¿Para qué sirven las matemáticas? La pregunta reaparece con insistencia sin admitir una respuesta simple. Este libro la aborda a través de las historias concretas de ideas abstractas que no siempre surgieron con un fin practico y acabaron transformando la manera de contar, medir, predecir o comunicarnos. Desde las primeras tecnicas para registrar cosechas hasta la sofisticada matematica profesional contemporanea, el recorrido muestra como conceptos aparentemente inutiles estan en el origen de muchos avances. Es el caso de los numeros primos, que tras siglos de estudio son la base de la criptografia que hoy protege nuestros intercambios digitales. Aunque Rene Thom ironizaba sobre los cazadores de dragones para criticar cierta matematica demasiado encerrada en si misma, los dragones existen: modelos matematicos que permiten diseñar farmacos, explorar el universo, comprender la incertidumbre o construir ordenadores. Y todo ello sin menoscabo de otra utilidad de las matematicas, menos inmediata y no menos importante: formar una manera de pensar rigurosa, sensible a la curiosidad, el asombro y la belleza, y libre de presiones externas. Aquella que no solo puede servir para resolver problemas conocidos, sino prepararnos para los que aun no sabemos formular. Manuel de Leon es matematico, profesor de Investigacion del CSIC y fundador del Instituto de Ciencias Matematicas (ICMAT). Agata Timon es matematica y comunicadora. Es coordinadora de la Unidad de Cultura Matematica del ICMAT.

Si tu curiosidad por los dinosaurios es infinita per tu tiempo limitado, este es el libro que necesitas.Viaja al mundo prehistórico y descubre los aspectos más fascinantes de la vida de las criaturas mas asombrosas que han habitado la Tierra: los dinosaurios. El paleontologo dr. Dean Lomax da vida a estos seres del pasado en diez ensayos breves y llenos de curiosidad, pensados para quienes tienen poco tiempo pero muchas ganas de aprender.Con un lenguaje claro y cercano, el autor nos guia para entender que hace que un dinosaurio sea un dinosaurio, que comian, como evolucionaron, por que se extinguieron ¡y mucho mas!Perfecto para los amantes de los dinosaurios, de los museos de historia natural, de la paleontologia y, por supuesto, de Jurassic Park.

La nanotecnología va poco a poco entrando en nuestras vidas a través de productos tecnológicos que aprovechan las excelentes propiedades que presentan ciertos materiales cuando alguna de sus dimensiones entra dentro de la escala nanometrica. Esta revolucion tecnologica aborda campos tan importantes como la energia, la electronica o la medicina, y practicamente esta dominada por nanoparticulas metalicas o de carbono, fabricadas mediante procesos sofisticados. Sin embargo, una parte importante de los nanomateriales contemporaneos ya estaban siendo producidos por el ser humano o por la naturaleza desde hacia siglos sin que nos hubieramos percatado. De hecho, la nanocelulosa, un nanomaterial emergente basado en la ubicua celulosa, esta rompiendo esquemas al ser un ejemplo pionero de una aproximacion a la nanotecnologia generada por la propia naturaleza, y paradigma de un nuevo horizonte nanotecnologico basado en principios mas verdes. Esta obra realiza un recorrido por las bases de la nanotecnologia, la importancia de la naturaleza en la creacion de nanomateriales y a traves del desarrollo de una nanotecnologia mas sostenible mediante el ejemplo de la nanocelulosa, poniendo de manifiesto que la naturaleza nos lleva siglos de ventaja en lo que a nanofabricacion se refiere.

Transforma tu manera de cultivar y crea un espacio estético, productivo y ecológico-Crea un jardín próspero inspirado en los patrones de la naturaleza, mejor para el suelo, la fauna local y tus plantas. -Diseña tu espacio de forma sostenible, teniendo en cuenta el clima, la orografia del terreno, los recursos, la energia y tus objetivos para que todos los elementos funcionen en armonia. -Cultiva una mezcla diversa de plantas, desde arboles frutales hasta flores, hortalizas y hierbas aromaticas, para obtener cosechas durante todo el año y un jardin mas resistente, ecologico y atractivo.Repleto de ideas practicas e inspiracion, este fabuloso libro tiene todo lo que necesitas saber para crear y mantener un jardin bien diseñado y pospero. Las ilustraciones explicativas facilitan la comprension de los conceptos clave, mientras que las fotografias detalladas muestran ejemplos reales del jardin del propio autor.Mas de 130 cultivos perennes y anuales: la guia definitiva sobre que y como cultivar en tu propio espacio para obtener los mejores resultados.La guia definitiva sobre que y como cultivar en tu propio espacio para obtener los mejores resultados.

Un testimonio que, desde la mirada de un veterinario, nos muestra cómo los animales dan sentido a nuestras ciudades...y a nuestras vidas.En teoría, las ciudades somos nosotros: humanos acelerados, con ojeras de mapache y el movil pegado a la mano. Pero si afinamos un poco la mirada, como haria un pajaro al posarse en la rama de un arbol, descubrimos algo evidente y a la vez olvidado: no estamos solos.Entre el asfalto y las prisas viven millones de criaturas. Y, en medio de todas ellas, hay un veterinario que convive cada dia con historias pequeñas y enormes a la vez: esas en las que los animales no solo comparten piso, sino que rescatan vidas, calman ansiedades y sostienen duelos con una lealtad que no entiende de etiquetas.Las familias que llenan nuestros hogares ya no son exclusivamente humanas, no, son multiespecie. Humanos, gatos, perros, periquitos, tortugas y hasta ratas con mas habilidades sociales que muchos de nuestros vecinos.Con humor y emocion, Animales de ciudad te invita a adentrarte y explorar la diversidad de la vida, recordandote lo que intuias pero no decias en voz alta: la sociedad no la formamos solo los humanos... y menos mal.Una celebracion del caos urbano, de sus habitantes peludos, emplumados y escamosos, y de como, cuando todo se tambalea, a veces quien te salva la vida ni siquiera sabe hablar.

