Altri libri che potrebbero interessarti

• 

  Dirt to Soil - One Family’s...

  Gabe Brown

  • 0
  • 0
  • 0

  Gabe Brown didn’t set out to change the world when he first started working alongside his father-in-law on the family farm in North Dakota. But as a series of weather-related crop disasters put Brown and his wife, Shelly, in desperate financial straits, they started making bold changes to their farm. Brown—in an effort to simply survive—began experimenting with new practices he’d learned about from reading and talking with innovative researchers and ranchers. As he and his family struggled to keep the farm viable, they found themselves on an amazing journey into a new type of farming: regenerative agriculture. 
  Brown dropped the use of most of the herbicides, insecticides, and synthetic fertilizers that are a standard part of conventional agriculture. He switched to no-till planting, started planting diverse cover crops mixes, and changed his grazing practices. In so doing Brown transformed a degraded farm ecosystem into one full of life—starting with the soil and working his way up, one plant and one animal at a time. 
  In Dirt to Soil Gabe Brown tells the story of that amazing journey and offers a wealth of innovative solutions to our most pressing and complex contemporary agricultural challenge—restoring the soil. The Brown’s Ranch model, developed over twenty years of experimentation and refinement, focuses on regenerating resources by continuously enhancing the living biology in the soil. Using regenerative agricultural principles, Brown’s Ranch has grown several inches of new topsoil in only twenty years! The 5,000-acre ranch profitably produces a wide variety of cash crops and cover crops as well as grass-finished beef and lamb, pastured laying hens, broilers, and pastured pork, all marketed directly to consumers. 
  The key is how we think, Brown says. In the industrial agricultural model, all thoughts are focused on killing things. But that mindset was also killing diversity, soil, and profit, Brown realized. Now he channels his creative thinking toward how he can get more life on the land—more plants, animals, and beneficial insects. “The greatest roadblock to solving a problem,” Brown says, “is the human mind.”

  Mostra libro

• 

  This Moment on Earth - Today's...

  John Kerry, Teresa Heinz Kerry

  • 0
  • 0
  • 0

  The environment, and the movement that grew up to protect it, is under attack-concerted and purposeful. Yet the need for solutions to pressing environmental problems grows more urgent each day. Teresa Heinz Kerry and Senator John Kerry traveled across the country in a national campaign to see firsthand how these issues unite people across party and ideological lines. From the San Juan Basin to the Gulf of Mexico to the South Bronx, from mothers on Cape Cod to Colorado ranchers, they found a vibrant coalition of people and communities deploying ingenuity, technology, and sheer will power to save the world they know and love. Now, in this passionate and personal book, Senator John Kerry and Teresa Heinz Kerry shine the spotlight on an inspiring cross-section of these new environmental pioneers. This Moment on Earth combines intensive research with keenly observed personal experiences to present a portrait of Americans devoted to the natural diversity and spectacular uniqueness of our country.

  Mostra libro

• 

  Hawker's Secret Cold War...

  Christopher Budgen

  • 0
  • 0
  • 0

  A military aviation expert chronicles the decades of breathtaking innovation that took place at Britain’s secret airbase. 
   
  In 1951, Hawker Aircraft started using Dunsfold Aerodrome to test its new jet projects. The Sea Hawk was followed by the superlative Hunter. Then came a radical new engine design for an aircraft capable of vertical take-off and landing. While nay-sayers claimed it would never work, the Harrier proved them wrong, becoming a vital asset during the Falklands War. 
   
  Then came the Hawk, which—after completion of the RAF requirement—was sold into air arms across the world, including the US Navy. It was an incredible achievement for a UK design. British Aerospace then brought forth its upgraded Harrier, the Harrier GR.5. 
   
  One might expect that this prolific output was the result of some massive industrial plant in the Midlands rather than an isolated aerodrome tucked in the rural hinterland of south Surrey. Shrouded in secrecy for most of its life, Dunsfold has largely escaped the notice of the general public. This volume shines a light on the remarkable work carried out there.

  Mostra libro

• 

  Fatal Invention - How Science...

  Dorothy Roberts

  • 0
  • 0
  • 0

  An incisive, groundbreaking book that examines how a biological concept of race is a myth that promotes inequality in a supposedly “post-racial” era.    Though the Human Genome Project proved that human beings are not naturally divided by race, the emerging fields of personalized medicine, reproductive technologies, genetic genealogy, and DNA databanks are attempting to resuscitate race as a biological category written in our genes.   This groundbreaking book by legal scholar and social critic Dorothy Roberts examines how the myth of race as a biological concept—revived by purportedly cutting-edge science, race-specific drugs, genetic testing, and DNA databases—continues to undermine a just society and promote inequality in a supposedly “post-racial” era. Named one of the ten best black nonfiction books 2011 by AFRO.com, Fatal Invention offers a timely and “provocative analysis” (Nature) of race, science, and politics that “is consistently lucid . . . alarming but not alarmist, controversial but evidential, impassioned but rational” (Publishers Weekly, starred review).   “Everyone concerned about social justice in America should read this powerful book.” —Anthony D. Romero, executive director, American Civil Liberties Union   “A terribly important book on how the ‘fatal invention’ has terrifying effects in the post-genomic, ‘post-racial’ era.” —Eduardo Bonilla-Silva, professor of sociology, Duke University, and author of Racism Without Racists: Color-Blind Racism and the Persistence of Racial Inequality in the United States   “Fatal Invention is a triumph! Race has always been an ill-defined amalgam of medical and cultural bias, thinly overlaid with the trappings of contemporary scientific thought. And no one has peeled back the layers of assumption and deception as lucidly as Dorothy Roberts.” —Harriet A. Washington, author of and Deadly Monopolies: The Shocking Corporate Takeover of Life Itself  

  Mostra libro

• 

  Computational Thinking

  Peter J. Denning, Matti Tedre

  • 0
  • 0
  • 0

  A few decades into the digital era, scientists discovered that thinking in terms of computation made possible an entirely new way of organizing scientific investigation; eventually, every field had a computational branch: computational physics, computational biology, computational sociology. More recently, "computational thinking" has become part of the K-12 curriculum. But what is computational thinking? This volume in the MIT Press Essential Knowledge series offers an accessible overview.The authors explain that computational thinking (CT) is not a set of concepts for programming; it is a way of thinking that is honed through practice: the mental skills for designing computations to do jobs for us, and for explaining and interpreting the world as a complex of information processes. Mathematically trained experts (known as "computers") who performed complex calculations as teams engaged in CT long before electronic computers. The authors identify six dimensions of today's highly developed CT — methods, machines, computing education, software engineering, computational science, and design - and cover each in a chapter. Along the way, they debunk inflated claims for CT and computation while making clear the power of CT in all its complexity and multiplicity.

  Mostra libro

• 

  20 Ways to Success on Youtube -...

  Chris Parker

  • 0
  • 0
  • 0

  Do you want to be more successful on Youtube, or do you want to learn what makes a successful Youtuber? Then take 10 minutes and learn what are the 20 most important things you should consider to be successful on Youtube! The concentrated charge in a short time for your success!

  Mostra libro