Ebooks de ciencias, página 6 de 685

Esta obra trata-se de uma pioneira contribuição que busca apresentar o estado da arte da pesquisa científica sobre a Área de Proteção Ambiental (APA) de Macaé de Cima. Essa coletânea representa uma a

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La química es la ciencia que describe todo lo que existe. A lo largo de veinte capítulos cautivadores, con un tono ameno y divertido, Héctor Busto desglosa las particularidades de la química y todas las formas en que interviene en nuestras vidas sin que reparemos mucho en ello, desde su aplicacion en medicina hasta la fabricacion de cualquier producto, ya sea en la industria alimentaria o la construccion de un rascacielos, la invencion de un color o la reproduccion de un aroma. Y aunque parece que tenga algo de magia, la quimica consiste en comprender (y transformar) la materia que nos rodea.

Jules Vernes 20,000 Leagues Under the Sea (Illustrated Edition) is a captivating adventure novel that takes readers on a journey through the depths of the ocean. The story follows the crew of the submarine Nautilus as they explore the wonders and dangers of the underwater world, encountering fantastical sea creatures and facing thrilling challenges along the way. Vernes writing style is both descriptive and imaginative, painting vivid pictures of the marine landscapes the characters encounter. The novel is considered a classic of science fiction and has influenced countless works in the genre. Vernes attention to detail and scientific accuracy make the story not only entertaining but also educational, appealing to readers of all ages. Through the character of Captain Nemo, Verne explores themes of isolation, exploration, and the power of nature. 20,000 Leagues Under the Sea is a timeless tale that continues to capture the imagination of readers today. Fans of adventure, science fiction, and maritime exploration will find this book a rewarding and captivating read.

El libro consta de 200 problemas de determinación estructural de compuestos orgánicos mediante técnicas espectroscópicas. Cada problema incluye el espectro infrarrojo y los espectros de resonancia magnetica nuclear de 1H y 13C de un compuesto organico problema de tal manera que la utilizacion conjunta de ambas tecnicas, junto con el dato de la formula molecular, permita al estudiante una determinacion logica y razonada de la estructura del compuesto organico. Con la finalidad de mostrar al estudiante el camino a seguir, se dan las soluciones razonadas de los cincuenta primeros problemas. Las soluciones de los 150 problemas restantes se pueden obtener solicitandolas a los autores.Los espectros presentados fueron obtenidos a partir de muestras reales en las condiciones indicadas en cada caso. Todos los espectros de RMN de 1H fueron obtenidos a 300 MHz y los de 13C a 75 MHz en un espectrometro Bruker Avance 300. Los espectros IR fueron registrados en un espectrometro Nicolet Avatar 320 FTIR.

El mayor experto mundial en el campo de la energía explica por qué no alcanzaremos el objetivo global de cero emisiones en 2050.A pesar de los acuerdos internacionales, la regulación, la inversión pública y privada, el progreso tecnico y los cambios de comportamiento, el consumo mundial de combustibles fosiles aumento un 55 % entre 1997 y 2023.En el mismo periodo, la proporcion de combustibles fosiles en el consumo energetico global ha pasado del 86 % al 82 %.La cruda realidad es que la transicion en curso sera muy larga y complicada. Opera a una escala sin precedentes, exige tecnologia que aun no ha sido inventada y cantidades ingentes de recursos naturales y plantea imponentes desafios ambientales, sociales, economicos y geopoliticos. Debemos escoger: invertir un 20 % del PIB mundial en la transicion; decrecer voluntariamente (o colapsar involuntariamente); o renunciar al objetivo climatico de 1,5 ºC y fiar asi el mundo al destino, devolviendole a los dioses lo que la modernidad quiso quitarles.He aqui el trilema en torno al cual gira este breve y fascinante ensayo, escrito por uno de los cientificos e intelectuales mas originales e influyentes de nuestro tiempo.Smil es el mejor antidoto que existe contra la estupidez. David Keith, Universidad de HarvardUna guia imprescindible para comprender el mundo. Jean-Baptiste FressozEl mayor experto mundial en cuestion de energia. ScienceCualquier libro de Vaclav Smil es soplo de aire fresco y una joya en la libreria. David G. Victor, profesor de Politica y Estrategia Global en la Universidad de CaliforniaSmil es una de las mentes mas lucidas que conozco y este ensayo es impresionante. Adrian Godas, fundador de Godas ResearchVaclav Smil es mi autor favorito. Bill Gates

Olá, seja bem-vindo a esta aventura. Aqui você poderá aprender e testar seus conhecimentos em Física de maneira divertida. Ao longo do jogo, você deverá tomar decisões baseado em seus conhecimentos p

¿QUÉ TIENEN QUE VER LA LUNA Y EL TITANIC?¿QUIÉN INVENTÓ EL TELESCOPIO? ¿REALMENTE FUIMOS A LA LUNA?La Astronomía es una ciencia fundamental cuyo progreso ha estado estrechamente vinculado con el desarrollo cultural de la humanidad, ademas de ser la base del mundo moderno y del progreso tecnologico. Su historia esta llena de curiosidades, hechos extraordinarios y divertidos, muchas veces fantasticos y exoticos, pero siempre ligados al afan del ser humano por entender el extraño y fabuloso mundo que habita. En este libro, el reconocido comunicador y divulgador cientifico German Puerta Restrepo, autor del clasico Guia para viajeros del cielo, nos presenta 25 episodios asombrosos que nos recuerdan la intima y milenaria conexion que tenemos con los astros y su maravillosa facultad para sorprendernos

