Transactions of the Cambridge Philosophical SocietyUniversity Press, 1822 |
من داخل الكتاب
النتائج 1-5 من 23
الصفحة 150
... ball 12.78 inches in diameter , suspended over the centre of a table in the construction of which iron was carefully excluded . In the middle of the table a circular hole was cut , 13.25 inches in diameter , so that the ball could be ...
... ball 12.78 inches in diameter , suspended over the centre of a table in the construction of which iron was carefully excluded . In the middle of the table a circular hole was cut , 13.25 inches in diameter , so that the ball could be ...
الصفحة 151
... ball was raised until it appeared to have no influence on the needle : it was then lowered , inch by inch , and the deviations at every inch carefully noted , until the ball had descended so far below the table as to cease influencing ...
... ball was raised until it appeared to have no influence on the needle : it was then lowered , inch by inch , and the deviations at every inch carefully noted , until the ball had descended so far below the table as to cease influencing ...
الصفحة 152
... ball . OZ is a vertical line , from the centre of the table , in which the centre of the ball is moved upwards or downwards ; and CB is a line drawn perpendicular to s Cn , and meeting OZ in B. According to the view of the subject which ...
... ball . OZ is a vertical line , from the centre of the table , in which the centre of the ball is moved upwards or downwards ; and CB is a line drawn perpendicular to s Cn , and meeting OZ in B. According to the view of the subject which ...
الصفحة 153
... ball above the plane of the table , or depths below it , at which the deviation ought to be nothing are obtained . The following table exhibits these heights in inches , and likewise the heights and depths actually observed at which the ...
... ball above the plane of the table , or depths below it , at which the deviation ought to be nothing are obtained . The following table exhibits these heights in inches , and likewise the heights and depths actually observed at which the ...
الصفحة 154
... ball above the compass , a horizontal line was drawn on the surface , as much below the great circle of the ball parallel to the horizon , as the centre of the needle was above the plane of the table ; and a scale , having the inches ...
... ball above the compass , a horizontal line was drawn on the surface , as much below the great circle of the ball parallel to the horizon , as the centre of the needle was above the plane of the table ; and a scale , having the inches ...
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
ABCD acid angle Apophyllite appearance axis ball beds carbonate of lime centre character chlorite schist clay slate cliffs coast colour compact composed considerable Cornwall Cove crystalline crystals cube cylinder decomposing decomposition described deviation direction distance district dyke earthy East equation examination exhibited Fellow felspar fissures formation fracture fragments function Galvanic gazometer granite granite veins granular green green-stone greywacké Helford river horizontal hornblende hydrogen inches instance intermixed irregular killas laminæ limestone Llanbabo Llaneilian Llanerchymedd Llanfaelog Llangefni Llanrhyddlad magnetic mass mica mineral muriate Nare point nature nearly needle North observed occur old red sandstone parallel particles passing perpendicular phenomena piston plane plate polarization porphyritic portion present pyroxene quartz quartz rock resembling Rhoscolyn schistose schorl serpentine side slaty South specimens steatite strata structure substance surface texture trace Trin ureters variety vertical whole wire