American Edition of the British Encyclopedia: Or, Dictionary of Arts and Sciences ; Comprising an Accurate and Popular View of the Present Improved State of Human Knowledge, Volumen9Mitchell, Ames and White, 1821 |
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... axis of the earth does . From what has been said , it is evident that the moon can never be observed precisely in the ecliptic but twice in every period , that is , when she enters the nodes . When she is at her greatest distance from ...
... axis of the earth does . From what has been said , it is evident that the moon can never be observed precisely in the ecliptic but twice in every period , that is , when she enters the nodes . When she is at her greatest distance from ...
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... axis of the earth , whereby , in each annual revolution , it is twice inclined to the ecliptic , and as often returns to its former position . Sir Isaac Newton observes , that the moon has the like motion , only very small , and ...
... axis of the earth , whereby , in each annual revolution , it is twice inclined to the ecliptic , and as often returns to its former position . Sir Isaac Newton observes , that the moon has the like motion , only very small , and ...
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... axis shorter than its middle diameter , being formed by the rotation of an ellipse about the shorter axis . The oblateness of the earth refers to the diminution of the polar axis in respect of the equatorial . The ratio of these two axes ...
... axis shorter than its middle diameter , being formed by the rotation of an ellipse about the shorter axis . The oblateness of the earth refers to the diminution of the polar axis in respect of the equatorial . The ratio of these two axes ...
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... axis H I , which being parallel to the axis of the earth , the plane of the sector will always be parallel to the plane of some hour circle . Let a telescope , C E , be moveable about the centre , C , of the arch A B , from one end of ...
... axis H I , which being parallel to the axis of the earth , the plane of the sector will always be parallel to the plane of some hour circle . Let a telescope , C E , be moveable about the centre , C , of the arch A B , from one end of ...
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... axis ; which axis must be so supported , that what is called the line of collimation , or line of sight of the telescope , may move in the plane of the meridian . This instrument is made of various sizes , and of large di- mensions , in ...
... axis ; which axis must be so supported , that what is called the line of collimation , or line of sight of the telescope , may move in the plane of the meridian . This instrument is made of various sizes , and of large di- mensions , in ...
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AMER /E OF THE BRITISH ENCY OR, Volumen10 William 1753-1815 Nicholson Sin vista previa disponible - 2016 |
Términos y frases comunes
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