Doing What Scientists Do

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Doing what Scientists Do

Author : Ellen Doris
Publisher : Heinemann Educational Books
ISBN 13 : 9780325012452
Total Pages : 0 pages
Book Rating : 4.0/5 (124 download)

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Book Synopsis Doing what Scientists Do by : Ellen Doris

Download or read book Doing what Scientists Do written by Ellen Doris and published by Heinemann Educational Books. This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This is a splendid, down-to-earth book-especially for elementary teachers who want to do science but are unsure how to go about it. The intensity of children's interest is unmistakable. And Ellen's low-key style reassures the reader that children in any classroom can do work that is just as fine." Eleanor Duckworth, Harvard University "I want to embolden teachers who are uncertain about teaching science, and encourage others to give children's observations a central place in the curriculum." Ellen Doris When it first published, Ellen Doris' now-classic text rapidly became an indispensable resource for teachers who were searching for new ways to introduce students to science. This second edition will be every bit as essential for teachers and science leaders. Novice teachers and those looking to refresh their practice will find support to help children explore, experiment, and figure things out. Ellen deftly translates the theory of inquiry-based science instruction into methods teachers can use. She answers questions and offers advice on these central elements: how to begin how to inspire children's curiosity and facilitate their investigations how to assess children's understanding through their drawing, discussion, and writing how to structure classroom spaces, supervise fieldwork, and help children learn from one another how to keep children's priorities as well as science standards in mind. Lively classroom examples enrich Ellen's discussion. Her latest thinking will guide teachers and science leaders as they create contexts in which children can inquire, investigate, and collaborate.

What Do Scientists Do All Day?

Author : Jane Wilsher
Publisher : Wide Eyed Editions
ISBN 13 : 0711249776
Total Pages : 67 pages
Book Rating : 4.7/5 (112 download)

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Book Synopsis What Do Scientists Do All Day? by : Jane Wilsher

Download or read book What Do Scientists Do All Day? written by Jane Wilsher and published by Wide Eyed Editions. This book was released on 2020 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: What do scientists do all day? Find out in this beautifully illustrated book that features more than 100 scientists at work. Little ones can explore 14 different colorful scenes, turning the page after each to learn about eight special scientists you will find there. Spot the scientists and learn about the jobs they do in these fascinating places: nature reserve, health center, Arctic research station, hospital, museum, our new city, mission control and on the space station, observatory, aerospace center, botanical gardens, Earth Science center, energy plant, university, and technology and computer lab. Meet the environmentalist at the nature reserve, the nurse at the hospital, the archaeologist at the museum, the navigation engineer at mission control, the astronomer at the observatory, the fungi specialist at the botanical gardens...you'll be amazed at the range of things scientists work on.

How Does Government Listen to Scientists?

Author : Claire Craig
Publisher : Springer
ISBN 13 : 3319960865
Total Pages : 77 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis How Does Government Listen to Scientists? by : Claire Craig

Download or read book How Does Government Listen to Scientists? written by Claire Craig and published by Springer. This book was released on 2018-07-31 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Palgrave Policy Essential draws together recent developments in the field of science in government, policy and public debate. Practice and academic insights from a wide variety of fields have both moved on in the last decade and this book provides a consolidated survey of the relatively well established but highly scattered set of insights about the provision of deeply technical expertise in policy making (models of climate or disease, risk, Artificial Intelligence and ethics, and so on). It goes on to link this to emerging ideas about futures thinking, public engagement, narrative, and the role of values and sentiment alongside the place of scientific and scholarly insights in public decision-making and debate. The book offers an accessible overview aimed at practitioners; policy-makers looking to understand how to work with researchers, researchers looking to work with policy-makers, and the increasing numbers and types of “brokers” - people working at the interface, in science advice, public engagement and communication of science, and in expert support to decision-making in the public and private sectors. In addition to outlining recent insights and placing them in the established frameworks of authors such as Pielke and Jasanoff, the book also brings in relevant areas less traditionally associated with the subject but of increasing importance, such as modelling, futures and narrative.

Does Science Need a Global Language?

