Tag Archives: Hemisphere.

Turn Left at Orion: Hundreds of Night Sky Objects to See in a Home Telescope – and How to Find Them, 4th edition

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Turn Left at Orion: Hundreds of Night Sky Objects to See in a Home Telescope – and How to Find Them, 4th edition By Guy Consolmagno, Dan M. Davis
2011 | 256 Pages | ISBN: 0521153972 | PDF | 82 MB

Turn Left at Orion: Hundreds of Night Sky Objects to See in a Home Telescope – and How to Find Them, 4th edition
With over 100,000 copies sold since first publication, this is one of the most popular astronomy books of all time. It is a unique guidebook to the night sky, providing all the information you need to observe a whole host of celestial objects. With a new spiral binding, this edition is even easier to use outdoors at the telescope and is the ideal beginner's book. Keeping its distinct one-object-per-spread format, this edition is also designed for Dobsonian telescopes, as well as for smaller reflectors and refractors, and covers Southern hemisphere objects in more detail. Large-format eyepiece views, positioned side-by-side, show objects exactly as they are seen through a telescope, and with improved directions, updated tables of astronomical information and an expanded night-by-night Moon section, it has never been easier to explore the night sky on your own. Many additional resources are available on the accompanying website, www.cambridge.org/turnleft.
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Turn Left at Orion: Hundreds of Night Sky Objects to See in a Home Telescope – and How to Find Them, 4th edition

FREEDownload : Turn Left at Orion: Hundreds of Night Sky Objects to See in a Home Telescope – and How to Find Them, 4th edition

Turn Left at Orion: Hundreds of Night Sky Objects to See in a Home Telescope – and How to Find Them, 4th edition By Guy Consolmagno, Dan M. Davis
2011 | 256 Pages | ISBN: 0521153972 | PDF | 82 MB

Turn Left at Orion: Hundreds of Night Sky Objects to See in a Home Telescope – and How to Find Them, 4th edition
With over 100,000 copies sold since first publication, this is one of the most popular astronomy books of all time. It is a unique guidebook to the night sky, providing all the information you need to observe a whole host of celestial objects. With a new spiral binding, this edition is even easier to use outdoors at the telescope and is the ideal beginner's book. Keeping its distinct one-object-per-spread format, this edition is also designed for Dobsonian telescopes, as well as for smaller reflectors and refractors, and covers Southern hemisphere objects in more detail. Large-format eyepiece views, positioned side-by-side, show objects exactly as they are seen through a telescope, and with improved directions, updated tables of astronomical information and an expanded night-by-night Moon section, it has never been easier to explore the night sky on your own. Many additional resources are available on the accompanying website, www.cambridge.org/turnleft.
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Ecology of Australian Freshwater Fishes

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Ecology of Australian Freshwater Fishes by Paul Humphries, Keith Walker
2013 | ISBN: 0643097430 | English | 440 pages | PDF | 19 MB

Ecology of Australian Freshwater Fishes
This edited volume reviews our past and present understanding of the ecology of Australian freshwater fishes. It compares patterns and processes in Australia with those on other continents, discusses the local relevance of ecological models from the northern hemisphere and considers how best to manage our species and their habitats in the face of current and future threats. In view of these challenges, the need for redress is urgent.

The chapters are written by some of our foremost researchers and managers, developing themes that underpin our knowledge of the ecology, conservation and management of fish and fish habitats. For each theme, the authors formulate a synthesis of what is known, consider the need for new perspectives and identify gaps and opportunities for research, monitoring and management. The themes have an Australian context but draw upon ideas and principles developed by fish biologists in other parts of the world.

The science of freshwater fish ecology in Australia has grown rapidly from its roots in natural history and taxonomy. This book offers an introduction for students, researchers and managers, one that the authors hope will carry Australian fish biology and resource management to new levels of understanding.

Winner of the 2013 Whitley Medal

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Technology as Human Social Tradition: Cultural Transmission among Hunter-Gatherers

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Technology as Human Social Tradition: Cultural Transmission among Hunter-Gatherers (Origins of Human Behavior and Culture) by Peter Jordan
2014 | ISBN: 0520276922, 0520276930 | English | 424 pages | PDF + EPUB | 15 MB + 23 MB

Technology as Human Social Tradition: Cultural Transmission among Hunter-Gatherers
Technology as Human Social Tradition outlines a novel approach to studying variability and cumulative change in human technology—prominent research themes in both archaeology and anthropology. Peter Jordan argues that human material culture is best understood as an expression of social tradition. In this approach, each artifact stands as an output of a distinctive operational sequence with specific choices made at each stage in its production. Jordan also explores different material culture traditions that are propagated through social learning, factors that promote coherent lineages of tradition to form, and the extent to which these cultural lineages exhibit congruence with one another and with language history.

Drawing on the application of cultural transmission theory to empirical research, Jordan develops a descent-with-modification perspective on the technology of Northern Hemisphere hunter-gatherers. Case studies from indigenous societies in Northwest Siberia, the Pacific Northwest Coast, and Northern California provide cross-cultural insights related to the evolution of material culture traditions at different social and spatial scales. This book promises new ways of exploring some of the primary factors that generate human cultural diversity in the deep past and through to the present.
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Technology as Human Social Tradition: Cultural Transmission among Hunter-Gatherers

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Technology as Human Social Tradition: Cultural Transmission among Hunter-Gatherers (Origins of Human Behavior and Culture) by Peter Jordan
2014 | ISBN: 0520276922, 0520276930 | English | 424 pages | PDF + EPUB | 15 MB + 23 MB

Technology as Human Social Tradition: Cultural Transmission among Hunter-Gatherers
Technology as Human Social Tradition outlines a novel approach to studying variability and cumulative change in human technology—prominent research themes in both archaeology and anthropology. Peter Jordan argues that human material culture is best understood as an expression of social tradition. In this approach, each artifact stands as an output of a distinctive operational sequence with specific choices made at each stage in its production. Jordan also explores different material culture traditions that are propagated through social learning, factors that promote coherent lineages of tradition to form, and the extent to which these cultural lineages exhibit congruence with one another and with language history.

