Ebooks de ciencias, página 7 de 701

A Série Universitária foi desenvolvida pelo Senac São Paulo com o intuito de preparar profissionais para o mercado de trabalho. Os títulos abrangem diversas áreas, abordando desde conhecimentos teóri

When we look at a globe, we see seven distinct landmasses. But geography holds a massive, hidden secret. Just beneath the turbulent waves of the Pacific Ocean, surrounding the islands of New Zealand and New Caledonia, lies an enormous, fully recognized eighth continent, 94 percent of which is completely submerged.Submerged Zealandia tells the thrilling scientific detective story of how geologists spent decades proving the existence of a landmass half the size of Australia. This wasnt a mythological Atlantis, but a massive chunk of continental crust that violently broke away from the supercontinent Gondwana and slowly sank beneath the sea over millions of years.The book details the extreme challenges of deep-sea bathymetry and satellite gravity mapping required to chart this invisible world. It uncovers what Zealandias fossilized drowned valleys and submerged mountain ranges tell us about the earths violent tectonic history and the ancient flora and fauna that once thrived there.Expand your understanding of the planet you live on. This geological expedition proves that the map of the world is far from finished, and that entire continents can still be hiding right beneath our feet.

Desde el origen del universo hasta los agujeros negros, descubre las 10 cosas que todos deberíamos saber sobre el universo.Si tienes grandes preguntas sobre el espacio, este libro te las responderá de forma amena, rigurosa y concisa. La brillante astrofisica de la Universidad de Oxford, Dr. Becky Smethurst nos guia con naturalidad a traves de las galaxias, los misterios de los agujeros negros, la materia oscura y lo que existia antes del Big Bang.Tambien presenta pruebas para averiguar si realmente estamos solos, iluminando todo aquello que todavia no sabemos y mucho mas.Perfecto para los amantes de la astronomia, el universo, y por supuesto, las galaxias muy, muy lejanas.

Si piensas en una flor, ¿cuál te viene primero a la cabeza? ¿Y sabes dónde encontrarla? ¿Cuántos pétalos tiene? ¿Te has dado cuenta de que, a veces, para identificar una flor, lo que hay que mirar son las hojas de la planta?Fijate: flores silvestres es una pequeña guia para iniciarse en la observacion de la naturaleza.¡Cuelgatela y sal a explorar!

Del 0 al infinito: historias curiosas para amar los números​¿Crees que los números son solo cuentas y fórmulas?Prepárate para descubrir su lado más fascinante y sorprendente. En Los secretos de los n

Land is one of the most emotive and symbolically powerful issues in Africa. In rural contexts, the collision of history, class, race, gender, time and space has made meaningful efforts to overcome economic inequality complex. In South Africa, the end of slavery and its subsequent creation of buffer communities for military purposes in the 1850s all collided with the stalled emergence of a relatively self-sufficient Black peasantry. The dismantling of this Black agrarian class in the twentieth century involved the incubation of white producers and their favourable positioning within product markets. In a programme of statecraft, that explains our countrys prevalent inequality and widespread economic inactivity.New Settler or Old Tenant? explores how this past continues to shape the present. Using a rich body of archival, news, census, legal and primary sources spanning almost two centuries, the book traces the construction and reproduction of racial hierarchies in land, labour and product markets. Across the rural Eastern Cape from the lands between the Fish and Keiskamma rivers moving further north towards Kat River Valley, Sada (Whittlesea) and the Glen Grey area this journey reveals the origin stories of enduring rural economic conflicts and the heavy and tormenting legacy these struggles impose on the present.From the agrarian reforms of the 1830s, designed to secure labour after the end of slavery, to the failed Ciskeian experiments to remake a Black commercial agrarian class as a buffer community, and the mass resettlement of people into marginal lands, this book follows the long arc of history. To find multi-generation stories of change. At its heart are labour tenants, so-called squatters and relocated families historical actors in an over century-long struggle over land and livelihoods. In the democratic era, these communities, once marginalised and displaced, now stand as landholders (or tenants?) and citizens. Who await different futures on the land. In this life. Before heaven.Ayabonga Cawe challenges us to reckon with how the deep and enduring economic insecurity of rural life in South Africa undermines attempts at redress and the promise of overcoming agrarian duality and inequality.

Descubre la vida secreta de tus mejores amigos. Acompaña a Rusty mientras pasa el día con su familia. Descubre cómo ve y, sobre todo, cómo huele el mundo que lo rodea. Rusty utiliza su increíble olfato para reconocer a sus amigos, tanto humanos como perros, para saber donde encontrar algo sabroso que comer y como volver con su cuidador.Descubre como su familia lo hace sentirse querido y seguro cuando conoce a gente nueva, a otros perros o cuando se queda solo en casa.Despues de pasar un dia con Rusty, sabras exactamente como ser el mejor amigo de tu perro.