Author : Scott L. Montgomery
Publisher : University of Chicago Press
ISBN 13 : 022601004X
Total Pages : 241 pages
Book Rating : 4.2/5 (26 download)

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Book Synopsis Does Science Need a Global Language? by : Scott L. Montgomery

Download or read book Does Science Need a Global Language? written by Scott L. Montgomery and published by University of Chicago Press. This book was released on 2013-05-06 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: In early 2012, the global scientific community erupted with news that the elusive Higgs boson had likely been found, providing potent validation for the Standard Model of how the universe works. Scientists from more than one hundred countries contributed to this discovery—proving, beyond any doubt, that a new era in science had arrived, an era of multinationalism and cooperative reach. Globalization, the Internet, and digital technology all play a role in making this new era possible, but something more fundamental is also at work. In all scientific endeavors lies the ancient drive for sharing ideas and knowledge, and now this can be accomplished in a single tongue— English. But is this a good thing? In Does Science Need a Global Language?, Scott L. Montgomery seeks to answer this question by investigating the phenomenon of global English in science, how and why it came about, the forms in which it appears, what advantages and disadvantages it brings, and what its future might be. He also examines the consequences of a global tongue, considering especially emerging and developing nations, where research is still at a relatively early stage and English is not yet firmly established. Throughout the book, he includes important insights from a broad range of perspectives in linguistics, history, education, geopolitics, and more. Each chapter includes striking and revealing anecdotes from the front-line experiences of today’s scientists, some of whom have struggled with the reality of global scientific English. He explores topics such as student mobility, publication trends, world Englishes, language endangerment, and second language learning, among many others. What he uncovers will challenge readers to rethink their assumptions about the direction of contemporary science, as well as its future.

Doing Data Science

Author : Cathy O'Neil
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 144936389X
Total Pages : 320 pages
Book Rating : 4.4/5 (493 download)

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Book Synopsis Doing Data Science by : Cathy O'Neil

Download or read book Doing Data Science written by Cathy O'Neil and published by "O'Reilly Media, Inc.". This book was released on 2013-10-09 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now that people are aware that data can make the difference in an election or a business model, data science as an occupation is gaining ground. But how can you get started working in a wide-ranging, interdisciplinary field that’s so clouded in hype? This insightful book, based on Columbia University’s Introduction to Data Science class, tells you what you need to know. In many of these chapter-long lectures, data scientists from companies such as Google, Microsoft, and eBay share new algorithms, methods, and models by presenting case studies and the code they use. If you’re familiar with linear algebra, probability, and statistics, and have programming experience, this book is an ideal introduction to data science. Topics include: Statistical inference, exploratory data analysis, and the data science process Algorithms Spam filters, Naive Bayes, and data wrangling Logistic regression Financial modeling Recommendation engines and causality Data visualization Social networks and data journalism Data engineering, MapReduce, Pregel, and Hadoop Doing Data Science is collaboration between course instructor Rachel Schutt, Senior VP of Data Science at News Corp, and data science consultant Cathy O’Neil, a senior data scientist at Johnson Research Labs, who attended and blogged about the course.

The Art of Doing Science and Engineering

Author : Richard W. Hamming
Publisher : Stripe Press
ISBN 13 : 195395331X
Total Pages : 327 pages
Book Rating : 4.9/5 (539 download)

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Book Synopsis The Art of Doing Science and Engineering by : Richard W. Hamming

Download or read book The Art of Doing Science and Engineering written by Richard W. Hamming and published by Stripe Press. This book was released on 2020-05-26 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: A groundbreaking treatise by one of the great mathematicians of our time, who argues that highly effective thinking can be learned. What spurs on and inspires a great idea? Can we train ourselves to think in a way that will enable world-changing understandings and insights to emerge? Richard Hamming said we can, and first inspired a generation of engineers, scientists, and researchers in 1986 with "You and Your Research," an electrifying sermon on why some scientists do great work, why most don't, why he did, and why you should, too. The Art of Doing Science and Engineering is the full expression of what "You and Your Research" outlined. It's a book about thinking; more specifically, a style of thinking by which great ideas are conceived. The book is filled with stories of great people performing mighty deeds––but they are not meant to simply be admired. Instead, they are to be aspired to, learned from, and surpassed. Hamming consistently returns to Shannon’s information theory, Einstein’s relativity, Grace Hopper’s work on high-level programming, Kaiser’s work on digital fillers, and his own error-correcting codes. He also recounts a number of his spectacular failures as clear examples of what to avoid. Originally published in 1996 and adapted from a course that Hamming taught at the U.S. Naval Postgraduate School, this edition includes an all-new foreword by designer, engineer, and founder of Dynamicland Bret Victor, and more than 70 redrawn graphs and charts. The Art of Doing Science and Engineering is a reminder that a childlike capacity for learning and creativity are accessible to everyone. Hamming was as much a teacher as a scientist, and having spent a lifetime forming and confirming a theory of great people, he prepares the next generation for even greater greatness.

