Life s Ratchet Book
Score: 4
From 1 Ratings

Life s Ratchet

  • Author : Peter M Hoffmann
  • Publisher : Basic Books
  • File Size : 5,9 Mb
  • Release Date : 2012-10-30
  • Genre: Science
  • Pages : 288
  • ISBN 10 : 9780465033362


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Life is an enduring mystery. Yet, science tells us that living beings are merely sophisticated structures of lifeless molecules. If this view is correct, where do the seemingly purposeful motions of cells and organisms originate? In Life's Ratchet, physicist Peter M. Hoffmann locates the answer to this age-old question at the nanoscale. Below the calm, ordered exterior of a living organism lies microscopic chaos, or what Hoffmann calls the molecular storm -- specialized molecules immersed in a whirlwind of colliding water molecules. Our cells are filled with molecular machines, which, like tiny ratchets, transform random motion into ordered activity, and create the "purpose" that is the hallmark of life. Tiny electrical motors turn electrical voltage into motion, nanoscale factories custom-build other molecular machines, and mechanical machines twist, untwist, separate and package strands of DNA. The cell is like a city -- an unfathomable, complex collection of molecular workers working together to create something greater than themselves. Life, Hoffman argues, emerges from the random motions of atoms filtered through these sophisticated structures of our evolved machinery. We are agglomerations of interacting nanoscale machines more amazing than anything in science fiction. Rather than relying on some mysterious "life force" to drive them -- as people believed for centuries -- life's ratchets harness instead the second law of thermodynamics and the disorder of the molecular storm. Grounded in Hoffmann's own cutting-edge research, Life's Ratchet reveals the incredible findings of modern nanotechnology to tell the story of how the noisy world of atoms gives rise to life itself.

The Big Ratchet Book
Score: 5
From 1 Ratings

The Big Ratchet

  • Author : Ruth DeFries
  • Publisher : Basic Books
  • File Size : 16,6 Mb
  • Release Date : 2014-09-09
  • Genre: Science
  • Pages : 288
  • ISBN 10 : 9780465080939


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How an ordinary mammal manipulated nature to become technologically sophisticated city-dwellers -- and why our history points to an optimistic future in the face of environmental crisis Our species long lived on the edge of starvation. Now we produce enough food for all 7 billion of us to eat nearly 3,000 calories every day. This is such an astonishing thing in the history of life as to verge on the miraculous. The Big Ratchet is the story of how it happened, of the ratchets -- the technologies and innovations, big and small -- that propelled our species from hunters and gatherers on the savannahs of Africa to shoppers in the aisles of the supermarket. The Big Ratchet itself came in the twentieth century, when a range of technologies -- from fossil fuels to scientific plant breeding to nitrogen fertilizers -- combined to nearly quadruple our population in a century, and to grow our food supply even faster. To some, these technologies are a sign of our greatness; to others, of our hubris. MacArthur fellow and Columbia University professor Ruth DeFries argues that the debate is the wrong one to have. Limits do exist, but every limit that has confronted us, we have surpassed. That cycle of crisis and growth is the story of our history; indeed, it is the essence of The Big Ratchet. Understanding it will reveal not just how we reached this point in our history, but how we might survive it.

This Journal Belongs to Ratchet Book
Score: 4.5
From 2 Ratings

This Journal Belongs to Ratchet

  • Author : Nancy J. Cavanaugh
  • Publisher : Sourcebooks, Inc.
  • File Size : 11,5 Mb
  • Release Date : 2013-04-02
  • Genre: Juvenile Fiction
  • Pages : 322
  • ISBN 10 : 9781402281082


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Move over Diary of a Wimpy Kid—there's a new journal in town and it belongs to Ratchet. "A book that is full of surprises...Triumphant enough to make readers cheer; touching enough to make them cry." —Kirkus, STARRED Review If only getting a new life were as easy as getting a new notebook. But it's not. It's the first day of school for all the kids in the neighborhood. But not for me. I'm homeschooled. That means nothing new. No new book bag, no new clothes, and no new friends. The best I've got is this notebook. I'm supposed to use it for my writing assignments, but my dad never checks. Here's what I'm really going to use it for: Ratchet's Top Secret Plan Turn my old, recycled, freakish, friendless life into something shiny and new. This Florida State Book Award gold medal winner is a heartfelt story about an unconventional girl's quest to make a friend, save a park, and find her own definition of normal.

