Star-land; being talks with young people about the wonders of the heavens (1899)
Ball, Robert Stawell, Sir, 1840- [from old catalog] · Boston and London, Ginn & company · leaf 38
Fig. 7.— This would beour finding the SunsDistance. WHY DISTANT THINGS LOOK SMALL. 25 They will not, indeed, make a little sketch such assufficed for our purpose. They make a calculationwhich is a much more accurate way of effecting truemeasurement. The astronomers know the size of theearth, and…
Astronomy
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