 | Mrs. Marcet (Jane Haldimand) - 1821 - عدد الصفحات: 366
...the axle; if this be done without a wheel to turn the. axle, no mechanical assistance is received. The axle without a wheel is as impotent as a single...the axle, as it is further from the centre of motion : for the wheel describes a great circle in the same space of time that the axle describes a small... | |
 | Mrs. Marcet (Jane Haldimand) - 1821 - عدد الصفحات: 350
...the axle ; if this be done without a wheel to turn the axle, no mechanical assistance is re»ejved. The axle without a wheel is as impotent as a single...immediately find the bucket is raised with much less cPficulty. The velocity of the circumference of the wheel is as much greater than that of the axle,... | |
 | Mrs. Marcet (Jane Haldimand), John Lauris Blake - 1826 - عدد الصفحات: 308
...axle ; if this be done without a wheel to turn the axle, no mechanical assistance is received. Tiie axle without a wheel is as impotent as a single fixed...the axle, as it is further from the centre of motion : for the wheel describes a great circle in the same space of time that the axle describes a small... | |
 | 1832 - عدد الصفحات: 642
...this Fig. S2. Fig. 33. be done without a wheel to turn the axle, no mechanical assistance is received. The axle without a wheel is as impotent as a single...the bucket is raised with much less difficulty. The axle acts the part of the shorter arm of the lever, the wheel that of the longer arm. The velocity... | |
 | 1832 - عدد الصفحات: 640
...this Fig. 32. Fig. 33. be done without a wheel to turn the axle, no mechanical assistance is received. The axle without a wheel is as impotent as a single...pulley, or a lever, whose fulcrum is in the centre ; tmt add the wheel to the axle, and you will immediately find the bucket is raised with much less... | |
 | Ireland commissioners of nat. educ - 1835 - عدد الصفحات: 398
...the axle ; if this be done without a wljeel to turn the axle, no mechanical assistance is received . The axle without a wheel is as impotent as a single fixed pulley, or lever, whose fulcrum is in the centre ; but add the wheel to the axle, and you will immediately find,... | |
 | Mrs. Marcet (Jane Haldimand), John Lauris Blake - 1836 - عدد الصفحات: 540
...round the axle; if this be done without awheel to turn the axle, no mechanical assistance is received. The axle without a wheel is as impotent as a single'...the bucket is raised with much less difficulty. The axle acts the part of the shorter arm of the lever, the wheel that of the longer arm. The velocity... | |
 | 1836 - عدد الصفحات: 424
...round, the axle; if this be done without a wheel to turn the axle, no mechanical assistance is received. The axle without a wheel is as impotent as a single fixed pulley, or lever, whose fulcrum is in the centre ; but add the wheel to the axle, and you will immediately find... | |
 | Mrs. Marcet (Jane Haldimand) - 1837 - عدد الصفحات: 358
...the axle, no mechanical assistance is received. The axle without a wheel is as impotent as a sing/e fixed pulley, or a lever, whose fulcrum is in the...the axle, as it is further from the centre of motion : for the wheel describes a great circle in the same space of time that the axle describes a small... | |
 | Richard Green Parker - 1838 - عدد الصفحات: 266
...power being compensated by velocity. It is evident (from the iI3Ii. The principle upon Fij. 32. :ity of the circumference of the wheel is as much greater...the axle as it is further from the centre of motion ; for the wheel describes a great circle in the same time that the axle describes a small one; therefore... | |
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... time that the axle describes a small one, therefore the power is increased in the same proportion as the circumference of the wheel is greater than that of the axle. If the velocity of the wheel is... 
