Being an amateur astronomer is great fun, with many different and interesting areas to get involved in. This complete reference provides a wealth of practical information covering all aspects of amateur astronomy. Organised thematically for ease of use, it covers observing techniques, telescopes and observatories, Internet resources, and the objects that can be studied. Those n...(展开全部)

Being an amateur astronomer is great fun, with many different and interesting areas to get involved in. This complete reference provides a wealth of practical information covering all aspects of amateur astronomy. Organised thematically for ease of use, it covers observing techniques, telescopes and observatories, Internet resources, and the objects that can be studied. Those n...(展开全部)

This new, thoroughly revised edition of the acclaimed Cambridge Encyclopedia of Language incorporates the major developments in language study which have taken place since the mid 1990s. Two main new areas have been added: the rise of electronic communication in all its current forms from email to texting, and the crisis affecting the world's languages, of which half are though...(展开全部)

Where did human language come from? How many languages are there? How do we acquire our first language or learn a second one? The highly acclaimed Cambridge Encyclopedia of Language by David Crystal answers these and other questions about language. From hieroglyphics to trucker talk, from Shakespeare in pidgin to sneezing in Tongan, this is a stimulating and richly illustrated ...(展开全部)

Following the steps of human reasoning and technology from prehistoric stone observatories to modern astrophysics, the reader of this inviting volume receives an excellent overview of the development of astronomy as science. Edited by Hoskin, the editor of Journal for the History of Astronomy, the book is a concise yet compelling record of human intellectual progress embracing ...(展开全部)

Following the steps of human reasoning and technology from prehistoric stone observatories to modern astrophysics, the reader of this inviting volume receives an excellent overview of the development of astronomy as science. Edited by Hoskin, the editor of Journal for the History of Astronomy, the book is a concise yet compelling record of human intellectual progress embracing ...(展开全部)

Amateur hour has arrived, and the audience is running the show In a hard-hitting and provocative polemic, Silicon Valley insider and pundit Andrew Keen exposes the grave consequences of today’s new participatory Web 2.0 and reveals how it threatens our values, economy, and ultimately the very innovation and creativity that forms the fabric of American achievement. Our most ...(展开全部)

Packed with color photographs, this comprehensive reference chronicles the history of astronomy. This extraordinary book traces humans' interaction with the endless wonders of the night sky. The authors, both expert astronomers, researched 29 locations worldwide, from Beijing's ancient observatory to the observatory in Puerto Rico that searches for alien radio signals. They als...(展开全部)