t a scale that the errors of observa- The elements of this diurnal component are well tion may easily exceed the magnitude of the quantities meter in its center. The rays of light from the star known, and it can be eliminated completely from an to be observed. Fortunately the thorough understand-… … not well known. In fact, ment is supported at two a better knowledge of points in such a way that them constitutes one of strains in the supporting the most pressing problems in astronomy, and it is truss cannot by any possibility induce strains in the ing of the problem, reached through bitter…
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