Lives of the Scientists

Author : Kathleen Krull
Publisher : HarperCollins
ISBN 13 : 1328684016
Total Pages : 101 pages
Book Rating : 4.3/5 (286 download)

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Book Synopsis Lives of the Scientists by : Kathleen Krull

Download or read book Lives of the Scientists written by Kathleen Krull and published by HarperCollins. This book was released on 2016-09-06 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientists have a reputation for being focused on their work—and maybe even dull. But take another look. Did you know that it’s believed Galileo was scolded by the Roman Inquisition for sassing his mom? That Isaac Newton loved to examine soap bubbles? That Albert Einstein loved to collect joke books, and that geneticist Barbara McClintock wore a Groucho Marx disguise in public? With juicy tidbits about everything from favorite foods to first loves, the subjects of Kathleen Krull and Kathryn Hewitt’s Lives of the Scientists: Experiments, Explosions (and What the Neighbors Thought) are revealed as creative, bold, sometimes eccentric—and anything but dull.

Science on a Mission

Author : Naomi Oreskes
Publisher : University of Chicago Press
ISBN 13 : 022673241X
Total Pages : 749 pages
Book Rating : 4.2/5 (267 download)

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Book Synopsis Science on a Mission by : Naomi Oreskes

Download or read book Science on a Mission written by Naomi Oreskes and published by University of Chicago Press. This book was released on 2021-04-19 with total page 749 pages. Available in PDF, EPUB and Kindle. Book excerpt: A vivid portrait of how Naval oversight shaped American oceanography, revealing what difference it makes who pays for science. What difference does it make who pays for science? Some might say none. If scientists seek to discover fundamental truths about the world, and they do so in an objective manner using well-established methods, then how could it matter who’s footing the bill? History, however, suggests otherwise. In science, as elsewhere, money is power. Tracing the recent history of oceanography, Naomi Oreskes discloses dramatic changes in American ocean science since the Cold War, uncovering how and why it changed. Much of it has to do with who pays. After World War II, the US military turned to a new, uncharted theater of warfare: the deep sea. The earth sciences—particularly physical oceanography and marine geophysics—became essential to the US Navy, which poured unprecedented money and logistical support into their study. Science on a Mission brings to light how this influx of military funding was both enabling and constricting: it resulted in the creation of important domains of knowledge but also significant, lasting, and consequential domains of ignorance. As Oreskes delves into the role of patronage in the history of science, what emerges is a vivid portrait of how naval oversight transformed what we know about the sea. It is a detailed, sweeping history that illuminates the ways funding shapes the subject, scope, and tenor of scientific work, and it raises profound questions about the purpose and character of American science. What difference does it make who pays? The short answer is: a lot.

R for Data Science

Author : Hadley Wickham
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 1491910364
Total Pages : 521 pages
Book Rating : 4.4/5 (919 download)

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Book Synopsis R for Data Science by : Hadley Wickham

Download or read book R for Data Science written by Hadley Wickham and published by "O'Reilly Media, Inc.". This book was released on 2016-12-12 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn how to use R to turn raw data into insight, knowledge, and understanding. This book introduces you to R, RStudio, and the tidyverse, a collection of R packages designed to work together to make data science fast, fluent, and fun. Suitable for readers with no previous programming experience, R for Data Science is designed to get you doing data science as quickly as possible. Authors Hadley Wickham and Garrett Grolemund guide you through the steps of importing, wrangling, exploring, and modeling your data and communicating the results. You'll get a complete, big-picture understanding of the data science cycle, along with basic tools you need to manage the details. Each section of the book is paired with exercises to help you practice what you've learned along the way. You'll learn how to: Wrangle—transform your datasets into a form convenient for analysis Program—learn powerful R tools for solving data problems with greater clarity and ease Explore—examine your data, generate hypotheses, and quickly test them Model—provide a low-dimensional summary that captures true "signals" in your dataset Communicate—learn R Markdown for integrating prose, code, and results

Scientist, Scientist, Who Do You See?

