Ebooks de ciencias, página 2 de 5

Este libro está destinado a proporcionar, en los doce primeros capítulos, un curso de Óptica física para alumnos de un primer curso de Física. Los capítulos del 13 al 20 pretenden dar al postgraduado conocimientos de la teoria electromagnetica de la luz y de la teoria cuantica de la interaccion entre radiacion y materia.

Las plantas nos pueden enseñar mucho acerca del «arduo arte de vivir bien».La admiración por la naturaleza parece acentuarse a medida que aumenta la población mundial y crecen las ciudades. Cuanto má

Y si un mundo mejor fuera posible… y estuviera más cerca de lo que creemos?En una época marcada por la división, la desconexión y la crisis medioambiental, este libro nos lleva a descubrir, de la man

Leyendo a Euclides fue escrito en 1947 con el objetivo de atraer la atención de lectores no matemáticos hacia el estudio de conceptos fundamentales de la geometría y la filosofía. Tras analizar el pensamiento socratico y deducir interesantes conclusiones de tipo filosofico, Levi introduce al lector en el analisis exhaustivo de los inmortales Elementos. La presente edicion incluye el ensayo biografico "Beppo Levi, Italia y Argentina en la vida de un matematico", de Laura Levi, hija de Beppo."La logica de la geometria de Euclides, en particular su sistematicidad y coherencia, sigue suscitando admiracion. No debiera extrañar entonces que un matematico moderno como Beppo Levi le haya dedicado un estudio profundo, aunque sin la pesada carga erudita habitual. Ni es de extrañar que, a su vez, este libro del matematico italoargentino despierte la curiosidad de lectores contemporaneos. ¿Que resulto del encuentro de Euclides con Levi a la vuelta de veintidos siglos? Lo averiguaran quienes lean este libro tan original como claro. Aprenderan a ver a Euclides, e incluso a su posible maestro, Platon, con ojos modernos. Y aprenderan, si no lo saben ya, los deleites de la conversacion con muertos sin recurrir a trucos espiritistas". Del prologo de Mario Bunge

Este libro surge de una serie de talleres y seminarios organizados por la Universidad Panamericana como parte de la Cátedra Interamericana Laudato si. A partir de la encíclica del papa Francisco, el texto aborda la crisis socioambiental como una manifestacion de una crisis mas profunda: la perdida de la dimension sagrada del mundo y la desconexion del ser humano con Dios, la naturaleza y el projimo.Dividida en tres apartados, en el primero se establece un marco teologico y filosofico sobre la crisis ecologica, analizando la critica del Papa a la modernidad y proponiendo una etica renovada. Luego, explora la "cultura del descarte" desde distintas perspectivas, incluyendo la discapacidad, la discriminacion de genero y la exclusion de los ancianos, ademas de plantear una economia mas humana y sostenible. En el tercer apartado se hace un llamado a la esperanza, rescatando enseñanzas de los pueblos originarios, reflexionando sobre la vida urbana sostenible y promoviendo una vision de la humanidad como cocreadora de un futuro mejor.A traves de diversas voces academicas y estudiantiles, este libro busca propiciar un cambio de paradigma y fomentar un compromiso real con la ecologia integral, respondiendo al llamado del papa Francisco a cuidar nuestra casa comun con una educacion transformadora.

¿Que sintieron los grandes cientificos de la historia en el momento en que alcanzaron sus grandes descubrimientos? ¿Como llegaron al instante magico en el que sus predicciones se hicieron realidad? Este increible viaje de la prediccion a la prueba nos transporta desde laboratorios ubicados en Paris y Cambridge hasta el frente ruso devastado por la guerra, pasando por bunkeres construidos bajo reactores nucleares y enormes tuneles subterraneos en la frontera suizo-francesa. Desde el electromagnetismo hasta las ondas gravitacionales de Einstein y el escurridizo neutrino de Wolfgang Pauli, el aclamado escritor y cientifico Marcus Chown nos acompana en un recorrido impresionante por los avances de la fisica moderna, deteniendose en ese instante magico en el que las matematicas y la fisica, de la mano de sus mas brillantes representantes, cambiaron para siempre la historia de la ciencia.