Descubre la vida secreta de tus mejores amigos. Descubre la vida secreta de los gatos junto al experto en comportamiento felino Dr. John BradshawAcompaña a Libby durante su día, mientras explora el mundo por su cuenta y cuando esta en casa con su familia. Gracias a su INCREIBLE OLFATO y memoria, Libby traza un mapa de su vecindario y aprende cuales son los lugares seguros y cuales debe EVITAR. Descubre como su dueña la ayuda a sentirse comoda en casa, jugando con ella y enseñandole donde puede RASCAR y como usar la puertita para gatos.Con esta guia esencial, aprenderas TODO lo que necesitas saber sobre tu amigo con bigotes.

Fundamentos de Ecologia apresenta uma abordagem clara e acessível sobre os princípios essenciais da ecologia, explorando as interações entre organismos e seu ambiente. A obra oferece um panorama abra

La historia del conocimiento humano está repleta de nombres, acontecimientos e ideas increíbles, y nunca más cierto cuando hablamos de una de las disciplinas que más han revolucionado el mundo científico en los ultimos siglos: la biologia. Consuelo Cuevas da cuenta de las disputas que esta ciencia suscito en Mexico, tanto en los laboratorios como en las aulas, las principales figuras que intervinieron en su desarrollo, sus centros de investigacion en el pais y muchas de las grandes aportaciones que la biologia ha hecho al pueblo mexicano desde la epoca del Porfiriato hasta finales del siglo xx.

Probablemente tomar café —la bebida más consumida en el mundo después del agua— no supone un gran acontecimiento para la mayoría de la gente; sin embargo, las historias narradas en esta obra muestran

A história da vida na Terra, em seus 4,5 bilhões de anos, tem atravessado diferentes períodos marcados por grandes destruições – em alguns deles, inclusive, a vida quase se extinguiu por completo. O

Da teoria à prática: veja como simulações interativas transformam o ensino de Óptica. Baseada em tese de doutorado, esta obra oferece caminhos para uma educação científica inovadora com IA.

Este livro abrange a tragédia socioambiental que assolou o Estado do Rio Grande do Sul, utilizando-a como um estudo de caso emblemático para dissecar um dos maiores dilemas da sociedade contemporânea

Este libro explora la relación simbiótica entre los hongos micorrízicos arbusculares y los chiles silvestres de montaña tropical, con énfasis en el chile amashito (Capsicum annuum var. glabriusculum), un valioso recurso biocultural del sureste de Mexico. A partir de investigacion cientifica desarrollada en campo y laboratorio, la obra integra conocimientos de microbiologia del suelo, agronomia y ecologia para mostrar como estas asociaciones naturales mejoran la nutricion, adaptacion y resiliencia de los cultivos en suelos pobres. Con un lenguaje claro y rigor academico, el libro aporta bases para una agricultura sostenible, la conservacion de la biodiversidad y el aprovechamiento responsable de los saberes tradicionales asociados a los chiles silvestres.

Where the land meets the sea, life clings to the margins in a world of relentless change. The intertidal zone is a place of extremes - where creatures endure crashing waves, scorching sun, and the constant ebb and flow of the tides. It is a place of resilience and adaptation and home to some of the most extraordinary organisms on the planet.Blending marine biology, oceanography and evolutionary science, marine biologist Ruth Searle takes us on a journey through the deep history of the intertidal zone - from its ancient origins as the possible cradle of life to the remarkable adaptations of the species that inhabit it today. Exploring the geological forces that shape coastlines, the mechanics of tides and waves, and the evolutionary arms race that has unfolded on the shore, this book reveals how the intertidal zone has not only survived mass extinctions but has driven some of natures most extraordinary innovations.The Intertidal Zone: Life on the Edge is a celebration of one of Earths most dynamic ecosystems - its beauty, its mysteries, and its fragility. As climate change and human activity reshape coastlines across the planet, understanding this environment has never been more urgent.

Excellent Aaron BastaniEvery leader comes to power promising growth: think back to the campaigns of Boris, Truss, Sunak, Starmer, Trump. Yet real-term income hasnt improved in the UK since 2008. Across the West, growth has stagnated for well over a decade, leading to cost of living crises, political instability and rising social tensions.Is real economic growth still possible? And with the climate emergency accelerating beyond repair, should we still be pushing for it?In Icarus Economics, acclaimed economist John Rapley argues that the problem of growth is inherently tied up with the climate crisis. We often assume that poor countries will bear the brunt of climate change, pandemics, and other exogenous shocks, but this book argues the opposite: western societies have more wealth and capital to lose and are less inherently resilient. In this book, he shows us how rich countries can grow their own economies by helping poor countries to decarbonise - and in the process, mitigate the effects of climate change.

