Library of Useful Knowledge: Natural philosophy, Volume 2Baldwin and Cradock, 1829 - Physics |
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Page xviii
... gravity , are in the same line of direction . Fig . 14 . We have noticed the centres of magnitude and of motion , but we have not yet explained what is meant by the centre of gravity . It is that point about which all the parts of a ...
... gravity , are in the same line of direction . Fig . 14 . We have noticed the centres of magnitude and of motion , but we have not yet explained what is meant by the centre of gravity . It is that point about which all the parts of a ...
Page xix
... centre of gravity , restores his equilibrium . A stick is poised on the tip of the finger , by supporting its centre of gravity , and it is for want of this support that spherical bodies roll down a slope . A sphere being perfectly ...
... centre of gravity , restores his equilibrium . A stick is poised on the tip of the finger , by supporting its centre of gravity , and it is for want of this support that spherical bodies roll down a slope . A sphere being perfectly ...
Page xx
... centre of gravity would be thrown out of the rod into the heaviest weight ( fig . 19 ) . SECTION III . - On the Mechanical Powers . We will now proceed to examine the mechanical powers . They are six in number , one or more of which ...
... centre of gravity would be thrown out of the rod into the heaviest weight ( fig . 19 ) . SECTION III . - On the Mechanical Powers . We will now proceed to examine the mechanical powers . They are six in number , one or more of which ...
Contents
POPULAR INTRODUCTIONS to NATURAL PHILOSOPHY By | i |
Page | xvii |
MARCET icx | 10 |
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acid action aperture appear ascer attraction axis ball battery body brass centre centre of gravity circle colours compass concave conductor convex convex lens copper cylinder degree diameter direction distance earth effect elec electric current electric fluid electroscope equal experiments Fahrenheit fixed flint glass focus force galvanic glass gravity heat horizontal hygrometer inch induction instrument intensity iron length lens lenses lever light magnet ment mercury metal motion move needle Newton north pole object object-glass obliquely observed opposite parallel particles passing perpendicular phenomena piece placed plane plate polarity portion position prism produced proportion pyrometer quantity rays reflected refraction refrangible rendered repulsion retina right angles ring round side south pole specific gravity spherical aberration steel substance surface telescope temperature theory thermometer thickness tion tricity tube velocity vertical voltaic weight wire zinc