The British encyclopedia, or, Dictionary of arts and sciences, 5. kötet |
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. oldal
... axis of the earth does . From what has been said , it is evident that the Moon can never be observed pre- cisely in the ecliptic , but twice in every period ; that is , when she enters the nodes . When she is at her greatest distance ...
... axis of the earth does . From what has been said , it is evident that the Moon can never be observed pre- cisely in the ecliptic , but twice in every period ; that is , when she enters the nodes . When she is at her greatest distance ...
. oldal
William Nicholson. NUTATION , in astronomy , a kind of tremulous motion of the 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 ...
William Nicholson. NUTATION , in astronomy , a kind of tremulous motion of the 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 ...
. oldal
... axis . To prove whether object - glasses be well cen- tered , hold the glass at a due distance from the eye , and ... axis shorter than its middle diameter , being formed by the rotation of an ellipse about the shorter axis . The ...
... axis . To prove whether object - glasses be well cen- tered , hold the glass at a due distance from the eye , and ... axis shorter than its middle diameter , being formed by the rotation of an ellipse about the shorter axis . The ...
. oldal
... axis , H FI , and be moveable about a joint fixed to it at F , so that the plane of the sector may be always parallel to the axis , HI , which being parallel to the axis of the OBSERVATORY .
... axis , H FI , and be moveable about a joint fixed to it at F , so that the plane of the sector may be always parallel to the axis , HI , which being parallel to the axis of the OBSERVATORY .
. oldal
... axis , H I , till the plane of it be successively directed , first to one of the stars , and then to another , it is easy to move the sector about the joint , F , into such a position , that the arch , A B , when fixed , shall take in ...
... axis , H I , till the plane of it be successively directed , first to one of the stars , and then to another , it is easy to move the sector about the joint , F , into such a position , that the arch , A B , when fixed , shall take in ...
Gyakori szavak és kifejezések
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