Brocklesby, John, 1811-1889. [from old catalog] · New York, Sheldon and company · leaf 34
tly in their eccentricity; one being almost a circle,and the other very oval. 1. Eccentric, from ex out of, and centrum centre, (Latin) out of thtcentre. Construct an ellipse 1 What is meant by the term eceentricity 1 22 ASTRONOMY. 19. A Sphere. A sphere is a solid, bounded by acurved surface,… … A SPHERE WITH ITS SECTIONS. sphere. Thus in Fig. 11, representing a sphere, thepoints D, 0, L, A, E, H, N, &c, are all equally distantfrom the centre C. DE and AB, are diameters, andCP, CL, CA, CB, &c, are each a radius. If a plane passes through a sphere, any section itmakes with the…
Astronomy
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