A moral and philosophical history of Comets ... including an accurate description of the present comet, etc PDF Download
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Author: H. LE CLERC (of Hampstead.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Book Description
Author: H. LE CLERC (of Hampstead.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
Get Book Here
Book Description
Author: H. Le Clerc
Publisher:
ISBN:
Category : Comets
Languages : en
Pages : 32
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Book Description
Author: H. Le Clerc
Publisher:
ISBN:
Category : Comets
Languages : en
Pages : 32
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Book Description
Author: John Russell Hind
Publisher:
ISBN:
Category : Astrometry
Languages : en
Pages : 218
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Book Description
Author: Tofigh Heidarzadeh
Publisher: Springer Science & Business Media
ISBN: 1402083238
Category : Science
Languages : en
Pages : 283
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Book Description
Although the development of ideas about the motion and trajectory of comets has been investigated piecemeal, we lack a comprehensive and detailed survey of ph- ical theories of comets. The available works either illustrate relatively short periods in the history of physical cometology or portray a landscape view without adequate details. The present study is an attempt to review – with more details – the major physical theories of comets in the past two millennia, from Aristotle to Whipple. My research, however, did not begin with antiquity. The basic question from which this project originated was a simple inquiry about the cosmic identity of comets at the dawn of the astronomical revolution: how did natural philosophers and astronomers define the nature and place of a new category of celestial objects – comets – after Brahe’s estimation of cometary distances? It was from this turning point in the history of cometary theories that I expanded my studies in both the pre-modern and modern eras. A study starting merely from Brahe and ending with Newton, without covering classical and medieval thought about comets, would be incomplete and leave the fascinating achievements of post-Newtonian cometology unexplored.
Author: Raymond Lyttleton
Publisher: Cambridge University Press
ISBN: 1107615615
Category : Science
Languages : en
Pages : 199
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Book Description
This 1953 book sets out some observational facts about comets and then accounts for their origin and explains how comet tails are formed.
Author: HISTORY.
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
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Book Description
Author: Nalin Chandra Wickramasinghe
Publisher: World Scientific
ISBN: 9814478741
Category : Science
Languages : en
Pages : 232
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Book Description
The idea that comets may be connected with the origin of life on Earth was considered heresy a few decades ago, with scientists shying away from this possibility as if from a medieval superstition. However the case that comets may have contributed at least the complex organic building blocks of life has become very strong, and mechanisms have now been identified whereby comets may incubate and transfer microbial life from one cosmic habitat to another in the Galaxy. The latter process cometary panspermia was pioneered by the late Sir Fred Hoyle and one of the present authors in the early 1980's. A theory that was once controversial is slowly gaining scientific respectability and support.The recent surge of interest in astrobiology has led to a spate of books in astrobiology — combining astronomy and biology — but in most of these, cometary panspermia is dealt with only cursorily. The present book sets out the case for cometary panspermia in a cogent way, combining evidence from space science, celestial mechanics, geology and microbiology. It should be an essential part of any university course on astrobiology, and also serve as a reference textbook for researchers in the field.
Author: Hans Rickman
Publisher: World Scientific
ISBN: 981322259X
Category : Science
Languages : en
Pages : 374
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Book Description
Since several decades, comets have been considered as key witnesses of solar system formation. Their nature has been explored using the modern arsenal of Earth- and space-based observations, and they hold a central place as dynamical arbiters of the planetary system in the new paradigm of solar system evolution known as the Nice Model. Thus, they have the potential to test the various ideas, using the detailed data recently gathered by the ESA/Rosetta mission. This requires an understanding of their origin and evolution, which form the subject of the present book. All the relevant issues are covered, describing both the background and the current frontiers of research.
Author: Julio A. Fernandez
Publisher: Springer Science & Business Media
ISBN: 1402034954
Category : Science
Languages : en
Pages : 386
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Book Description
Comets are small bodies, but of great cosmic relevance. Given its pristine nature, they may preserve valuable and unique information on thechemical and physical processes that took place in theearly solar system, and that may be occurring in the formation of other planetary systems. They might have even played a very important role in the origin of life on Earth. Beyond that, since ancient times comets have inspired awe, superstition, and also curiosity anddebate. Their sudden apparitions challenged the long-held view of the immutability of the heavens, which triggered a long debate on whether comets had a heavenly or terrestrial nature. Therefore, comets have a prominent role in the history of scienti?cthought, that goes back to the most ancient civilizations. The last apparition of comet Halley in 1986 was a landmark since it arouse a great expectation in the scienti?c community and in the public at large. For the ?rst time, a ?otilla of spacecrafts visited a comet. Agreat number of popular and technical books were written on Halley, and comets in general, around the mid-eighties. The interest in comets never subsided after Halley’s passage which is re?ected in the large volume of printed material on these bodies. I have taken the challenge to write a new book on comets that summarizes most of the recent advances on thesubject, including my own workdeveloped during the last 25 years.
