Go-To Telescopes Under Suburban Skies is the first book specifically written for amateur astronomers who own, or who are about to purchase, a computer-controlled ‘go-to’ telescope. The advantage of the ‘go-to’ capability is enormous – the telescope can be aimed at any object in the sky with great speed and accuracy – which is why these instruments are so popular. Making the realistic assumption that the observer is using a relatively small telescope and is observing from a backyard in a suburban area, this book provides literally hundreds more targets beyond those offered by the built-in ‘nightly tours’ that feature on the telescope’s computer tours. And instead of wasting many pages on maps and coordinates, it leads the computer to locate the targets, and so has room to suggest many more fascinating deep-sky objects and provide detailed observing lists and information about what's being viewed.
The beautiful spiral shells of these long-extinct marine invertebrates are among the most sought after and recognizable of fossils, yet little has been published about ammonites outside of geological journals. Neale Monks and Philip Palmer look at the latest ideas on ammonite biology and ecology to present this detailed picture of a once diverse and widespread group of animals. Though an ammonite looks like a nautilus, the animal inside the shell was most closely related to today's octopus, squid, and cuttlefish. The authors describe the evolution of ammonites and their relatives and explain how they created their shells and used them as flotation devices. All the major groups of ammonites are described and illustrated (as are many minor ones), and important material is included on anatomy, feeding, reproduction, and pathology. The 300-million-year existence of ammonites ended at around the same time that dinosaurs became extinct. Fortunately, ammonites were once so abundant that their fossilized shells can be readily found, and the authors provide a helpful guide to locating and collecting these unique fossils.
Here is a one-volume guide to just about everything computer-related for amateur astronomers! Today’s amateur astronomy is inextricably linked to personal computers. Computer-controlled "go-to" telescopes are inexpensive. CCD and webcam imaging make intensive use of the technology for capturing and processing images. Planetarium software provides information and an easy interface for telescopes. The Internet offers links to other astronomers, information, and software. The list goes on and on. Find out here how to choose the best planetarium program: are commercial versions really better than freeware? Learn how to optimise a go-to telescope, or connect it to a lap-top. Discover how to choose the best webcam and use it with your telescope. Create a mosaic of the Moon, or high-resolution images of the planets... Astronomy with a Home Computer is designed for every amateur astronomer who owns a home computer, whether it is running Microsoft Windows, Mac O/S or Linux. It doesn’t matter what kind of telescope you own either - a small refractor is just as useful as a big "go-to" SCT for most of the projects in this book.
After spending almost a year in Nepal and India, Neale presents the true story of tragedy and survival on one of the world's most dangerous mountains and illuminates the gripping history of the Sherpa. 16-page photo insert.
How did humans, a species that evolved to be cooperative and egalitarian, develop societies of aggressively enforced inequality? Why did our ancestors create a world of patriarchal power, war and abuse? Did it have to be this way? Powerful elites have always called hierarchy and violence unavoidable facts of human nature. The 'science' of evolution, they say, caused--and causes--men to fight, and people to have different, unequal roles, starting with men and women. But that is bad science. In this fascinating, fun and important book, two anthropologists tell the real story of humanity, from early behaviours to contemporary cultures. From bonobo sex and prehistoric childcare to human sacrifice, Joan of Arc, Darwinism and Abu Ghraib, they reveal humankind's evolutionary predisposition to both equality and inequality. Very old ideas of difference, invented by the earliest class societies, have hidden this truth, causing much female, queer and minority suffering. But there is hope. 'Why Men?' is not a book about what men and women are or do. It's about what privileges humans claim, how they rationalise them, and how we unpick those ideas about our roots. It will change how you see the nature of injustice, violence and even yourself.
Thank you for visiting our website. Would you like to provide feedback on how we could improve your experience?
This site does not use any third party cookies with one exception — it uses cookies from Google to deliver its services and to analyze traffic.Learn More.