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Books > Science & Mathematics > Astronomy, space & time > Observatories, equipment & methods
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Unusual Telescopes (Paperback, New Ed)
Loot Price: R1,451
Discovery Miles 14 510
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Unusual Telescopes (Paperback, New Ed)
Expected to ship within 12 - 17 working days
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Excellence in observation is crucial to astronomy. Optical
designers, engineers and astronomers have tried all kinds of novel
ways to improve telescope design, in the quest for better and more
accurate telescopes. In this book, Peter L. Manly surveys more than
150 unusual telescope designs. They are all built by amateur and
professional astronomers to suit some special need. This survey
includes an inflatable telescope, and one with a liquid mirror.
Every so often, a neglected design comes back into fashion: the
largest telescopes now under construction use the alt-azimuth
design that was ignored for over a century, and liquid mirror
telescopes can be used for zenithal astronomy. The author shows why
a particular engineering approach makes each telescope unique, and
explains the rationale behind the design. The effects on telescope
performance are also discussed where possible. This is not just a
collection of weird and wonderful devices that proved to be false
starts: the author includes the first instrument to measure star
diameters, and the first useful radio telescope. This book is a
resource and stimulus for anyone who likes to build astronomical
telescopes.
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