The Canning Season Book
Score: 3
From 13 Ratings

The Canning Season

  • Author : Polly Horvath
  • Publisher : Farrar, Straus and Giroux (BYR)
  • File Size : 18,9 Mb
  • Release Date : 2003-05-07
  • Genre: Young Adult Fiction
  • Pages : 208
  • ISBN 10 : 9781429965095


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Love under trying circumstances One night out of the blue, Ratchet Clark's ill-natured mother tells her that Ratchet will be leaving their Pensacola apartment momentarily to take the train up north. There she will spend the summer with her aged relatives Penpen and Tilly, inseparable twins who couldn't look more different from each other. Staying at their secluded house, Ratchet is treated to a passel of strange family history and local lore, along with heaps of generosity and care that she has never experienced before. Also, Penpen has recently espoused a new philosophy – whatever shows up on your doorstep you have to let in. Through thick wilderness, down forgotten, bear-ridden roads, come a variety of characters, drawn to Penpen and Tilly's open door. It is with vast reservations that the cautious Tilly allows these unwelcome guests in. But it turns out that unwelcome guests may bring the greatest gifts. By turns dark and humorous, Polly Horvath offers adolescent readers enough quirky characters and outrageous situations to leave them reeling! The Canning Season is the winner of the 2003 National Book Award for Young People's Literature.

The Black Book of Secrets Book
Score: 3.5
From 24 Ratings

The Black Book of Secrets

  • Author : F. E. Higgins
  • Publisher : Pan Macmillan
  • File Size : 8,9 Mb
  • Release Date : 2008-09-04
  • Genre: Juvenile Fiction
  • Pages : 336
  • ISBN 10 : 9780330471534


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When Ludlow Fitch's parents cruelly betray him, he steals away on the back of a carriage and leaves behind the stinking City. He arrives in the dead of night at a remote village, where he crosses paths with the tall and limping figure of Joe Zabbidou - a pawnbroker with a difference. For Joe trades secrets, not goods, for cash. Ludlow is employed to record the villagers' fiendish confessions in The Black Book of Secrets. Bodysnatching; thievery; murder. The people of Pagus Parvus have much to hide. But is Ludlow Fitch ready to release his own skeletons? And will he ever learn to trust his mysterious master?

My Ratchet Secret Book

My Ratchet Secret

  • Author : Midnite Love
  • Publisher : Love Den Media Publishing
  • File Size : 11,7 Mb
  • Release Date : 2017-01-23
  • Genre: Fiction
  • Pages : 52
  • ISBN 10 : 978186723xxxx


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Same book new look! I have a question for you ladies. What would you do to marry the man of your dreams? Would you be willing to risk everything for love? I did, the day I met my fiancé I knew he was my soul mate. And I was willing to do whatever it took to get him no matter what the cost. My name is Pebbles and this is my story. ATTENTION: This is a short story

Ratchetdemic Book


  • Author : Christopher Emdin
  • Publisher : Beacon Press
  • File Size : 15,7 Mb
  • Release Date : 2021-08-10
  • Genre: Education
  • Pages : 264
  • ISBN 10 : 9780807089514


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A revolutionary new educational model that encourages educators to provide spaces for students to display their academic brilliance without sacrificing their identities Building on the ideas introduced in his New York Times best-selling book, For White Folks Who Teach in the Hood, Christopher Emdin introduces an alternative educational model that will help students (and teachers) celebrate ratchet identity in the classroom. Ratchetdemic advocates for a new kind of student identity—one that bridges the seemingly disparate worlds of the ivory tower and the urban classroom. Because modern schooling often centers whiteness, Emdin argues, it dismisses ratchet identity (the embodying of “negative” characteristics associated with lowbrow culture, often thought to be possessed by people of a particular ethnic, racial, or socioeconomic status) as anti-intellectual and punishes young people for straying from these alleged “academic norms,” leaving young people in classrooms frustrated and uninspired. These deviations, Emdin explains, include so-called “disruptive behavior” and a celebration of hip-hop music and culture. Emdin argues that being “ratchetdemic,” or both ratchet and academic (like having rap battles about science, for example), can empower students to embrace themselves, their backgrounds, and their education as parts of a whole, not disparate identities. This means celebrating protest, disrupting the status quo, and reclaiming the genius of youth in the classroom.

Into the Cool Book
Score: 5
From 1 Ratings

Into the Cool

  • Author : Eric D. Schneider
  • Publisher : University of Chicago Press
  • File Size : 7,9 Mb
  • Release Date : 2005-06
  • Genre: Science
  • Pages : 382
  • ISBN 10 : 9780226739366


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The authors look to the laws of thermodynamics for answers to the questions of evolution, ecology, economics, and even life's origin.

