Abstract
THE idea of using the concave surface of an umbrella as a star map is excellent, but, of course, not new. The portability and convenience of manipulation of such a stellar guide are obvious advantages, while the aspect in which the constellations are seen, unlike the view in a celestial globe, corresponds to the reality. The actual construction of such a chart of the sky might quite well form part of the practical work of every elementary course of astronomy.
An Easy and Concise Guide to the Starry Heavens, arranged as a Companion to the Umbrella Star Map and Revolving Star Dome for Instruction in Astronomy.
By D. McEwan. Pp. 137. (London: Kegan Paul, Trench, Trübner and Co., Ltd., 1910.) Price 5s.
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An Easy and Concise Guide to the Starry Heavens, arranged as a Companion to the Umbrella Star Map and Revolving Star Dome for Instruction in Astronomy . Nature 83, 485 (1910). https://doi.org/10.1038/083485a0
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DOI: https://doi.org/10.1038/083485a0