Títulos en Ciencia e ingeniería

Before there were mammals on land, there were dinosaurs. And before there were fish in the sea, there were cephalopods - the ancestors of modern squid and Earth's first truly substantial animals. Cephalopods became the first creatures to rise from the seafloor, essentially inventing the act of swimming. With dozens of tentacles and formidable shells, they presided over an undersea empire for millions of years. But when fish evolved jaws, the ocean's former top predator became its most delicious snack. Cephalopods had to step up their game.

How does life work? How does nature produce the right numbers of zebras and lions on the African savanna, or fish in the ocean? How do our bodies produce the right numbers of cells in our organs and bloodstream? In The Serengeti Rules, award-winning biologist and author Sean B. Carroll tells the stories of the pioneering scientists who sought the answers to such simple yet profoundly important questions.

Our brains are the most complex machines known to humankind, but they have an Achilles heel: The very molecules that allow us to exist can also sabotage our minds. Here are true accounts of unruly molecules and the diseases that form in their wake, from total loss of inhibitions to florid psychosis to compulsive lying.

Dish up the red meat, eggs, and whole milk! In this well-researched and captivating narrative, veteran food writer Nina Teicholz proves how everything we've been told about fat is wrong. For decades, Americans have cut back on red meat and dairy products full of "bad" saturated fats. We obediently complied with nutritional guidelines to eat "heart healthy" fats found in olive oil, fish, and nuts, and followed a Mediterranean diet heavy on fruits, vegetables, and grains. Yet the nation's health has declined. What is going on?

Human history has seen many surprising and profound turning points. The ways that humans learned to use raw materials to create activity and resources set the stage for the most compelling and life-altering phase of the modern era, the Industrial Revolution. Born during this time on different continents but connected by similar interests, two men indelibly marked their generation and those that followed with their genius and foresight. This audiobook covers the war of currents and the individual lives of Tesla and Edison.

The deep-learning revolution has brought us driverless cars, the greatly improved Google Translate, fluent conversations with Siri and Alexa, and enormous profits from automated trading on the New York Stock Exchange. Deep-learning networks can play poker better than professional poker players and defeat a world champion at Go. In this book, Terry Sejnowski explains how deep learning went from being an arcane academic field to a disruptive technology in the information economy.

How did human minds become so different from those of other animals? What accounts for our capacity to understand the way the physical world works, to think ourselves into the minds of others, to gossip, read, tell stories about the past, and imagine the future? These questions are not new: they have been debated by philosophers, psychologists, anthropologists, evolutionists, and neurobiologists over the course of centuries. One explanation widely accepted today is that humans have special cognitive instincts.

Las evidencias sobre el futuro se acumulan: para responder a la emergencia climática, debemos poner fin al uso de tecnologías y sistemas de producción obsoletos, dar paso a otras más eficientes y limpias, y rediseñar la economía. El problema es tecnológico. Las tecnologías que nos hicieron más sanos, ricos y longevos deben ser sustituidas necesariamente por otras, ya disponibles y centradas en la sostenibilidad.

Come le piante navigano intorno al mondo, come portano la vita su isole sterili, come sono state in grado di crescere in luoghi inaccessibili e inospitali, come riescono a viaggiare attraverso il tempo, come convincono gli animali a farsi trasportare ovunque. Sono solo alcune delle incredibili storie raccontate da Stefano Mancuso.

In The Blank Slate, Steven Pinker, one of the world's leading experts on language and the mind, explores the idea of human nature and its moral, emotional, and political colorings. With characteristic wit, lucidity, and insight, Pinker argues that the dogma that the mind has no innate traits, denies our common humanity and our individual preferences, replaces objective analyses of social problems with feel-good slogans, and distorts our understanding of politics, violence, parenting, and the arts.

Feeling stressed? You're not alone. Stress is an inherent aspect of life that can have tremendous negative effects on your mental and physical health. This makes coping with stress a critical part of how well we live.Once you understand the inner workings of your stress response system, you'll possess powerful knowledge that will help you understand and better deal with this common aspect of your busy life.

