To the moon and back in ninety days : a thrilling narrative of blended science and adventure (1922)
Brown, John Young, 1858-1921, Lunar Publishing Company. pbl · Providence, Kentucky : Lunar Publishing Company · leaf 120
es,regardless of mass or density, obey the same law whendescending in a vacuum. I have no inclination to want to ask unnecessaryquestions, interrupted Mr. Vanderlip, but what is avacuum? A vacuum, responded Prof. Monahan, is unoc-cupied space—space in which there is not even thevestige of air.… … FIG 22. TRIFID NEBULA IN SAGITARIUS. (Yerkes Observatory.) BACK IN NINETY DAYS 71 And it is wonderful what a wholesome effect theseexercises produced. All the fears of those who the daybefore refused to subordinate themselves to authority-vanished, and not a word was again said in regaixi…
Astronomy
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