Elements of Natural Philosophy, Volume 1 |
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Page 16
The intensity of heat and light emanating from a point , or from a uniformly
radiating spherical surface , diminishes according to the inverse square of the
distance from the centre . Hence the rate at which a planet receives heat and light
from ...
The intensity of heat and light emanating from a point , or from a uniformly
radiating spherical surface , diminishes according to the inverse square of the
distance from the centre . Hence the rate at which a planet receives heat and light
from ...
Page 34
Consider a spherical surface within the body , with its centre at the fixed point C.
All points of this sphere attached to the body will move on a sphere fixed in space
. Hence the construction of 91 may be made , only with great circles instead of ...
Consider a spherical surface within the body , with its centre at the fixed point C.
All points of this sphere attached to the body will move on a sphere fixed in space
. Hence the construction of 91 may be made , only with great circles instead of ...
Page 36
This ( as all rolling of cones ) is exhibited best by taking the intersection of each
with a spherical surface . Thus we see that if a spherical polygon turns about its
angular points in succession , always keeping on the spherical surface , and if
the ...
This ( as all rolling of cones ) is exhibited best by taking the intersection of each
with a spherical surface . Thus we see that if a spherical polygon turns about its
angular points in succession , always keeping on the spherical surface , and if
the ...
Page 43
... and an ellipsoid remains a surface of which every plane section is an ellipse ;
that is , remains an ellipsoid . 141. The ellipsoid which any surface of the body
initially spherical becomes in the altered condition , may , to avoid KINEMATICS .
... and an ellipsoid remains a surface of which every plane section is an ellipse ;
that is , remains an ellipsoid . 141. The ellipsoid which any surface of the body
initially spherical becomes in the altered condition , may , to avoid KINEMATICS .
Page 65
Also , as will be seen farther on , a perfectly smooth spherical body , made up of
concentric shells , each of uniform material and density throughout , if made to
revolve about an axis , will , in spite of impressed forces , revolve with uniform ...
Also , as will be seen farther on , a perfectly smooth spherical body , made up of
concentric shells , each of uniform material and density throughout , if made to
revolve about an axis , will , in spite of impressed forces , revolve with uniform ...
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acceleration according acting action amount angle angular applied attraction axes axis body called centre centre of inertia circle component condition consider constant corresponding couple course curvature curve denote density described determined direction displacement distance divided effect elastic elements energy equal equations equilibrium evidently expression figure fixed fluid force friction give given gravity harmonic Hence important increase infinitely small instant interval kinetic length less mass matter mean measured method motion moving natural normal observation opposite parallel particle passing path perpendicular plane portion position potential practical pressure principle problem produce projection proportional quantity radius reference relative remain remarkable respectively rest resultant right angles rigid rotation round sides simple solid space spherical square straight strain stress suppose surface theory turned uniform unit velocity weight whole wire