Drawing on the application of cultural transmission theory to empirical research, Jordan develops a descent-with-modification perspective on the technology of Northern Hemisphere hunter-gatherers. Case studies from indigenous societies in Northwest Siberia, the Pacific Northwest Coast, and Northern California provide cross-cultural insights related to the evolution of material culture traditions at different social and spatial scales. This book promises new ways of exploring some of the primary factors that generate human cultural diversity in the deep past and through to the present.
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How To Grow Your Own Bonsai Trees From Seed

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How To Grow Your Own Bonsai Trees From Seed by Bruce Bullock
English | Mar 26, 2011 | ASIN: B004U363MC | 30 Pages | EPUB/MOBI/AZW3/PDF (Converted) | 2 MB
Growing bonsai trees from seed is surprisingly easy and can be an incredibly rewarding experience. Germination on many types of tree seed is good with a large percentage achieving germination if fresh seed of the correct types of seed are chosen.

How To Grow Your Own Bonsai Trees From Seed
Contrary to what many people may think growing trees from seed can be fast and growth is quite rapid on many varieties. Most of all this can be done on a small budget and in no time at all you will be able to have plenty of small trees of different varieties to grow and train into bonsai.

This eBook will teach you the basic principles of seed sowing, from how to choose the best varieties, whether to collect or buy the seed, and how to sow the seed with advice on caring for the seedlings. It will also give a description of how to treat all the most popular tree seed types for bonsai.

As a hobby, keeping bonsai is an extremely rewarding experience and when one grows the bonsai trees from seed it is even more so as you can develop a personal relationship with each tree having seen its development from germination to tree.

One of the main advantages of growing trees from seed is that it costs so little, and if the seeds are personally collected then there is no outlay at all which is even more satisfying.

Whether you live in a tropical country in the southern hemisphere or in a cool temperate region of the northern hemisphere, the treatment of seeds for sowing may be different.

What is common though is that you will be amazed and delighted at your collection of germinating tree seedlings which will continue to fascinate you as these quickly develop into larger young trees. This to me is what nature is all about.

There are many different types and classifications of tree seed. There are those which require a period of dormancy while others are best sown immediately. Some seeds may take several years to germinate while others will start sprouting within a week or two of being sown.

Chapters in the book are as follows:-

1) Introduction
2) Seed Types and Characteristics
3) Seed Treatments
4) What You Will Need
5) Collecting or Buying Your Seed
6) Storing Your Seed
7) Sowing Your Seed
8) Pricking Out and Potting On
9) Initial Pruning
10) Some of the Best Tree Varieties
11) Useful Links

This book has an active table of contents and a section with many links to excellent online suppliers of tree and other seeds, researched over many years by the author.
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B-29 The Superfortress

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B-29 The Superfortress by Mantelli – Brown – Kittel – Graf
English | December 12, 2014 | ASIN: B00QZ3PHVI | 77 Pages | EPUB/MOBI/AZW3/PDF (Converted) | 4.55 MB
The Boeing B 29 Superfortress will be remembered as the device to have made use of atomic weapons in war action; were, in fact, this type of aircraft that dropped the atomic bombs on Hiroshima and Nagasaki to force Japan to surrender in August 1945.

B-29 The Superfortress
Apart from that, however, the Boeing B 29 was an excellent plane, with cutting-edge features, including towers with weapons maneuverable automatically remote and pressurized compartments for the crew.
The American interest in a bomber capable of carrying a significant offensive load over long distances and at high speed back to Boeing XB 15, 1933. Although, in the second half of that decade, the interest for such a weapon dims, the Boeing continued to develop the design of similar projects, culminating in the model 341, which is believed capable of carrying a load of 2,240 pounds (just over 1,000 kg) of bombs with a flight range of 7,000 miles (11,265 km) at a speed of over 400 miles / h (644 km / h).
However, with the outbreak of World War II in Europe and the possibility of a future American involvement in it, the US Army Aviation Corps (USAAC) monster again interest for any weapon that would put the United States in the possibility of bombing the enemy also at very great distances.
So in February 1940, he was made the request of the "Hemisphere Defense Weapon" (weapon for the defense of the hemisphere), and that of a bomber capable of carrying 2,000 pounds (907 km) of bombs over a distance of 5333 miles (8,600 km) at a speed of 400 miles / h (644 km / h).
The bomber was supposed to also have tanks autostagnanti, a good armored protection, a heavy defensive armament and a chance to carry 16,000 pounds (7,250 kg) of offensive load.

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Hold the Enlightenment by Tim Cahill

Hold the Enlightenment by Tim Cahill
Vintage | 2003 | ISBN: 0375713298 | 320 pages | EPUB | 6 MB
In his latest collection of death-defying exploits and far-flung travels, Outside Magazine editor Tim Cahill visits the side of an active volcano in Ecuador, the Saharan salt mines and the largest toxic waste dump in the Western Hemisphere. He also ventures to find a Caspian tiger in Turkey and giant centipedes in the Congo. Cahill is one of the last great intrepid journalists, and his thirty wildly entertaining essays display sparkling wit and unstinting curiosity. When not on the move, he debunks hoary notions of the kindness of dolphins and ruminates on religion, death and the perplexing phenomenon of yoga. Charming, incisive and absolutely fearless, Cahill is the perfect travel companion.

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