Winchell, Alexander, 1824-1891 · Chicago, S.C. Griggs and company · leaf 143
contraction of the nebula is therefore neglected. Butcontraction would proceed during whatever period mightbe occupied in the formation of the ring. We may con-sider, therefore, what would result on the assumption thatno ringlet, after the first, would leave the nebula untilentirely equilibrated… … Fig. 28, Illustrating the Determination of the Width of a Nebulous Ring. conditions limiting and determining the width of the ringproduced. Let a h (Figure 28) represent a segment of aslender ringlet just abandoned, having the slight intervala k, separating it from the new periphery of the…
Nebular hypothesis · Cosmogony
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