The Mechanical Principles of Engineering and ArchitectureJ. Wiley, 1875 - 699 стор. |
З цієї книги
Результати 1-5 із 84
Сторінка viii
... do not , the space is understood to be so small , that the direction of the pressure may be supposed to remain parallel to itself whilst that space is described . than the aggregate work of those which tend to retard viii PREFACE .
... do not , the space is understood to be so small , that the direction of the pressure may be supposed to remain parallel to itself whilst that space is described . than the aggregate work of those which tend to retard viii PREFACE .
Сторінка 2
... , in 1824. The temperature of the water is supposed to be 62 Fahrenheit , the weight to be taken in air , and the barometer to stand at 30 inches . A system of pressures being in equilibrium , let any 2 THE UNIT OF PRESSURE .
... , in 1824. The temperature of the water is supposed to be 62 Fahrenheit , the weight to be taken in air , and the barometer to stand at 30 inches . A system of pressures being in equilibrium , let any 2 THE UNIT OF PRESSURE .
Сторінка 23
... supposed to be made up of exceedingly narrow rectangular strips or bands , parallel to BC , each of which will be bisected by the line AD ; for by similar triangles PR : DB :: AR : AD :: RQ : DC , therefore , alternando , PR : RQ :: DB ...
... supposed to be made up of exceedingly narrow rectangular strips or bands , parallel to BC , each of which will be bisected by the line AD ; for by similar triangles PR : DB :: AR : AD :: RQ : DC , therefore , alternando , PR : RQ :: DB ...
Сторінка 25
... supposed to be collected in their centre of gravity G ; the four weights will then be reduced to two , viz . 3A at G , and A at A , whose common centre of gravity is K , .. GK × 3A + A = GA × A , .. 4GK = GA or GK GA . * = [ Q.E.D. ] 27 ...
... supposed to be collected in their centre of gravity G ; the four weights will then be reduced to two , viz . 3A at G , and A at A , whose common centre of gravity is K , .. GK × 3A + A = GA × A , .. 4GK = GA or GK GA . * = [ Q.E.D. ] 27 ...
Сторінка 26
... supposed to be collected in and uniformly dis- tributed through that plane . It is in this sense only that we can speak with accuracy of the weight and the centre of gra- vity of a plane , whereas a plane being a surface only , and ...
... supposed to be collected in and uniformly dis- tributed through that plane . It is in this sense only that we can speak with accuracy of the weight and the centre of gra- vity of a plane , whereas a plane being a surface only , and ...
Зміст
91 | |
99 | |
106 | |
112 | |
121 | |
130 | |
137 | |
142 | |
148 | |
154 | |
163 | |
169 | |
194 | |
202 | |
213 | |
221 | |
227 | |
234 | |
241 | |
251 | |
257 | |
283 | |
368 | |
377 | |
383 | |
397 | |
405 | |
440 | |
446 | |
454 | |
471 | |
501 | |
510 | |
518 | |
520 | |
527 | |
540 | |
571 | |
632 | |
653 | |
675 | |
683 | |
691 | |
698 | |
Інші видання - Показати все
Загальні терміни та фрази
a₁ angle of resistance angular velocity axes axis beam body bordering upon motion centre of gravity circumference co-efficient compression conical surfaces corresponding crank crank arm cubic foot curve cylinder deflexion determined displaced fluid distance ditto driven wheel driving epicycloidal equal equation equilibrium evident exceedingly small extrados forces formula friction given horizontal hypocycloidal inclination inertia intersect involute lamina length limiting angle line of centres line of resistance load machine modulus moment of inertia moving n₁ n₂ neutral line observing obtain oscillation P₁ P₂ parallel passing perpendicular pitch circle plane point of application point of contact portion position radius repre respect resultant revolution revolve rupture space stability Substituting supposed surfaces of contact taken to represent tion tooth U₁ unguent vertical vis viva viva voussoirs wall weight whence it follows whilst whole