Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
the centrif-ugal force is greater than atL and L; and greater at L andL than at S and S; while atthe extremities of the axis Ait is nothing. Hence, the rela-tive intensity of this force, in different parts of the sphere, may berepresented by the relative length of the several arrows; which showthat… … Earth 26 miles. Mars 25 ^ Jupiter 6,000 miles. Saturn 7,500 Great magnitude and rapid rotation give Jupiter and Saturn a largediflference between their equatorial and polar diameters. SSI. Figure 8.—Venus as morning and evening star. —Let the student suppose himself to stand with his face to the…
Physics · Astronomy
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