Every Life Is on Fire Book
Score: 4
From 1 Ratings

Every Life Is on Fire

  • Author : Jeremy England
  • Publisher : Basic Books
  • File Size : 12,7 Mb
  • Release Date : 2020-09-15
  • Genre: Science
  • Pages : 185
  • ISBN 10 : 9781541699007


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A preeminent physicist unveils a field-defining theory of the origins and purpose of life. Why are we alive? Most things in the universe aren't. And everything that is alive traces back to things that, puzzlingly, weren't. For centuries, the scientific question of life's origins has confounded us. But in Every Life Is on Fire, physicist Jeremy England argues that the answer has been under our noses the whole time, deep within the laws of thermodynamics. England explains how, counterintuitively, the very same forces that tend to tear things apart assembled the first living systems. But how life began isn't just a scientific question. We ask it because we want to know what it really means to be alive. So England, an ordained rabbi, uses his theory to examine how, if at all, science helps us find purpose in a vast and mysterious universe. In the tradition of Viktor Frankl's Man's Search for Meaning, Every Life Is on Fire is a profound testament to how something can come from nothing.

The Dumb Bitch Book

The Dumb Bitch

  • Author : Rashima Wilson
  • Publisher : Createspace Independent Publishing Platform
  • File Size : 20,8 Mb
  • Release Date : 2015-11-17
  • Genre: Uncategoriezed
  • Pages : 106
  • ISBN 10 : 1519340338


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Raised dirt poor in one of the worst parts of town, La-La is determined not end up like the generations of her family before her: a mother when she's barely in her teens, getting caught up in the drug game, or just plain stuck living hand-to-mouth in the projects for the rest of her life. She's got big dreams, not to mention the rare combination of a sharp mind, runway model looks, and a killer bod, all of which she plan on using to get the hell out of the ghetto. But even the best laid plans have a habit of going to pieces - especially in the hood. La-La finds that out firsthand when her ambitions cause her to cross paths with Dre, a much more worldly (and older) man than the scrubs she's used to dealing with. Showered with gifts and attention, La-La consciously chooses to overlook the strings that come attached to Dre's affection - namely, that he is a man with dangerous ties and associates. Forced outside her comfort zone, La-La finds herself getting caught up in Dre's world. Even worse, her normally good judgment is being impaired by both her desire for the finer things in life and her growing physical needs as she struggles to answer one question: is what she and Dre have real and worth risking everything for, or is he simply using her the way she had planned on using him?

Mexican Gothic Book
Score: 3.5
From 71 Ratings

Mexican Gothic

  • Author : Silvia Moreno-Garcia
  • Publisher : Del Rey
  • File Size : 14,7 Mb
  • Release Date : 2020-06-30
  • Genre: Fiction
  • Pages : 320
  • ISBN 10 : 9780525620792


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NEW YORK TIMES BESTSELLER • “It’s Lovecraft meets the Brontës in Latin America, and after a slow-burn start Mexican Gothic gets seriously weird.”—The Guardian IN DEVELOPMENT AS A HULU ORIGINAL LIMITED SERIES PRODUCED BY KELLY RIPA AND MARK CONSUELOS • WINNER OF THE LOCUS AWARD • NOMINATED FOR THE BRAM STOKER AWARD ONE OF THE BEST BOOKS OF THE YEAR: The New Yorker, Vanity Fair, NPR, The Washington Post, Tordotcom, Marie Claire, Vox, Mashable, Men’s Health, Library Journal, Book Riot, LibraryReads An isolated mansion. A chillingly charismatic aristocrat. And a brave socialite drawn to expose their treacherous secrets. . . . From the author of Gods of Jade and Shadow comes “a terrifying twist on classic gothic horror” (Kirkus Reviews) set in glamorous 1950s Mexico. After receiving a frantic letter from her newly-wed cousin begging for someone to save her from a mysterious doom, Noemí Taboada heads to High Place, a distant house in the Mexican countryside. She’s not sure what she will find—her cousin’s husband, a handsome Englishman, is a stranger, and Noemí knows little about the region. Noemí is also an unlikely rescuer: She’s a glamorous debutante, and her chic gowns and perfect red lipstick are more suited for cocktail parties than amateur sleuthing. But she’s also tough and smart, with an indomitable will, and she is not afraid: Not of her cousin’s new husband, who is both menacing and alluring; not of his father, the ancient patriarch who seems to be fascinated by Noemí; and not even of the house itself, which begins to invade Noemi’s dreams with visions of blood and doom. Her only ally in this inhospitable abode is the family’s youngest son. Shy and gentle, he seems to want to help Noemí, but might also be hiding dark knowledge of his family’s past. For there are many secrets behind the walls of High Place. The family’s once colossal wealth and faded mining empire kept them from prying eyes, but as Noemí digs deeper

