The mechanical Euclid, containing the elements of mechanics and hydrostatics1837 |
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Página 26
... exert in consequence of this tendency , is called their WEIght . wEIGHT . 5. Forces may produce either rest or motion in bodies . When forces produce rest , they balance each other ; they are in equilibrium ; they destroy each other's ...
... exert in consequence of this tendency , is called their WEIght . wEIGHT . 5. Forces may produce either rest or motion in bodies . When forces produce rest , they balance each other ; they are in equilibrium ; they destroy each other's ...
Página 29
... exerted at one extremity of the string will produce at the other extremity the same effect as if the force had acted directly . 11 . If in a system which is in equilibrium , there be substituted for the force acting at any point , an im ...
... exerted at one extremity of the string will produce at the other extremity the same effect as if the force had acted directly . 11 . If in a system which is in equilibrium , there be substituted for the force acting at any point , an im ...
Página 30
... exerts , the equilibrium will not be disturbed . 13. A perfectly hard and smooth surface , acted on at any point by any force , exerts a reaction which is perpendicular to the surface at that point ; and if the surface be supposed to be ...
... exerts , the equilibrium will not be disturbed . 13. A perfectly hard and smooth surface , acted on at any point by any force , exerts a reaction which is perpendicular to the surface at that point ; and if the surface be supposed to be ...
Página 37
... exerted by the hand , the Weight is the weight of the stone . We have an example of a double lever of this kind in a pair of nutcrackers . The Power is the force of the hand exerted at the handles ; the Weight is the force with which ...
... exerted by the hand , the Weight is the weight of the stone . We have an example of a double lever of this kind in a pair of nutcrackers . The Power is the force of the hand exerted at the handles ; the Weight is the force with which ...
Página 38
... exerted produces its effect at an increased distance from the fulcrum . We have an example of a lever of this kind in the anatomy of the fore - arm of a man , when he raises a load with it , turning at the elbow . The elbow is the ...
... exerted produces its effect at an increased distance from the fulcrum . We have an example of a lever of this kind in the anatomy of the fore - arm of a man , when he raises a load with it , turning at the elbow . The elbow is the ...
Otras ediciones - Ver todas
The Mechanical Euclid, Containing the Elements of Mechanics and Hydrostatics William Whewell Sin vista previa disponible - 2015 |
Términos y frases comunes
ABCD Accelerating Force algebraical quantities Axioms of Statics axis balance body falling body moving center of gravity column of fluid deductive deductive reasoner definition density destroy direction equilibrium exerted fluid displaced forces acting fulcrum Geometry heavy fluid Hence horizontal plane horizontal pressures hydrostatic balance Hydrostatics idea immersed inclined plane INDUCTIVE PRINCIPLE lever magnitude manner mathematical mercury opposite P's velocity parallel particle perpendicular piston portions pressure on LM prism produce proportion pully Q. E. D. PROP quantity of matter ratio reasoning represent rest right angle SCHOLIUM sides space described specific gravity straight line string supposed surface pressed tical tions triangles truth tube uniform force University of Cambridge upper surface valve velocity acquired vertical column vertical line vessel weight
Pasajes populares
Página 22 - A plane is perpendicular to a plane, when the straight lines drawn in one of the planes perpendicular to the common section of the two planes, are perpendicular to the other plane. 5. The inclination of a straight line to a plane...
Página 46 - If three forces, represented in magnitude and direction by the sides of a triangle, act on a point, they will keep it at rest.
Página 9 - Sacred History, from the Creation of the World to the Destruction of Jerusalem. With Questions for Examination.
Página 18 - ... if the multiple of the first be equal to that of the second, the multiple of the third is also equal to that of the fourth : or, if the multiple of the first be greater than that of the second, the multiple of the third is also greater than that of the fourth.
Página 47 - There is an equilibrium upon the wheel and axle when the power is to the weight as the radius of the axle to the radius of the wheel.
Página 20 - IF a straight line be drawn parallel to one of the sides of a triangle, it shall cut the other sides, or those produced, proportionally; and if the sides, or the sides produced, be cut proportionally, the straight line which joins the points of section shall be parallel to the remaining side of the triangle...
Página 97 - ... gravity of the fluid : the specific gravity of the body. Prop. 10. To describe the hydrostatic balance, and to shew how to find the specific gravity of a body by means of it, 1st, when its specific gravity is greater than that of the fluid in which it is weighed ; 2ndly, when it is less.