofe thoſe tion tube uſed veffel velocity vibrations weft weight wheel whofe
Pasajes populares
Página 511 - In them hath he set a tabernacle for the sun; which is as a bridegroom coming out of his chamber, and rejoiceth as a strong man to run a race. His going forth is from the end of the heaven, and his circuit unto the ends of it: and there is nothing hid from the heat thereof.
Página 511 - Their line is gone out through all the earth, And their words to the end of the world. In them hath he set a tabernacle for the sun...
Página 363 - One man draws out the wire, another straights it, a third cuts it, a fourth points it, a fifth grinds it at the top for receiving the head ; to make the head requires two or three distinct operations ; to put it on is a peculiar business, to whiten the pins is another ; it is even a trade by itself to put them into the paper; and the important business of making a pin is in this manner divided into about eighteen distinct operations...
Página 363 - But in the way in which this business is now carried on, not only the whole work is a peculiar trade, but it is divided into a number of branches, of which the greater part are likewise peculiar trades.
Página 364 - ... the invention of a great number of machines which facilitate and abridge labour, and enable one man to do the work of many.
Página 458 - But the exercise of swimming, said the prince, is very laborious: the strongest limbs are soon wearied. I am afraid the act of flying will be yet more violent; and wings will be of no great use, unless we can fly further than we can swim.
Página 459 - should you envy others so great an advantage? All skill ought to be exerted for universal good; every man has owed much to others and ought to repay the kindness that he has received.
Página 511 - Let them praise the name of the LORD: for he commanded, and they were created.
Página 460 - ... waved his pinions a while to gather air, then leaped from his stand, and in an instant dropped into the lake. His wings, which were of no use in the air, sustained him in the water, and the prince drew him to land, half dead with terror and vexation.
Página 12 - ... even so very hard as never to wear or break in pieces ; no ordinary power being able to divide what God himself made one, in the first creation. While the particles continue entire, they may compose bodies of one and the same nature and texture in all ages ; but should they wear away or break in pieces, the nature of things depending on them would be changed.