Lifes Ratchet

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Life's Ratchet

Author : Peter M Hoffmann
Publisher : Basic Books
Page : 288 pages
File Size : 41,5 Mb
Release : 2012-10-30
Category : Science
ISBN : 9780465033362

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Life's Ratchet by Peter M Hoffmann Pdf

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

Author : Ruth DeFries
Publisher : Basic Books
Page : 289 pages
File Size : 53,6 Mb
Release : 2014-09-09
Category : Science
ISBN : 9780465080939

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The Big Ratchet by Ruth DeFries Pdf

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

Author : Nancy J. Cavanaugh
Publisher : Sourcebooks, Inc.
Page : 322 pages
File Size : 52,7 Mb
Release : 2013-04-02
Category : Juvenile Fiction
ISBN : 9781402281082

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This Journal Belongs to Ratchet by Nancy J. Cavanaugh Pdf

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 Black Book of Secrets

Author : F. E. Higgins
Publisher : Pan Macmillan
Page : 336 pages
File Size : 54,5 Mb
Release : 2008-09-04
Category : Juvenile Fiction
ISBN : 9780330471534

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The Black Book of Secrets by F. E. Higgins Pdf

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

Author : Midnite Love
Publisher : Love Den Media Publishing
Page : 21 pages
File Size : 53,7 Mb
Release : 2017-01-23
Category : Fiction
ISBN : 8210379456XXX

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My Ratchet Secret by Midnite Love Pdf

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

Every Life Is on Fire

Author : Jeremy England
Publisher : Basic Books
Page : 185 pages
File Size : 52,6 Mb
Release : 2020-09-15
Category : Science
ISBN : 9781541699007

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Every Life Is on Fire by Jeremy England Pdf

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.

Brave Genius

Author : Sean B. Carroll
Publisher : Crown
Page : 594 pages
File Size : 48,8 Mb
Release : 2014-09-23
Category : Biography & Autobiography
ISBN : 9780307952349

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Brave Genius by Sean B. Carroll Pdf

The never-before-told account of the intersection of some of the most insightful minds of the 20th century, and a fascinating look at how war, resistance, and friendship can catalyze genius. In the spring of 1940, the aspiring but unknown writer Albert Camus and budding scientist Jacques Monod were quietly pursuing ordinary, separate lives in Paris. After the German invasion and occupation of France, each joined the Resistance to help liberate the country from the Nazis and ascended to prominent, dangerous roles. After the war and through twists of circumstance, they became friends, and through their passionate determination and rare talent they emerged as leading voices of modern literature and biology, each receiving the Nobel Prize in their respective fields. Drawing upon a wealth of previously unpublished and unknown material gathered over several years of research, Brave Genius tells the story of how each man endured the most terrible episode of the twentieth century and then blossomed into extraordinarily creative and engaged individuals. It is a story of the transformation of ordinary lives into exceptional lives by extraordinary events--of courage in the face of overwhelming adversity, the flowering of creative genius, deep friendship, and of profound concern for and insight into the human condition.

The Canning Season

Author : Polly Horvath
Publisher : Farrar, Straus and Giroux (BYR)
Page : 208 pages
File Size : 43,8 Mb
Release : 2003-05-07
Category : Young Adult Fiction
ISBN : 9781429965095

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The Canning Season by Polly Horvath Pdf

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 Ratchet of Science

Author : Roy Yorke Calne
Publisher : Nova Science Publishers
Page : 0 pages
File Size : 41,5 Mb
Release : 2014
Category : Science
ISBN : 163117861X

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The Ratchet of Science by Roy Yorke Calne Pdf

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.

The Cartel 7: Illuminati

Author : Ashley & JaQuavis,JaQuavis Coleman
Publisher : St. Martin's Griffin
Page : 320 pages
File Size : 46,9 Mb
Release : 2017-07-25
Category : Fiction
ISBN : 9781466874916

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The Cartel 7: Illuminati by Ashley & JaQuavis,JaQuavis Coleman Pdf

The saga of love, loyalty, and crime continues in the next explosive book in the Cartel series from the minds of New York Times bestselling authors Ashley & JaQuavis. After the tragic and bloody end to The Cartel’s reign, Carter is forced into isolation to evade the law. With his wife, Miamor, facing federal charges and his dear brother, six feet under, Carter has never been more alone. His empire is at his feet and he has no idea how to rebuild his kingdom. The only thing that is certain is that he has to stay out the way and off the radar of the Feds until he can figure out how to get his lady out of prison. Miamor’s freedom is guaranteed—provided Carter help create and distribute a drug that will take the streets by storm. Rubbing elbows with the most notorious, ruthless leaders of the underworld will get him what he wants. But can he win at their game of murder and money?

