Richard A Proctor eBooks
eBooks di Richard A Proctor di Formato Mobipocket
Half Hours with the Stars . E-book. Formato Mobipocket
Richard A. Proctor
edizioni Richard A. Proctor collana , 2015
It is very easy to gain a knowledge of the stars, if the learner sets to work in the proper manner. But he commonly meets with a difficulty at the outset of his task. He provides himself with a set of the ordinary star maps, and then finds himself at a loss how to make use of them. Such maps tell him nothing of the...
Half hours with the telescope. E-book. Formato Mobipocket
Richard A. Proctor
edizioni Richard A. Proctor collana , 2015
The object which the Author and Publisher of this little work have proposed to themselves, has been the production, at a moderate price, of a useful and reliable guide to the amateur telescopist. Among the celestial phenomena described or figured in this treatise, by far the larger number may be profitably examined...
The laws of luck. E-book. Formato Mobipocket
Richard A. Proctor
edizioni Richard A. Proctor collana , 2015
To the student of science, accustomed to recognise the operation of law in all phenomena, even though the nature of the law and the manner of its operation may be unknown, there is something strange in the prevalent belief in luck. In the operations of nature and in the actions of men, in commercial transactions and...