Author : Chris Ferrie
Publisher : Sourcebooks, Inc.
ISBN 13 : 1492675040
Total Pages : 35 pages
Book Rating : 4.4/5 (926 download)

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Book Synopsis Scientist, Scientist, Who Do You See? by : Chris Ferrie

Download or read book Scientist, Scientist, Who Do You See? written by Chris Ferrie and published by Sourcebooks, Inc.. This book was released on 2018-04-03 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: A scientific twist on a beloved children's classic that's sure to delight both parent and child! Scientist, Scientist, Who do you see? I see Marie Curie in her laboratory! The adored children's classic Brown Bear, Brown Bear gets a nerdy makeover in this science picture book by the #1 bestselling science author for kids. Chris Ferrie! Young readers will delight at taking a familiar text and poking fun at it all while learning about scientists and how they changed the world. Back matter includes brief biographical information of the featured scientists. This sweet baby scientist book parody is the perfect inspiration for scientists of all ages! One of the best books about scientists for kids of the year! Full of scientific rhyming fun, Scientist, Scientist, Who Do You See? features appearances by some of the world's greatest scientists! From Albert Einstein to Marie Curie and Ahmed Zewail, from Charles Darwin to Chien-Shiung Wu and Grace Hopper... and more!

The Knowledge Machine: How Irrationality Created Modern Science

Author : Michael Strevens
Publisher : Liveright Publishing
ISBN 13 : 1631491385
Total Pages : 368 pages
Book Rating : 4.6/5 (314 download)

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Book Synopsis The Knowledge Machine: How Irrationality Created Modern Science by : Michael Strevens

Download or read book The Knowledge Machine: How Irrationality Created Modern Science written by Michael Strevens and published by Liveright Publishing. This book was released on 2020-10-13 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: “The Knowledge Machine is the most stunningly illuminating book of the last several decades regarding the all-important scientific enterprise.” —Rebecca Newberger Goldstein, author of Plato at the Googleplex A paradigm-shifting work, The Knowledge Machine revolutionizes our understanding of the origins and structure of science. • Why is science so powerful? • Why did it take so long—two thousand years after the invention of philosophy and mathematics—for the human race to start using science to learn the secrets of the universe? In a groundbreaking work that blends science, philosophy, and history, leading philosopher of science Michael Strevens answers these challenging questions, showing how science came about only once thinkers stumbled upon the astonishing idea that scientific breakthroughs could be accomplished by breaking the rules of logical argument. Like such classic works as Karl Popper’s The Logic of Scientific Discovery and Thomas Kuhn’s The Structure of Scientific Revolutions, The Knowledge Machine grapples with the meaning and origins of science, using a plethora of vivid historical examples to demonstrate that scientists willfully ignore religion, theoretical beauty, and even philosophy to embrace a constricted code of argument whose very narrowness channels unprecedented energy into empirical observation and experimentation. Strevens calls this scientific code the iron rule of explanation, and reveals the way in which the rule, precisely because it is unreasonably close-minded, overcomes individual prejudices to lead humanity inexorably toward the secrets of nature. “With a mixture of philosophical and historical argument, and written in an engrossing style” (Alan Ryan), The Knowledge Machine provides captivating portraits of some of the greatest luminaries in science’s history, including Isaac Newton, the chief architect of modern science and its foundational theories of motion and gravitation; William Whewell, perhaps the greatest philosopher-scientist of the early nineteenth century; and Murray Gell-Mann, discoverer of the quark. Today, Strevens argues, in the face of threats from a changing climate and global pandemics, the idiosyncratic but highly effective scientific knowledge machine must be protected from politicians, commercial interests, and even scientists themselves who seek to open it up, to make it less narrow and more rational—and thus to undermine its devotedly empirical search for truth. Rich with illuminating and often delightfully quirky illustrations, The Knowledge Machine, written in a winningly accessible style that belies the import of its revisionist and groundbreaking concepts, radically reframes much of what we thought we knew about the origins of the modern world.

