The British Encyclopedia, Or Dictionary of Arts and Sciences: Comprising an Accurate and Popular View of the Present Improved State of Human Knowledge : Illustrated with Upwards of 150 Elegant Engravings. N - R. 5Longman, 1809 - 680 pages |
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Results 1-5 of 99
Page 17
... fixed upon the same lines of an object seen through the telescope . OBJECTIVE line , in perspective , is any line drawn on the geometrical plane , whose representation is sought for in a draught or picture : and the objective plane is ...
... fixed upon the same lines of an object seen through the telescope . OBJECTIVE line , in perspective , is any line drawn on the geometrical plane , whose representation is sought for in a draught or picture : and the objective plane is ...
Page 18
... fixed in the plane of the meridian , he began to verify his catalogue of the fixed stars , which had hitherto depended altogether on the dis- tances measured with the sextant , after a new and very different manner , viz , by tak ing ...
... fixed in the plane of the meridian , he began to verify his catalogue of the fixed stars , which had hitherto depended altogether on the dis- tances measured with the sextant , after a new and very different manner , viz , by tak ing ...
Page 19
... fixed to the middle of the arch at D. Let this radius be applied to the side of an axis , HF I , 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 ...
... fixed to the middle of the arch at D. Let this radius be applied to the side of an axis , HF I , 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 ...
Page 20
... fixed , shall take in both the stars in their passage , by the plane of it , provided the difference of their declinations does not exceed the arch , A B. Then , having fixed the plane of the sector a little to the westward of both the ...
... fixed , shall take in both the stars in their passage , by the plane of it , provided the difference of their declinations does not exceed the arch , A B. Then , having fixed the plane of the sector a little to the westward of both the ...
Page 21
... fixed , is about two feet and a half long , tapering gradually toward its ends , which terminate in cylinders well turned and smoothed . The telescope , CD , which is about four feet , and an inch and a half diameter , is connected with ...
... fixed , is about two feet and a half long , tapering gradually toward its ends , which terminate in cylinders well turned and smoothed . The telescope , CD , which is about four feet , and an inch and a half diameter , is connected with ...
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acid action ammonia angle angle of incidence animal appear axis benevolence body botany called calyx centre chyle circle class and order colour common compound connected consequently consists convex convex lens corolla degree distance distilled drupe Dubl earth ecliptic Edin effect employed equal Essential character feelings feet fixed flowers fluid fossil genus glass heat Hence ideas inches instrument iron ject Jussieu kind length less light Lond manner matter means ment metal mind Monogynia class motion mucilage muriatic muriatic acid Natural order nitre nitric acid object observed organs oxide oxygen parabola parallel pass perpendicular person piece plane plants Plate pleasures potash pound principle produced proportion quantity racter rays receiver refraction seeds sensation sensible side solution sometimes species specific gravity stances substances sulphur supposed surface term tincture tion Triandria tube vegetable vessels volatile oils weight