D'autres livres qui pourraient vous intéresser

• 

  Dönitz and the Wolf Packs

  Bernard Edwards

  • 0
  • 0
  • 0

  On 17 September 1942 Admiral Karl Donitz, C-in-C U-boats, issued the following directive:To all Commanders - 'All attempts to rescue members of ships sunk, therefore also fishing out swimmers and putting them into lifeboats, righting capsized lifeboats, handing out provisions and water, have to cease. Rescue contradicts the most fundamental demands of war for the annihilation of enemy ships and crews'.This order ended what had hitherto been a war in which the opposing factions treated each other with a certain respect, seaman to seaman, showing mercy where mercy was due. It also marked the point at which the Battle of the Atlantic became a dirty war of attrition, with the U-boats hunting in packs snarling and snapping at the heels of the hard-pressed convoys. Ships began to go down like corn before the reaper, men were dying in their hundreds in the cold grey waters of the great ocean. This was a battle without quarter. A battle the U-boats would have won had it not been for the grit and determination of the convoy escorts and the unflagging resilience of the men who manned the vulnerable merchant ships.This book faithfully records the progress of the Battle of the Atlantic, which began within hours of the declaration of war on 3 September 1939 and continued without let-up until the last torpedo was fired on the night of 7 May 1945, just one hour before Germany surrendered. The story is told from both sides of the periscope.

  Voir livre

• 

  The Secret Life of Lobsters -...

  Trevor Corson

  • 0
  • 0
  • 0

  “Lobster is served three ways in this fascinating book: by fisherman, scientist and the crustaceans themselves. . . . Corson, who worked aboard commercial lobster boats for two years, weaves together these three worlds. The human worlds are surely interesting; but they can’t top the lobster life on the ocean floor.”  — Washington PostIn this intimate portrait of an island lobstering community and an eccentric band of renegade biologists, journalist Trevor Corson escorts the reader onto the slippery decks of fishing boats, through danger-filled scuba dives, and deep into the churning currents of the Gulf of Maine to learn about the secret undersea lives of lobsters.This P.S. edition features an extra 16 pages of insights into the book, including author interviews, recommended reading, and more.

  Voir livre

• 

  The Endangered Species Act -...

  Brian Czech, Paul R Krausman

  • 0
  • 0
  • 0

  The new model of policy design theory frames the discussion regarding the frequently analyzed Endangered Species Act in this historical perspective. 
   
  Since the 1970s, the Endangered Species Act (ESA), by virtue of its regulatory impact, has been a frequent subject of policy analysis. In this comprehensive history and critique of the ESA, Brian Czech and Paul R. Krausman incorporate the new model of policy design theory to frame a larger discussion about conservation biology and American democracy.  
   
  Czech and Krausman provide a historical background of endangered species policy that integrates natural history, socioeconomic trends, political movements, and professional developments. Outlining the controversies surrounding the ESA, they find a connection between challenges to species conservation and challenges to democracy. After an assessment of ESA analyses that have been performed from traditional perspectives, they engage policy design theory to review the structural logic of the ESA, analyzing each clause of the legislation for its application of the fundamental elements of democracy. To address the technical legitimacy of ESA, they propose two new genetic considerations-functional genome size and molecular clock speed-to supplement phylogenetic distinctiveness as criteria with which to prioritize species for conservation. Next, they systematically describe the socioeconomic context of ESA by assessing and classifying the causes of species endangerment.  
   
  A hybrid of policy analysis and ecological assessment, The Endangered Species Act: History, Conservation Biology, and Public Policy will appeal to scholars and students in the fields of natural resource policy and law, conservation biology, political science, wildlife ecology, and environmental history, and to professionals at agencies involved in wildlife conservation. 
   
  “Interesting for anyone concerned about the preservation of species and, more generally, the global environment . . . a good explanation of the statute, a wonderful and often entertaining description of how we view and rank nonhuman species, and a provocative critique of the very policy analytic framework the authors have employed.” —Joseph F. C. DiMento Environment 
   
  “Czech and Krausman are effective and original scholars. The Endangered Species Act: History, Conservation Biology, and Public Policy is both a treatise on policy assessment and an excellent history, assessment, and discussion of the ESA itself. Those interested in natural resources policy and those interested specifically in the ESA will want to read this book.” —Jack Ward Thomas, The University of Montana, Chief Emeritus, U.S. Forest Service

  Voir livre

• 

  The Non-Technical Founder - How...

  Josh MacDonald

  • 0
  • 0
  • 0

  Everyone has an idea that they think is the next big thing. The problem is, it’s probably an app or software idea and most people probably don’t know how to code and their record for managing programmers is little to none. Even if they do know how to code, they’re not quite sure how to get their first one thousand customers. The Non-Technical Founder walks readers through the stages of validating whether their next big thing is good, bringing the idea to life, and getting those first customers.

  Voir livre

• 

  Number Theory - A Very Short...

  Robin Wilson

  • 0
  • 0
  • 0

  Number theory is the branch of mathematics that is primarily concerned with the counting numbers. Of particular importance are the prime numbers, the "building blocks" of our number system. The subject is an old one, dating back over two millennia to the ancient Greeks, and for many years has been studied for its intrinsic beauty and elegance, not least because several of its challenges are so easy to state that everyone can understand them, and yet no one has ever been able to resolve them.But number theory has also recently become of great practical importance—in the area of cryptography, where the security of your credit card, and indeed of the nation's defense, depends on a result concerning prime numbers that dates back to the eighteenth century. Recent years have witnessed other spectacular developments, such as Andrew Wiles's proof of "Fermat's last theorem" (unproved for over 250 years) and some exciting work on prime numbers. In this Very Short Introduction Robin Wilson introduces the main areas of classical number theory, both ancient and modern. Drawing on the work of many of the greatest mathematicians of the past, such as Euclid, Fermat, Euler, and Gauss, he situates some of the most interesting and creative problems in the area in their historical context.

  Voir livre

• 

  Sneaky Math - A Graphic Primer...

  Cy Tymony

  • 0
  • 0
  • 0

  “By capitalizing on these real-world applications, Tymony helps conquer much of the fear and dread associated with traditional math lessons.” (Booklist)   Cy Tymony, author of the best-selling Sneaky Uses series, brings his unique, fun hands-on learning approach to all things math.   Many people fear math and numbers, even Barbie, who famously said “Math class is tough” in her controversial 1992 talking doll version. But in Sneaky Math, Cy Tymony takes tough and turns it into triumph. He shows us how math is all around us through intriguing and easy projects, including twenty pass-along tools to complement math education programs.    The book is divided into seven sections:    1. Fundamentals of Numbers and Arithmetic  2. Algebra Primer  3. Geometry Primer  4. Trigonometry Primer  5. Calculus Primer  6. Sneaky Math Challenges, Tricks, and Formulas  7. Resources

  Voir livre