Cerrad los ojos. Imaginad un espacio sin límites. Imaginad los movimientos de una partida de ajedrez perfecta. Imaginad que el número 4 pudiera decirse de muchas maneras diferentes. Imaginad los acontecimientos infinitesimales que pueden conducir a que estalle la revolucion en un pais. Imaginad una tribu que, por no saber contar, no planea nada que se prolongue mas de un dia. Imaginad a Shakespeare descubriendo el numero cero y las dimensiones de una ausencia. Imaginad que pudierais leer un libro de una infinidad de maneras distintas.Me llamo Daniel Tammet, y soy sinestesico: percibo los numeros con colores y siluetas. En mi cabeza, contar es como pasear por un bosque. Tengo diagnosticado, ademas, el sindrome del sabio: puedo aprender un idioma en una semana, y recitar decimales del numero pi durante cinco horas (por eso me dieron un Guinness). De pequeño resolvi que, si conseguia reunir suficientes recuerdos y someterlos a un patron estadistico, podria predecir el comportamiento de mi madre. Los numeros primos poseen para mi la belleza de la poesia. No entendi lo que me sucedia hasta que conoci a Rain Man (al de verdad). Cada mañana me siento en mi escritorio y me pregunto: ¿y si...?

In his final work, a terminally ill author recounts his arduous sea journey to Portugal in search of a better climate for his health. Despite his physical suffering, Fielding maintains a keen eye for detail and a resilient sense of humor while observing the eccentricities of his fellow travelers. The journal provides a courageous and intimate look at the authors final days and the world he was leaving behind. It is a moving testament to the enduring human spirit.

A rigorous yet accessible exploration of the principles of reasoning, this work invites the reader to master the art of the syllogism through interactive challenges. By stripping logic of its dry academic reputation, the author turns the mechanics of thought into a compelling intellectual adventure. It is an essential guide for anyone looking to sharpen their mind while enjoying the elegance of structured deduction.

Transforming the complexities of formal logic into an engaging pastime, this book introduces a board game designed to teach the rules of clear thinking. Through the use of counters and diagrams, the reader learns to navigate the pitfalls of fallacious reasoning and embrace the clarity of valid arguments. It is a masterful example of how education can be seamlessly integrated with entertainment and play.

O livro busca dar suporte ao trabalho do professor que ensina matemática para os anos iniciais. Trazendo experiências em que as representações concretas das quatro operações fundamentais são tratadas

You see someone yawn. Within seconds, your jaw stretches, your eyes water, and you are forced to do the exact same thing. Contagious yawning is one of the most universal and uncontrollable human behaviors, yet for centuries, medical science dismissed it as a simple reflex for oxygen intake. Today, neurologists recognize it as a profound window into the evolution of human empathy.Studies show that contagious yawning is deeply linked to the brains mirror neuron systemthe same network responsible for our ability to feel compassion and understand the emotions of others. Psychopaths and those with severe antisocial disorders are notably immune to it. Furthermore, the yawn acts as an evolutionary thermoregulator, cooling the brain to maintain peak alertness within a social group during times of shared fatigue.This fascinating exploration blends evolutionary biology and modern neuroscience to decode the hidden language of the body. It reveals how an involuntary physical spasm serves as an invisible thread binding our social groups together, proving that our capacity to connect with one another is hardwired into our most primal reflexes.

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

For over a century, the neuron has been the undisputed star of neuroscience. Every textbook taught that these electrical wires were solely responsible for our thoughts, memories, and consciousness. Meanwhile, glial cellswhich make up more than half of the human brainwere dismissed as mere "glue" (the literal translation of glia), serving only as passive support structures for the much more important neurons.Recent breakthroughs in cellular biology have shattered this dogma. We now know that glial cells, particularly astrocytes, are the active architects of our cognitive network. They do not just support neurons; they direct them. Glial cells decide which synaptic connections are strengthened during learning, which are pruned away, and how the brain repairs itself after physical trauma. They are the chemical conductors of the electrical symphony of the mind.This groundbreaking book journeys into the forgotten half of the human brain. It explores how shifting our focus from neurons to the glial network is revolutionizing our understanding of memory, learning, and neurological diseases like Alzheimers, proving that the brains true genius lies in its quietest cells.

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.

Look at a map of global conflict zones, critical mineral deposits, and primary shipping routes. What seems like modern political strategy is actually a script written hundreds of millions of years ago. The wealth of modern nations was predetermined by the violent tearing apart of the ancient supercontinent known as Gondwana.Fractured Earth bridges the massive gap between prehistoric geology and modern geopolitics. The book explains how the specific ways tectonic plates ripped apart left massive, uneven deposits of oil, lithium, copper, and rare earth metals. These geological lotteries created the foundation for 21st-century economic dominance and supply chain vulnerabilities.Through deep geological history, you will understand why certain South American and African coastlines are mirror images rich in identical resources, and how the ancient collisions that formed the Himalayas are directly linked to todays semiconductor manufacturing constraints.Uncover the ultimate root cause of global wealth disparity. By understanding the deep mechanics of continental drift, you will never look at a world map, a geopolitical crisis, or the battery in your smartphone the same way again.

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

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.