Ratchetdemic

Author : Christopher Emdin
Publisher : Beacon Press
Page : 264 pages
File Size : 45,8 Mb
Release : 2021-08-10
Category : Education
ISBN : 9780807089514

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Ratchetdemic by Christopher Emdin Pdf

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.

Conversations on the Dark Secrets of Physics

Author : Wilson Talley,Wendy Teller
Publisher : Springer Science & Business Media
Page : 251 pages
File Size : 43,6 Mb
Release : 2013-06-29
Category : Science
ISBN : 9781489927729

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Conversations on the Dark Secrets of Physics by Wilson Talley,Wendy Teller Pdf

The idea for this book began over four decades ago when Edward Teller began teaching physics appreciation courses at the University of Chicago. Then, as now, Dr. Teller believes that illiteracy in science is an increasingly great danger to American society, not only for our chil dren but also for our growing adult population. On one hand, the future of every individual on this globe is closely related to science and its applications. Fear of the results of science, which has become prevalent in much of the Western World, leads to mistaken decisions in important political affairs. But this book speaks of no fears and of no decisions-only of the facts that can prevent one of them and indirectly guide the others. From the perspective of this book, a second point is even more vii viii PREFACE significant. The first quarter of this century has seen the most won derful and philosophically most important transformation in our thinking. The intellectual and aesthetic values of the points of view of Einstein and Bohr cannot be overestimated. Nor should they be hidden at the bottom of tons of mathematical rubble. Our young people must be exposed to science both because it is useful and because it is fun. Both of these qualities should be taken at a truly high value.

Molecular and Cell Biology For Dummies

Author : Rene Fester Kratz
Publisher : John Wiley & Sons
Page : 384 pages
File Size : 43,5 Mb
Release : 2009-06-02
Category : Science
ISBN : 9780470430668

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Molecular and Cell Biology For Dummies by Rene Fester Kratz Pdf

Your hands-on study guide to the inner world of the cell Need to get a handle on molecular and cell biology? This easy-to-understand guide explains the structure and function of the cell and how recombinant DNA technology is changing the face of science and medicine. You discover how fundamental principles and concepts relate to everyday life. Plus, you get plenty of study tips to improve your grades and score higher on exams! Explore the world of the cell — take a tour inside the structure and function of cells and see how viruses attack and destroy them Understand the stuff of life (molecules) — get up to speed on the structure of atoms, types of bonds, carbohydrates, proteins, DNA, RNA, and lipids Watch as cells function and reproduce — see how cells communicate, obtain matter and energy, and copy themselves for growth, repair, and reproduction Make sense of genetics — learn how parental cells organize their DNA during sexual reproduction and how scientists can predict inheritance patterns Decode a cell's underlying programming — examine how DNA is read by cells, how it determines the traits of organisms, and how it's regulated by the cell Harness the power of DNA — discover how scientists use molecular biology to explore genomes and solve current world problems Open the book and find: Easy-to-follow explanations of key topics The life of a cell — what it needs to survive and reproduce Why molecules are so vital to cells Rules that govern cell behavior Laws of thermodynamics and cellular work The principles of Mendelian genetics Useful Web sites Important events in the development of DNA technology Ten great ways to improve your biology grade

Molecular Machines

Author : Giovanni Zocchi
Publisher : Princeton University Press
Page : 188 pages
File Size : 45,5 Mb
Release : 2018-07-10
Category : Science
ISBN : 9780691173863

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Molecular Machines by Giovanni Zocchi Pdf

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.

The Way of the Cell

Author : Franklin M. Harold
Publisher : Oxford University Press, USA
Page : 320 pages
File Size : 48,6 Mb
Release : 2003
Category : Science
ISBN : 9780195163384

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The Way of the Cell by Franklin M. Harold Pdf

A leading microbiologist provides thought-provoking insights into the question of "What is Life?" as he examines the relationship of living things to the inorganic realms of physics and chemistry, explains how lifeless chemicals come together to form living beings, and details the true complexity of seemingly simple microorganisms such as E. coli.