How Could Someone Even Think Of Doing That To Teddy?I am the matriarch of a family of six: myself, my husband, a 14 year old son, a 12 year old daughter, a 4 year old Coton de Tuléar and a 6 year old Shih Tzu. On any given day if you ask me who my favorite member of the family is, depending on raging teenage hormones and the occasional marital spat, the answer may very well be Teddy the Shih Tzu. Ironically, he is also the only one of the group that came within hours of being euthanized.25 Tails From The Rescue: 25 Dogs, 25 Stories and a Plea For Rescue AwarenessThis book was written to share the stories of fulfillment that come from rescuing a dog. Dogs are smart I dont know how they know, but they do they know when you take them home from a rescue that you are saving their life. And there is something special about that relationship which will change both of your lives forever!If Youre Considering Dog Ownership, Consider Reaching Out To A Shelter Dog And Change Your Life Forever!

Anthropogenic changes in the environment, caused by 250 years of economic growth and utilization of fuel and mineral resources, have considerably impacted the natural environment. The resulting physical and chemical alterations to the Earths sphere and our adaptive responses in the biosphere are detailed in this reference book. Readers will learn about concepts relevant to Earths history, the evolution of life, economy, ecology, environmental history, biology, and medicine and how these concepts can be linked to environmental change. The scope of this interdisciplinary work entails to convey the true degree of responsibility for the universal consequences of ecosystem degradation resulting from industrial processing, human consumption and the transformation of natural sites due to industrialization and urbanization.Topics covered in the book include:-ecosystem transformations by natural and anthropogenic forces-the Anthropocene epoch-a short history of industrialization-environmental sites and the impact of socio-economic influences -the current environmental crisis,This textbook is intended for graduate students in economics, civil engineering, architecture, agronomics, forestry, technical and mining sciences, political sciences, business studies and humanities. General readers who wish to understand the basic philosophy behind environmental studies and their relation to human activity can also benefit from this book.

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Conta a História de uma família e a vivência com os novos membros, que à vida os deu.

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lindos poemas de amor, natureza e vida.

How hot is Venus? Can you distinguish between a pulsar and a quasar? Is there a universe or a multiverse? Where do we fit into the infinitely grand scheme of things? How do we map the Cosmic Microwave Background? Most tantalizing of all: Is there anyone out there? The answers to these and many other far-out questions lie in your hands. Everyones gazing at the heavens, but a voyage through the star-studded contents of this book will blow your mind. Astronomy encapsulates the terrifying hugeness of the cosmos into bite-size particles that mere earthlings can understand: 50 incredible discoveries brought down to Earth using no more than two pages, 300 words, and a picture. This one small volume takes you on a cosmic tour, shedding light on the most awesome of objects and places, explaining some very big ideas, concepts, and discoveries, and presenting the scientists and observers who have done so much to crack Life, the Universe, and Everything. Welcome aboard.

When was radium discovered? Who are Dmitri Mendeleev and Glenn T. Seaborg? Who discovered uraniums radioactivity? Which element is useful for dating the age of Earth? And why doesnt gold have a scientific name? 30-Second Elements presents you with the very foundations of chemical knowledge, explaining concisely the 50 most significant chemical elements. This book uses helpful glossaries and tables to fast track your knowledge of the other 68 elements and the relationships between all of them.

Adapt or die: its natures most famous imperative. But how does evolution actually happen? Its too slow to see, but its going on all around you, all the time. Even if youre on top of the key terms variation? Natural selection? Parent-offspring conflict? you still need some context to put them in. From populations to speciation and polymorphism to evolutionary psychology, heres the one-stop source for all you need to know. Evolution unlocks the laboratory of life, dissecting it into the 50 most significant topics that provide the missing links to understand the natural worlds four-billion-year ancestry and the process of natural selection in which species either adapt in myriad ways mutation, ingenuity, and intelligence to meet the challenges of a changing environment, or die. Unravel the development of living organisms, at micro and macro level from genes to geniuses.

From Rubiks cubes to Godels incompleteness theorem, everything mathematical explained, with colour illustrations, in half a minute. Maths is enjoying a resurgence in popularity. So how can you avoid being the only dinner guest who has no idea who Fermat was, or what he proved? The more you know about Maths, the less of a science it becomes. 30 Second Maths takes the top 50 most engaging mathematical theories, and explains them to the general reader in half a minute, using nothing more than two pages, 200 words and one picture. Read at your own pace, and discover that maths can be more fascinating than you ever imagined.

The bestselling 30-Second... series takes a revolutionary approach to learning about those subjects you feel you should really understand. Each title selects a popular topic and dissects it into the 50 most significant ideas at its heart. Each idea, no matter how complex, is explained in 300 words and one picture, all digestible in 30 seconds. 30-Second Quantum Theory tackles a mindbendingly mysterious area of physics, introducing the 50 most significant quantum quandaries and ideas. In a world where the quantum physics of electronics is an everyday essential and new quantum developments make headline news, you will visit Parallel Worlds, ride Wave Theory, and learn just enough to talk with certainty about Uncertainty Theory and to untangle the mysteries of quantum entanglement.