Recreations in astronomy : with directions for practical experiments and telescopic work (1879)
Warren, Henry White, 1831-1912 · New York : Harper & Brothers · leaf 297
e is no deflection.The mean deflection cau>cd by themoon at rising or setting is 0.Ol74;by the sun, 0.00S. Great results areexpected from this instrument hardlyknown as yet: among others, whethergravitation acts instantly or consumestime in coming from the sun. This will be shown by the timeof… … Pig. S2.—Horizontal Pendulum. SUMMARY OF LATEST DISCOVERIES, ETC, 273 f Unseen Stars. — Prom careful examination, il ap-pears that three-fourths of the light on a fine starlight nightcomes from stars that cannot be discerned by the naked eye.The whole amount of star light is about one-eightieth of…
Astronomy
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