The Search for Life s Origins Book

The Search for Life s Origins

  • Author : National Research Council
  • Publisher : National Academies Press
  • File Size : 10,5 Mb
  • Release Date : 1990-02-01
  • Genre: Science
  • Pages : 161
  • ISBN 10 : 9780309042468


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The field of planetary biology and chemical evolution draws together experts in astronomy, paleobiology, biochemistry, and space science who work together to understand the evolution of living systems. This field has made exciting discoveries that shed light on how organic compounds came together to form self-replicating molecules-the origin of life. This volume updates that progress and offers recommendations on research programs-including an ambitious effort centered on Mars-to advance the field over the next 10 to 15 years. The book presents a wide range of data and research results on these and other issues: The biogenic elements and their interaction in the interstellar clouds and in solar nebulae. Early planetary environments and the conditions that lead to the origin of life. The evolution of cellular and multicellular life. The search for life outside the solar system. This volume will become required reading for anyone involved in the search for life's beginnings-including exobiologists, geoscientists, planetary scientists, and U.S. space and science policymakers.

Random Walks in Biology Book
Score: 5
From 1 Ratings

Random Walks in Biology

  • Author : Howard C. Berg
  • Publisher : Princeton University Press
  • File Size : 19,8 Mb
  • Release Date : 2018-11-20
  • Genre: Science
  • Pages : 168
  • ISBN 10 : 9781400820023


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This book is a lucid, straightforward introduction to the concepts and techniques of statistical physics that students of biology, biochemistry, and biophysics must know. It provides a sound basis for understanding random motions of molecules, subcellular particles, or cells, or of processes that depend on such motion or are markedly affected by it. Readers do not need to understand thermodynamics in order to acquire a knowledge of the physics involved in diffusion, sedimentation, electrophoresis, chromatography, and cell motility--subjects that become lively and immediate when the author discusses them in terms of random walks of individual particles.

The Ratchet of Science Book

The Ratchet of Science

  • Author : Roy Yorke Calne
  • Publisher : Nova Science Publishers
  • File Size : 5,9 Mb
  • Release Date : 2014
  • Genre: Science
  • Pages : 0
  • ISBN 10 : 163117861X


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Science, like the universe, is expanding and accelerating. This book outlines the many gifts that science has bestowed upon our quality of life ranging from health, travel, and communication, but it also raises concerns about the sometimes awful consequences of science. These may be accidental and unanticipated, or deliberate, as with the development of new weapons that carry dreadful potential. After the Second World War, a chasm separated the regimes of the East and West, and the possibility that the world was heading towards a catastrophic atomic conflict was a serious worry. Science has a responsibility for its consequences, even if these are not anticipated. In view of the history of science and our current relationship with scientific advances, it would be prudent to attempt a continuing peaceful dialogue to avoid future confrontation. For the writing of this book, the author made many in-depth studies of correspondence between scientists and philosophers, including, most notably, Albert Einstein and Bertrand Russell, at Churchill College Archives in Cambridge.

Molecular Machines Book

Molecular Machines

  • Author : Giovanni Zocchi
  • Publisher : Princeton University Press
  • File Size : 7,7 Mb
  • Release Date : 2018-07-10
  • Genre: Science
  • Pages : 188
  • ISBN 10 : 9780691173863


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Molecular Machines presents a dynamic new approach to the physics of enzymes and DNA from the perspective of materials science. Unified around the concept of molecular deformability—how proteins and DNA stretch, fold, and change shape—this book describes the complex molecules of life from the innovative perspective of materials properties and dynamics, in contrast to structural or purely chemical approaches. It covers a wealth of topics, including nonlinear deformability of enzymes and DNA; the chemo-dynamic cycle of enzymes; supra-molecular constructions with internal stress; nano-rheology and viscoelasticity; and chemical kinetics, Brownian motion, and barrier crossing. Essential reading for researchers in materials science, engineering, and nanotechnology, the book also describes the landmark experiments that have established the materials properties and energy landscape of large biological molecules. Molecular Machines is also ideal for the classroom. It gives graduate students a working knowledge of model building in statistical mechanics, making it an essential resource for tomorrow's experimentalists in this cutting-edge field. In addition, mathematical methods are introduced in the bio-molecular context—for example, DNA conformational transitions are used to illustrate the transfer matrix formalism. The result is a generalized approach to mathematical problem solving that enables students to apply their findings more broadly. Molecular Machines represents the next leap forward in nanoscience, as researchers strive to harness proteins, enzymes, and DNA as veritable machines in medicine, technology, and beyond.