A compendium of astronomy; containing the elements of the science, familiarly explained and illustrated, with the latest discoveries. Adapted to the use of schools and academies, and of the general reader (1850)
Olmsted, Denison, 1791-1859 · New York, R. B. Collins · leaf 77
the sides of the pail in consequence ofthe centrifugal force. The same principleis more strikingly illustrated by the annex-ed cut, (Fig. 15,) which represents anopen glass vessel suspended by a cord at-tached to its opposite sides, and passedthrough a staple in the ceiling of the room.A little… … 96. Why is it so necessary to ascertain accurately the semi-diameter of the earth ? In how many different ways is thiselement ascertained 1 Specify them. What is meant by thecentrifugal force ? Give an illustration. Describe figure 1«5. ASTRONOMICAL INSTRUMENTS. 65 center. The same effect is…
Astronomy
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