Learn about the two main vitamin groups and the major mineral elements. This free ebook, Nutrition: vitamins and minerals, looks at the two main groups of vitamins: the fat-soluble vitamins, A, D, E and K; and the water-soluble vitamins, the B group and vitamin C. It also examines the major mineral elements, and the importance of fluid balance in the body.

    

    Examples of analytical techniques are drawn from such areas as life sciences, clinical chemistry, air and water pollution, and industrial analyses. New to this edition: Excel spreadsheets on CD-ROM * New chapters on good laboratory practice, as well as genomics and proteomics * A more modern flavor.

    

    Politicians and marketers present shoddy evidence for dubious claims all the time. But smart people make mistakes too, and when it comes to statistics, plenty of otherwise great scientists--yes, even those published in peer-reviewed journals--are doing statistics wrong."Statistics Done Wrong" comes to the rescue with cautionary tales of all-too-common statistical fallacies. It'll help you see where and why researchers often go wrong and teach you the best practices for avoiding their mistakes.In this book, you'll learn: - Why "statistically significant" doesn't necessarily imply practical significance- Ideas behind hypothesis testing and regression analysis, and common misinterpretations of those ideas- How and how not to ask questions, design experiments, and work with data- Why many studies have too little data to detect what they're looking for-and, surprisingly, why this means published results are often overestimates- Why false positives are much more common than "significant at the 5% level" would suggestBy walking through colorful examples of statistics gone awry, the book offers approachable lessons on proper methodology, and each chapter ends with pro tips for practicing scientists and statisticians. No matter what your level of experience, "Statistics Done Wrong" will teach you how to be a better analyst, data scientist, or researcher.

    Through nine thrilling novels, this handy eBook bundle features the action, the intrigue, and the entire evolving story of these unique space corps—units that are comprised of a diverse group of pilots determined to fight the good fight. This bundle includes the following titles:  ROGUE SQUADRONWEDGE’S GAMBLETHE KRYTOS TRAPTHE BACTA WARWRAITH SQUADRONIRON FISTSOLO COMMANDISARD’S REVENGESTARFIGHTERS OF ADUMAR

    Because the Wright brothers worked in secrecy, word of their first flights had not reached Europe when Santos-Dumont took to the skies in 1906. The dashing, impeccably dressed inventor entertained Paris with his airborne antics--barhopping in a little dirigible that he tied to lampposts, circling above crowds around the Eiffel Tower, and crashing into rooftops. A man celebrated, even pursued by the press in Paris, London, and New York, Santos-Dumont dined regularly with the Cartiers, the Rothschilds, and the Roosevelts. But beneath his lively public exterior, Santos-Dumont was a frenzied genius tortured by the weight of his own creation.Wings of Madness chronicles the science and history of early aviation and offers a fascinating glimpse into the mind of an extraordinary and tormented man, vividly depicting the sights and sounds of turn-of-the-century Paris. It is a book that will do for aviation what The Man Who Loved Only Numbers did for mathematics.

    avoid opinion ... facts are your single clue. Get the facts!' - time Enough for Love, Robert Heinlein Does eating celery make you lighter? Do you have to be dying to have a near-death experience? Is a yawn a silent, natural scream for air; and if a little oxygen is good for you is more oxygen better? Can the humble spud kill? Did Galileo drop his balls from the Leaning tower of Pisa? Did a NASA computer really prove a miracle in the Bible actually happened? Is there any substance harder than diamond, and do diamonds really last forever? And exactly how many Eskimo words for 'snow' are there? Wherever he goes, people always ask Dr Karl to explain stuff, and in this his 26th book (26 is the only number directly between a square and a cube), he explains more myths and curly questions. Visit Dr Karl at www.drkarl.com

    Greene, who recently launched World Science U, which offers free online science courses, explains what it is that's so "elegant" about string theory while lamenting the possible limits of what dogs (and by implication humans) can ever hope to understand about the universe. The interview was conducted by Rivka Galchen, an acclaimed fiction writer and journalist, named by The New Yorker as one of 20 Writers Under 40. Cover design by Adil Dara Kim.

