A Plain Elementary and Practical System of Natural Experimental Philosophy: Including Astronomy and ChronologyHopkins and Earle, 1809 - 538 страници |
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Страница 23
... proportional to the moving force ; which must always be the case . ATTRACTION and REPULSION are properties of bodies , whereby they accede to , or recede from , each other . This property was originally given to matter by the omnipotent ...
... proportional to the moving force ; which must always be the case . ATTRACTION and REPULSION are properties of bodies , whereby they accede to , or recede from , each other . This property was originally given to matter by the omnipotent ...
Страница 26
... proportional to the quantity of attracting surface in contact with the fluid . Now according to this law , the smallest tube can raise but half the quan- tity of fluid suspended by the other , as the number of the particles in its ...
... proportional to the quantity of attracting surface in contact with the fluid . Now according to this law , the smallest tube can raise but half the quan- tity of fluid suspended by the other , as the number of the particles in its ...
Страница 75
... proportional to the quantity of matter in the attracting bodies . 4. It decreases in strength , as the squares of the distances from the center increase . From the first of these laws we learn , that there is no such thing as absolute ...
... proportional to the quantity of matter in the attracting bodies . 4. It decreases in strength , as the squares of the distances from the center increase . From the first of these laws we learn , that there is no such thing as absolute ...
Страница 76
... proportional to the number of particles in the bases of the cones AB and DE , or the areas of these bases ; which areas are as the squares of the distances from C respectively , as is evident from the third law , above mentioned . And ...
... proportional to the number of particles in the bases of the cones AB and DE , or the areas of these bases ; which areas are as the squares of the distances from C respectively , as is evident from the third law , above mentioned . And ...
Страница 79
... proportional to it . 3. When one body acts upon another , its action is equalled by the contrary reaction of the other . Or , ac- tion and reaction are equal and contrary . The first of these laws depends upon the vis iner . tiæ of ...
... proportional to it . 3. When one body acts upon another , its action is equalled by the contrary reaction of the other . Or , ac- tion and reaction are equal and contrary . The first of these laws depends upon the vis iner . tiæ of ...
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Често срещани думи и фрази
altitude angle of incidence angle of refraction aphelion appear apsis atmosphere attraction axis called cause central force circle colour comets concave concave lens converge convex lens degree denser medium descend diameter direction diverge earth ecliptic elastic electricity ellipsis equal equator eye-glass fall fluid focal distance focus glass globe greater greatest half heat Hence hole horizon increased inversely Jupiter latitude length less mean mercury meridian mirror moon moon's motion move nearer node object observed octave orbit parabola parallax parallel particles pass perpendicular plane Plate pole pressure produced projectile proportional quadrature quantity of matter radiant point radius rays of light reflected reflexion retina revolution revolving right ascension round side sine solar sound space specific gravity square root star star's string sun's superior planets supposed surface syzygies tance tangent telescope thereby tion tube velocity vessel vibrations weight whole