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" ... called in geometry a parabola. But when the ball is thrown perpendicularly upwards, it will descend perpendicularly; because the force of projection, and that of gravity, are in the same line of direction. We have noticed the centres of magnitude... "
Library of Useful Knowledge: Natural philosophy - Page xviii
1832
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Conversations on Natural Philosophy: In which the Elements of that Science ...

Mrs. Marcet (Jane Haldimand) - Physics - 1821 - 312 pages
...direction. We have noticed the centres of magnitude, and of motion ; but I have not yet explained to you, what is meant by the centre of gravity ; it is that point in a body, about which all the parts exactly balance each other ; if therefore that point is supported,...
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Conversations on Natural Philosophy: In which the Elements of that Science ...

Mrs. Marcet (Jane Haldimand), Thomas P. Jones - Physics - 1826 - 286 pages
...direction. \ We have noticed the centres of magnitude, and of motion ; but I have not yet explained to you, what is meant by the centre of gravity^ it is that point in a body, about which all the parts exactly balance each other : if therefore that point be supported,...
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Philosophy in Sport Made Science in Earnest: Being an Attempt to Illustrate ...

John Ayrton Paris - Amusements - 1827 - 924 pages
...gravity coincide, or fall in the same spot." " I now remember," cried Tom, " that the centre of gravity is that point, about which all the parts of a body exactly balance each other." " Now you are right ; it is, in other words, that point in which the whole weight, or gravitating influence,...
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Book of lessons for the use of schools, Book 5

Ireland commissioners of nat. educ - 1835 - 398 pages
...called its centre of magnitude, that is, the centre of its mass or bulk. The centre of gravity is the point about which all the parts of a body exactly...other, in every position of the body ; if therefore this point is supported, the body will not fall. When a boat is in danger of being upset, it is dangerous...
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Conversations on Natural Philosophy: in which the Elements of that Science ...

Mrs. Marcet (Jane Haldimand) - Physics - 1836 - 540 pages
...direction. We have noticed the centres of magnitude and of motion; but I have not yet explained to you what is meant by the centre of gravity. It is that...all the parts of a body exactly balance each other; if, therefore, that point be supported, the body will not fall. Do you understand this? EMILY. I think...
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Fifth Book of Lessons for the Use of the Irish National Schools

Readers (Elementary) - 1836 - 424 pages
...called its centre of magnitude, that is, the centre of its mass or bulk. The centre of gravity is the point about which all the parts of a body exactly...other, in every position of the body ; if therefore this point is supported, the body will not fall. When a boat is in danger of being upset, it is dangerous...
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Conversations on natural philosophy, by the author of Conversations on chemistry

Jane Marcet - 1839 - 544 pages
...direction. We have noticed the centres of magnitude and of motion ; but I have not yet explained to you what is meant by the centre of gravity. It is that...all the parts of a body exactly balance each other ; if, therefore, that point be supported, the body will not fall. Do you understand this ? EMILY. I...
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The Panorama of Science: Or, a Guide to Knowledge

George Grant - Knowledge and learning - 1849 - 320 pages
...in the same line of direction. We noticed the centres of magnitude and of motion, but we have not as yet explained what is meant by the centre of gravity....which the parts are heaviest ; therefore, whenever tbe centre of gravity is unsupported the body must fall. This sometimes happens with an over-loaded...
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Philosophy in Sport Made Science in Earnest: Being an Attempt to Implant in ...

John Ayrton Paris - Amusements - 1857 - 622 pages
...magnitude and gravity coincide, or fall in the same spot." " I now remember that the centre of gravity is that point about which all the parts of a body exactly balance each other." " Now you are right ; it is, in other words, that point in which the whole weight, or gravitating influence,...
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A Treatise on Arithmetic, Combining Analysis and Synthesis: Adapted to the ...

James Stewart Eaton - Arithmetic - 1857 - 376 pages
...all bodies to fall towards the centre of the earth. 5OS. The centre of gravity of a body is " the point about which all the parts of a body exactly balance each other, so that when that point is supported, the whole body is supported." In a body of uniform density the...
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