Every home cook has experienced the frustration of a beautiful piece of meat instantly sticking to a stainless steel pan, tearing apart and ruining dinner. The instinct is to blame the pan or a lack of oil. However, the secret to a flawless, non-stick sear on raw steel isnt greaseit is a fascinating quirk of thermodynamics known as the Leidenfrost Effect.When a pan reaches a specific, critical temperature, something magical happens. A drop of water placed on the surface doesnt instantly boil away; instead, it beads up and dances furiously across the metal. This occurs because the bottom of the droplet vaporizes immediately, creating a microscopic, insulating cushion of steam that levitates the rest of the water. This exact same invisible shield of vapor is what prevents proteins from fusing to the hot metal, allowing cooks to achieve a restaurant-quality crust without tearing the food.This engaging culinary exploration bridges the gap between the physics lab and the kitchen stove. It breaks down the molecular mechanics of heat transfer, the science of steam barriers, and why temperature control is the ultimate ingredient in cooking.Say goodbye to ruined steaks and frustrating cleanups. Master the precise physics of the Leidenfrost Effect, ditch the toxic non-stick coatings, and learn to cook with the scientific confidence of a Michelin-starred chef.

For decades, consumers have scoured food labels looking for the dreaded letters "MSG," convinced that Monosodium Glutamate is a toxic chemical responsible for headaches, sweating, and heart palpitations. Restaurants proudly advertise "No MSG" to ease public anxiety. Yet, scientifically, MSG is simply sodium combined with glutamate, an amino acid naturally found in massive quantities in tomatoes, parmesan cheese, and human breast milk.So how did one of the greatest culinary discoveries of the 20th century become universally demonized? The origin of the MSG panic traces back to a single, anecdotal letter submitted to a medical journal in 1968, which casually coined the term "Chinese Restaurant Syndrome." What followed was a masterclass in mass hysteria, fueled not by clinical data, but by deeply ingrained xenophobia and a western distrust of Asian immigration.This fascinating exploration of food chemistry and cultural history completely dismantles the panic. It explores the Japanese laboratory where MSG was first synthesized to isolate the elusive fifth tasteumamiand traces its quiet adoption by massive American food corporations who hid it in snacks while publicly condemning its use in Asian cuisine.Prepare to rethink everything you know about flavor. Uncover the truth behind the scapegoat, shed the baseless fear of this crystalline seasoning, and learn how to embrace the pure, savory magic of umami in your own kitchen.

Un alegato brillante contra el antropocentrismo que revela un planeta lleno de inteligencias y culturas más allá de la humana.Darwin consideraba que los seres humanos formamos parte de la red de la vida, no la cuspide de una jerarquia natural. Sin embargo, hoy muchos siguen convencidos de que somos la especie mas inteligente, virtuosa y exitosa que ha existido. Este pensamiento erroneo nos permite explotar la Tierra en beneficio propio, llevandonos a un peligroso desequilibrio planetario. Pero ¿es inevitable esta vision y forma de vida? El mono arrogante demuestra que el excepcionalismo humano es una ideologia que depende mas de la cultura que de la biologia, mas de la ilusion y la fe que de la evidencia.Christine Webb, primatologa de Harvard, lleva años investigando las ricas vidas sociales, emocionales y cognitivas de nuestros parientes mas cercanos. Pone al descubierto los sesgos con que muchas investigaciones cientificas juzgan a otras especies y revela la complejidad a menudo ignorada del mundo no humano: desde el lenguaje de los pajaros cantores y los perritos de las praderas hasta las culturas de los chimpances y los peces de arrecife, o la sorprendente inteligencia de las plantas y los hongos. Con relatos fascinantes y nuevas investigaciones, nos ofrece una perspectiva transformadora para comprender a otros seres vivos en sus propios terminos, una vision que esta revolucionando nuestra manera de entender tanto a los demas como a nosotros mismos.Las criticas al excepcionalismo humano suelen centrarse en nuestra obligacion moral hacia las demas especies, pero olvidan lo que tambien podriamos ganar si desmontamos nuestras ilusiones de singularidad y superioridad. Este cambio de perspectiva nos llena de asombro y satisface uno de nuestros deseos mas profundos: el de pertenecer al gran conjunto del que formamos parte. Lo que esta en juego es una forma de vida mejor y sostenible, con el potencial de sanar y regenerar nuestro planeta comun.