Elementary Introduction to Practical Mechanics: Illustrated by Numerous ExamplesLongmans, 1870 - 324 страници |
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Страница 5
... called the freezing point . Moreover , boiling water in free contact with the air also keeps at a constant temperature ( at least when the barometer stands . * Water , near freezing point , is a conspicuous exception . at a given height ) ...
... called the freezing point . Moreover , boiling water in free contact with the air also keeps at a constant temperature ( at least when the barometer stands . * Water , near freezing point , is a conspicuous exception . at a given height ) ...
Страница 6
... called the boiling point , viz . , when the barometer stands at 30 inches . These two points being fixed , the graduation is arbitrary . The scale of Fahren- heit's thermometer ( which is commonly used in England ) is constructed by ...
... called the boiling point , viz . , when the barometer stands at 30 inches . These two points being fixed , the graduation is arbitrary . The scale of Fahren- heit's thermometer ( which is commonly used in England ) is constructed by ...
Страница 8
... called the Modulus of Elasticity . It is found that all substances obey this law when the degree of extension does not exceed certain limits ; the limits are different in different substances , and in many are very narrow . It appears ...
... called the Modulus of Elasticity . It is found that all substances obey this law when the degree of extension does not exceed certain limits ; the limits are different in different substances , and in many are very narrow . It appears ...
Страница 18
... called the unit of work ; according to the practice of English writers it is defined as follows : - Def . The work done when a force of 1 Ib . is exerted through a space of 1 ft . in the direction of the force is called a unit of work ...
... called the unit of work ; according to the practice of English writers it is defined as follows : - Def . The work done when a force of 1 Ib . is exerted through a space of 1 ft . in the direction of the force is called a unit of work ...
Страница 23
... called the modulus of the machine ; the following table , taken from General Morin's Aide - Mémoire de Mécanique Pratique , gives the value of K for different classes of steam engines : - TABLE VI . MODULI OF STEAM ENGINES . Value of K ...
... called the modulus of the machine ; the following table , taken from General Morin's Aide - Mémoire de Mécanique Pratique , gives the value of K for different classes of steam engines : - TABLE VI . MODULI OF STEAM ENGINES . Value of K ...
Често срещани думи и фрази
accelerative effect angle of resistance angular angular velocity axis axle beam body brickwork cast iron centre of gravity circle circumference coefficient of friction Crown 8vo cubic foot curve cylinder described determine the number diameter direction distance draw Edition engine epicycloid equal equation equilibrium expended extrados forces acting formula given hence horizontal horse-power inclined inclined plane last Example length limiting angle line of resistance mass middle point minute moment of inertia motion moving number of feet number of units oscillation P₁ parallel forces perpendicular plane pressure principle of moments Prop pulley radius raised reaction represent respectively rest resultant right angles rope round screw sliding space square inch steam suppose surface teeth thick thread tion triangle vertical virtual velocities vols wall weight wheel Woodcuts wrought iron
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