Astronomy Principles and Practice - A E Roy and D Clarke

The etymology of the word ‘Astronomy’ implies that it was the discipline involved in ‘the arranging
of the stars’. Today we might say that astronomy is our attempt to study and understand celestial
phenomena, part of the never-ending urge to discover order in nature. We do not know who were
the first astronomers—what we do know is that the science of astronomy was well advanced in parts
of Europe by the middle of the third millennium BC and that the Chinese people had astronomical
schools as early as 2000 BC. In all ages, from the burgeoning of man’s intelligence, there have been
people fascinated by the heavens and their changing aspect and these people, as far as their cultural
environment has allowed them, have tried to formulate cosmologies. We are no different today.

Direct download - Téléchargement direct - التحميل المباشر 

- See more at: http://www.5izanati.com/