Project Hail Mary

Author : Andy Weir
Publisher : Ballantine Books
ISBN 13 : 0593135210
Total Pages : 497 pages
Book Rating : 4.5/5 (931 download)

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Book Synopsis Project Hail Mary by : Andy Weir

Download or read book Project Hail Mary written by Andy Weir and published by Ballantine Books. This book was released on 2021-05-04 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: #1 NEW YORK TIMES BESTSELLER • From the author of The Martian, a lone astronaut must save the earth from disaster in this “propulsive” (Entertainment Weekly), cinematic thriller full of suspense, humor, and fascinating science—in development as a major motion picture starring Ryan Gosling. HUGO AWARD FINALIST • ONE OF THE YEAR’S BEST BOOKS: Bill Gates, GatesNotes, New York Public Library, Parade, Newsweek, Polygon, Shelf Awareness, She Reads, Kirkus Reviews, Library Journal • “An epic story of redemption, discovery and cool speculative sci-fi.”—USA Today “If you loved The Martian, you’ll go crazy for Weir’s latest.”—The Washington Post Ryland Grace is the sole survivor on a desperate, last-chance mission—and if he fails, humanity and the earth itself will perish. Except that right now, he doesn’t know that. He can’t even remember his own name, let alone the nature of his assignment or how to complete it. All he knows is that he’s been asleep for a very, very long time. And he’s just been awakened to find himself millions of miles from home, with nothing but two corpses for company. His crewmates dead, his memories fuzzily returning, Ryland realizes that an impossible task now confronts him. Hurtling through space on this tiny ship, it’s up to him to puzzle out an impossible scientific mystery—and conquer an extinction-level threat to our species. And with the clock ticking down and the nearest human being light-years away, he’s got to do it all alone. Or does he? An irresistible interstellar adventure as only Andy Weir could deliver, Project Hail Mary is a tale of discovery, speculation, and survival to rival The Martian—while taking us to places it never dreamed of going.

Creating Scientists

Author : Christopher Moore
Publisher : Routledge
ISBN 13 : 1315298570
Total Pages : 176 pages
Book Rating : 4.3/5 (152 download)

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Book Synopsis Creating Scientists by : Christopher Moore

Download or read book Creating Scientists written by Christopher Moore and published by Routledge. This book was released on 2017-11-22 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn how to shift from teaching science content to teaching a more hands-on, inquiry-based approach, as required by the new Next Generation Science Standards. This practical book provides a clear, research verified framework for building lessons that teach scientific process and practice abilities, such as gathering and making sense of data, constructing explanations, designing experiments, and communicating information. Creating Scientists features reproducible, immediately deployable tools and handouts that you can use in the classroom to assess your students’ learning within the domains for the NGSS or any standards framework with focus on the integration of science practice with content. This book is an invaluable resource for educators seeking to build a "community of practice," where students discover ideas through well-taught, hands-on, authentic science experiences that foster an innate love for learning how the world works.

What Is Science? A Guide For Those Who Love It, Hate It, Or Fear It

Author : Elof Axel Carlson
Publisher : World Scientific
ISBN 13 : 9811228736
Total Pages : 263 pages
Book Rating : 4.8/5 (112 download)

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Book Synopsis What Is Science? A Guide For Those Who Love It, Hate It, Or Fear It by : Elof Axel Carlson

Download or read book What Is Science? A Guide For Those Who Love It, Hate It, Or Fear It written by Elof Axel Carlson and published by World Scientific. This book was released on 2021-03-24 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is Science? A Guide for Those Who Love It, Hate It, or Fear It, provides the reader with ways science has been done through discovery, exploration, experimentation and other reason-based approaches. It discusses the basic and applied sciences, the reasons why some people hate science, especially its rejection of the supernatural, and others who fear it for human applications leading to environmental degradation, climate change, nuclear war, and other outcomes of sciences applied to society.The author uses anecdotes from interviews and associations with many scientists he has encountered in his career to illustrate these features of science and their personalities and habits of thinking or work. He also explores the culture wars of science and the humanities, values involved in doing science and applying science, the need for preventing unexpected outcomes of applied science, and the ways our world view changes through the insights of science. This book will provide teachers lots of material for discussion about science and its significance in our lives. It will also be helpful for those starting out their interest in science to know the worst and best features of science as they develop their careers.