El reino vegetal: un mundo enorme que abarca desde seres vivos microscópicos hasta los grandes árboles de cien metros de altura y más de cien toneladas. La clorofila: responsable de la fotosíntesis. Las primeras plantas aparecieron en el mar y eran algas unicelulares. Evolución. El paso de la tierra: los musgos y helechos, las coníferas, plantas con flores... Características y dispositivos especiales de cada uno. Al incinerar los cuerpos de diferentes seres vivos, comprobamos que sus cenizas se parecen mucho entre sí. El 95% de su composición está formada por: carbono, hidrógeno, oxígeno y nitrógeno. La vida es ahorrativa, prefiere utilizar sólo unos pocos elementos, que son, por otra parte, los más comunes del Universo. Además, tales elementos se reciclan constantemente: las plantas absorben el nitrógeno, los herbívoros incorporan dichas substancias a sus organismos, para posteriormente pasar a los carnívoros. El nitrógeno vuelve a la tierra en forma de excrementos. El C02 es absorbido por las plantas gracias a la fotosíntesis. Luego vuelve a la atmósfera a través de la respiración de animales y plantas y a través de microorganismos que al descomponer la materia orgánica devuelven el carbono al medio ambiente.

Influencia de los cambios de temperatura en los seres vivos. Adaptación de la vida terrestre a los diferentes hábitat del planeta. La Termodinámica estudia el movimiento del calor. Leyes de la Termodinámica: una de las bases más sólidas de la Ciencia. Primera Ley de la Termodinámica. Segunda Ley de la Termodinámica. ¿Por qué se calientan los objetos? ¿Por qué se producen los cambios en el Universo. Origen del Sistema Solar: hace unos 5.000 millones de años.

Aunque ignoramos quiénes fueron los inventores del vidrio, es este uno de los elementos más antiguos conocidos por la Humanidad.

Una guida per tutti attraverso le rivoluzioni scientifiche che hanno sconvolto la fisica nel ventesimo secolo. Con folgorante chiarezza vengono qui spiegate la teoria della relatività generale di Einstein, la meccanica quantistica, i buchi neri, la complessa architettura dell'universo, le particelle elementari, la gravità e la natura del tempo e della mente: una limpida e divertente introduzione a quelle scoperte della fisica contemporanea che smentiscono ogni nostra percezione e intuizione immediata.

El petróleo: el combustible por excelencia de la sociedad industrializada de este siglo. Composición del petróleo y su formación. Extracción del crudo. Refinado del petróleo. Productos que se obtienen del petróleo. La energía es el constituyente más fundamental del Universo. La materia es una forma de energía concentrada. Todo nace o se crea a partir de la energía y todo acaba disipándose en forma de energía.

Breakthroughs in genetics present us with a promise and a predicament. The promise is that we will soon be able to treat and prevent a host of debilitating diseases. The predicament is that our newfound genetic knowledge may enable us to manipulate our nature - to enhance our genetic traits and those of our children. Although most people find at least some forms of genetic engineering disquieting, it is not easy to articulate why.

Are you fascinated by the laws of nature, quantum physics, and its basic concepts that seem meaningless? Quantum mechanics is a field that attempts to understand the behavior of subatomic objects using mathematical notions. The book explains uncertainty and time dependence by further elaborating on the principles of quantum states. It also describes the entanglement of particle and wave states, thereby offering interested listeners the possibility of understanding physics at a slower tempo.

¿Es posible que, por separado, la ciencia y la espiritualidad no puedan ofrecernos las claves para comprender el mundo? ¿Podemos plantearnos una perspectiva que integre ambos saberes? A la hora de explicar hechos como la conciencia humana, la conexión entre el cuerpo y la mente, el altruismo y los fenómenos anómalos, el modelo científico convencional presenta limitaciones. Para superarlas, Steve Taylor propone un nuevo camino de investigación y conocimiento: el panespiritismo. Según éste, la esencia fundamental de la realidad son el espíritu o la conciencia, no la materia.

Estamos frente a una revolución como nunca antes había sucedido, un cambio profundo que no solo transforma lo que hacemos sino también lo que somos. Hoy resulta esencial reconocer qué es aquello que nos hace humanos, cuáles son los lazos que nos sostienen como especie y nos alejan de nuestras zonas oscuras, individualistas, menos gregarias.