    This hilarious and informative book is designed for anyone who is sci-curious and wants to know more about the world around them, especially the elements of everyday science that other books ignore.

    Here, University of Tennessee history professor Freeberg, author of the Los Angeles Times Book Prize finalist Democracy’s Prisoner, shows how radically the light bulb transformed America, freeing it from the stranglehold of the gas companies, turning it from a rural to an urban society and, as the electrical grid took over, drawing a sharp line between city and country, rich and poor. For history buffs and techies alike.- Library Journal Reviews: http://reviews.libraryjournal.com/201...

    It is an invitation to my thoughts

    Traditional mathematics teaching is largely about solving exactly stated problems exactly, yet life often hands us partly defined problems needing only moderately accurate solutions. This engaging book is an antidote to the rigor mortis brought on by too much mathematical rigor, teaching us how to guess answers without needing a proof or an exact calculation.In Street-Fighting Mathematics, Sanjoy Mahajan builds, sharpens, and demonstrates tools for educated guessing and down-and-dirty, opportunistic problem solving across diverse fields of knowledge--from mathematics to management. Mahajan describes six tools: dimensional analysis, easy cases, lumping, picture proofs, successive approximation, and reasoning by analogy. Illustrating each tool with numerous examples, he carefully separates the tool--the general principle--from the particular application so that the reader can most easily grasp the tool itself to use on problems of particular interest. Street-Fighting Mathematics grew out of a short course taught by the author at MIT for students ranging from first-year undergraduates to graduate students ready for careers in physics, mathematics, management, electrical engineering, computer science, and biology. They benefited from an approach that avoided rigor and taught them how to use mathematics to solve real problems.Street-Fighting Mathematics will appear in print and online under a Creative Commons Noncommercial Share Alike license.

    The Great Ideas of Classical Physics 2. Describing MotionA Break from Aristotle 3. Describing Ever More Complex Motion 4. Astronomy as a Bridge to Modern Physics 5. Isaac NewtonThe Dawn of Classical Physics 6. Newton QuantifiedForce and Acceleration 7. Newton and the Connections to Astronomy 8. Universal Gravitation 9. Newton's Third Law 10. Conservation of Momentum 11. Beyond NewtonWork and Energy 12. Power and the Newtonian Synthesis 13. Further DevelopmentsStatic Electricity 14. Electricity, Magnetism, and Force Fields 15. Electrical Currents and Voltage 16. The Origin of Electric and Magnetic Fields 17. Unification IMaxwell's Equations 18. Unification IIElectromagnetism and Light 19. Vibrations and Waves 20. Sound Waves and Light Waves 21. The Atomic Hypothesis 22. Energy in SystemsHeat and Thermodynamics 23. Heat and the Second Law of Thermodynamics 24. The Grand Picture of Classical Physics

    The lecturer was Robert Serber, J. Robert Oppenheimer's protégé, and they learned that their job was to invent the world's first atomic bomb.Serber's lecture notes, nicknamed the "Los Alamos Primer," were mimeographed and passed from hand to hand, remaining classified for many years. They are published here for the first time, and now contemporary readers can see just how much was known and how terrifyingly much was unknown when the Manhattan Project began. Could this "gadget," based on the newly discovered principles of nuclear fission, really be designed and built? Could it be small enough and light enough for an airplane to carry? If it could be built, could it be controlled?Working with Richard Rhodes, Pulitzer Prize-winning historian of the development of the atomic bomb, Professor Serber has annotated original lecture notes with explanations of the physics terms for the nonspecialist. His preface, an informal memoir, vividly conveys the mingled excitement, uncertainty, and intensity felt by the Manhattan Project scientists. Rhodes's introduction provides a brief history of the development of atomic physics up to the day that Serber stood before his blackboard at Los Alamos. In this edition, The Los Alamos Primer finally emerges from the archives to give a new understanding of the very beginning of nuclear weapons. No seminar anywhere has had greater historical consequences.