Los Elementos de Euclides es una de las escasísimas obras antiguas que puede presumir de haber constituido, casi de golpe, la base sobre la que se ha levantado toda una ciencia, en este caso la geometria y la aritmetica, al menos desde el siglo III a. C. hasta el siglo XIX. La razon de su prolongado exito radica en sus grandes virtudes expositivas y didacticas, asi como en su afan de sistematizacion deductiva.Gredos publica esta obra completa de Euclides en tres volumenes y en una exhaustiva edicion critica. Este segundo tomo incluye los libros V-IX, en los cuales se trata la teoria generalizada de la proporporcion y la teoria aritmetica.

Uma jornada fascinante pelas paisagens estranhas — e às vezes maravilhosas — da deficiência neurológica.Uma menina acredita ter ficado cega subitamente por causa de seu primeiro beijo. Uma mulher com

If youre craving a simpler, more sustainable way to garden, Low-Maintenance Eco Gardens is your perfect starting point. This beginner-friendly guide embraces the principles of permaculture to help you design and maintain self-sustaining gardens that require less effort and fewer inputs while delivering more joy, nourishment, and ecological benefit.Authors Fred Meyer, a certified permaculture designer and founder of the nonprofit EarthMind Practice, and Jen Kardos, a licensed mental health therapist and wellness coach, combine their expertise to present a fresh, accessible approach to eco-conscious gardening. Their method is rooted in working with nature rather than against it, using a holistic strategy that promotes biodiversity, natural pest and weed control, and year-round abundance. Inside, youll discover how to select and grow 60+ productive, low-maintenance plants suited for urban lots, small yards, and larger spaces alike. The book also includes detailed guidance on building practical garden systems, such as high-yield mini orchards, edible borders, and low-effort irrigation solutions. Meyer and Kardos also explore how gardens can nurture both physical and mental health, emphasizing the therapeutic benefits of connecting with nature. Whether youre growing food for your family, trying to reduce your environmental impact, or simply looking to spend less time weeding and watering, Low-Maintenance Eco Gardens will show you how to create a beautiful, resilient garden that thrives in harmony with the land and your lifestyle.

The human brain is a fragile, gelatinous mass of fat and neurons. Left to its own devices, its sheer weight would cause it to collapse in on itself, crushing the blood vessels at the base of the skull. Fortunately, our consciousness is literally floating. The cerebrospinal fluid (CSF) is a crystal-clear liquid that bathes the brain and spinal cord, providing a miraculous hydraulic cushion that reduces the brains net weight by 97 percent.This fascinating biological exploration delves into the mechanics of this internal ocean. It explains how CSF not only acts as a physical shock absorber against daily impacts, but also functions as the brains private waste management system, flushing out toxic metabolic byproducts while we sleep. The narrative examines what happens when this delicate fluid balance is disrupted, leading to debilitating conditions and chronic pressure shifts.Discover the silent, flowing protector of your intellect. Learn how this dynamic, constantly regenerating fluid suspends our neurology in a state of weightless grace, ensuring that human consciousness survives the physical trauma of everyday movement.

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.

On average, a human being blinks between 15 and 20 times a minute. While we assume this rapid closure of the eyelids is merely a mechanical reflex to lubricate the cornea and clear away dust, the math doesnt add up; we blink far more frequently than physiology requires.Neuroscientists have uncovered a profound hidden function: the blink is a cognitive punctuation mark. Rather than blinking randomly, our brains subconsciously time our blinks to occur at the precise end of sentences while reading, or during the cut-away of a film scene. During those split milliseconds of darkness, the brains default mode network briefly activates, allowing the mind to dump working memory and refocus attention.This book explores the fascinating neurological machinery behind this involuntary reflex. You will discover how the timing of blinks reveals hidden fatigue, why psychopaths blink less frequently, and how magicians and filmmakers expertly manipulate your blink rate to hide their illusions in plain sight.Realize the power of the dark spaces between your vision. By understanding the neuroscience of the blink, you will uncover how your brain constantly edits reality to keep you focused.

We are taught that the human senses are outward-facing tools: sight, sound, touch, taste, and smell exist to navigate the external world. However, there is a hidden internal sense that dictates our emotional states and decision-making processes far more profoundly than our eyes or ears. It is called interoception.Interoception is your brains continuous, subconscious perception of your internal organsthe subtle shift in your heart rate, the microscopic tension in your gut, or the shallowing of your breath. Long before your conscious, logical brain can process a complex threat or an opportunity, your interoceptive network generates "somatic markers." These are physical sensations that guide your intuition. When you say you have a "gut feeling" about a bad investment, it is not a metaphor; it is your vagus nerve aggressively signaling danger based on pattern recognition faster than conscious thought.This book breaks down the biology of intuition. You will discover why people with poor interoceptive awareness struggle with debilitating indecision, how chronic anxiety is often a misinterpretation of normal internal signals, and how you can actively train your brain to "listen" to your bodys precognitive warnings.Stop treating your body merely as a vehicle for your brain. Learn to read your internal telemetry and harness the rapid-fire intelligence of your somatic markers.

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.

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.

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