Data Science in Education Using R

Author : Ryan A. Estrellado
Publisher : Routledge
ISBN 13 : 1000200906
Total Pages : 315 pages
Book Rating : 4.0/5 (2 download)

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Book Synopsis Data Science in Education Using R by : Ryan A. Estrellado

Download or read book Data Science in Education Using R written by Ryan A. Estrellado and published by Routledge. This book was released on 2020-10-26 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data Science in Education Using R is the go-to reference for learning data science in the education field. The book answers questions like: What does a data scientist in education do? How do I get started learning R, the popular open-source statistical programming language? And what does a data analysis project in education look like? If you’re just getting started with R in an education job, this is the book you’ll want with you. This book gets you started with R by teaching the building blocks of programming that you’ll use many times in your career. The book takes a "learn by doing" approach and offers eight analysis walkthroughs that show you a data analysis from start to finish, complete with code for you to practice with. The book finishes with how to get involved in the data science community and how to integrate data science in your education job. This book will be an essential resource for education professionals and researchers looking to increase their data analysis skills as part of their professional and academic development.

Science in the Looking Glass:What Do Scientists Really Know?

Author : E. Brian Davies
Publisher : OUP Oxford
ISBN 13 : 0199219184
Total Pages : 312 pages
Book Rating : 4.1/5 (992 download)

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Book Synopsis Science in the Looking Glass:What Do Scientists Really Know? by : E. Brian Davies

Download or read book Science in the Looking Glass:What Do Scientists Really Know? written by E. Brian Davies and published by OUP Oxford. This book was released on 2007-06-28 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: How do scientific conjectures become laws? Why does proof mean different things in different sciences? Do numbers exist, or were they invented? Why do some laws turn out to be wrong?In this wide-ranging book, Brian Davies discusses the basis for scientists' claims to knowledge about the world. He looks at science historically, emphasizing not only the achievements of scientists from Galileo onwards, but also their mistakes. He rejects the claim that all scientific knowledge is provisional, by citing examples from chemistry, biology and geology. A major feature of the book is its defence of the view that mathematics was invented rather than discovered. While experience hasshown that disentangling knowledge from opinion and aspiration is a hard task, this book provides a clear guide to the difficulties.Full of illuminating examples and quotations, and with a scope ranging from psychology and evolution to quantum theory and mathematics, this book brings alive issues at the heart of all science.

Science, Policy, and the Value-Free Ideal

Author : Heather E. Douglas
Publisher : University of Pittsburgh Pre
ISBN 13 : 082297357X
Total Pages : 227 pages
Book Rating : 4.8/5 (229 download)

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Book Synopsis Science, Policy, and the Value-Free Ideal by : Heather E. Douglas

Download or read book Science, Policy, and the Value-Free Ideal written by Heather E. Douglas and published by University of Pittsburgh Pre. This book was released on 2009-07-15 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of science in policymaking has gained unprecedented stature in the United States, raising questions about the place of science and scientific expertise in the democratic process. Some scientists have been given considerable epistemic authority in shaping policy on issues of great moral and cultural significance, and the politicizing of these issues has become highly contentious. Since World War II, most philosophers of science have purported the concept that science should be "value-free." In Science, Policy and the Value-Free Ideal, Heather E. Douglas argues that such an ideal is neither adequate nor desirable for science. She contends that the moral responsibilities of scientists require the consideration of values even at the heart of science. She lobbies for a new ideal in which values serve an essential function throughout scientific inquiry, but where the role values play is constrained at key points, thus protecting the integrity and objectivity of science. In this vein, Douglas outlines a system for the application of values to guide scientists through points of uncertainty fraught with moral valence.Following a philosophical analysis of the historical background of science advising and the value-free ideal, Douglas defines how values should-and should not-function in science. She discusses the distinctive direct and indirect roles for values in reasoning, and outlines seven senses of objectivity, showing how each can be employed to determine the reliability of scientific claims. Douglas then uses these philosophical insights to clarify the distinction between junk science and sound science to be used in policymaking. In conclusion, she calls for greater openness on the values utilized in policymaking, and more public participation in the policymaking process, by suggesting various models for effective use of both the public and experts in key risk assessments.