Engineering Physics

Escucha ahora la biografía definitiva de Albert Einstein, uno de los iconos del siglo XX y su mayor genio.

You are reading the word now right now. But what does that mean? What makes the ephemeral moment "now" so special? Its enigmatic character has bedeviled philosophers, priests, and modern-day physicists from Augustine to Einstein and beyond. Einstein showed that the flow of time is affected by both velocity and gravity, yet he despaired at his failure to explain the meaning of now. Equally puzzling: Why does time flow? Some physicists have given up trying to understand and call the flow of time an illusion.

Quantum theory is the most revolutionary discovery in physics since Newton. This book gives a lucid, exciting, and accessible account of the surprising and counterintuitive ideas that shape our understanding of the sub-atomic world. It does not disguise the problems of interpretation that still remain unsettled 75 years after the initial discoveries. Uncertainty, probabilistic physics, complementarity, the problematic character of measurement, and decoherence are among the many topics discussed.

On the night of March 26, 1938, nuclear physicist Ettore Majorana boarded a ship, cash and passport in hand. He was never seen again. In A Brilliant Darkness, theoretical physicist Joo Magueijo tells the story of Majorana and his research group, the Via Panisperna Boys, who discovered atomic fission in 1934. As Majorana, the most brilliant of the group, began to realize the implications of what they had found, he became increasingly unstable.

In 1927, Niels Bohr and Albert Einstein began a debate about the interpretation and meaning of the new quantum theory. This would become one of the most famous debates in the history of science. What (if any) limits should we place on our expectations for what science can tell us about physical reality? As Quantum Drama reveals, science owes a large debt to those who kept the discussions going before definitive experimental inquiries became possible. Although experiment moved the Bohr-Einstein debate to a new level, it has by no means removed or resolved the fundamental question.

While scientists double down on the shocking figures, we still find ourselves unable to discuss climate change meaningfully among friends and neighbours - or even to grapple with it ourselves. The key to progress on climate change is in the psychology of human attitudes and our ability to change. Whether you're already alarmed and engaged with the issue, concerned but disengaged, a passive sceptic or an active denier, understanding our emotional reactions to climate change, is critical to coping on an individual level and convincing each other to act.

Over the past few decades, a handful of scientists have been racing to explain a disturbing aspect of our universe: only four percent of it consists of the matter that makes up you, me, our books, and every star and planet. The rest is completely unknown. Richard Panek tells the dramatic story of the quest to find this “dark” matter and an even more bizarre substance called “dark energy”. This is perhaps the greatest mystery in all of science, and solving it will bring fame, funding, and certainly a Nobel Prize.

For a physicist, all the world is information. The universe and its workings are the ebb and flow of information. We are all transient patterns of information, passing on the recipe for our basic forms to future generations using a four-letter digital code called DNA. In this engaging and mind-stretching account, Vlatko Vedral considers some of the deepest questions about the universe and considers the implications of interpreting it in terms of information.

These stories from Quanta Magazine map the routes of mathematical exploration, showing listeners how cutting-edge research is done, while illuminating the productive tension between conjecture and proof, theory and intuition. Listeners of The Prime Number Conspiracy are headed on "breathtaking intellectual journeys to the bleeding edge of discovery strapped to the narrative rocket of humanity's never-ending pursuit of knowledge," says Quanta editor-in-chief Thomas Lin.

From adrenaline to dopamine, most of us are familiar with the chemicals that control us. They are the hormones and neurotransmitters that our brains run on, and Overloaded looks at the role they play in every aspect of our lives, from what we remember, how we make decisions and who we love to basic survival drives such as hunger, fear and sleep.

Scientific developments radically alter our understanding of the world. Whether it's technology, climate change, health research, or the latest revelations of neuroscience, physics, or psychology, science has, as Edge editor John Brockman says, "become a big story, if not the big story". In that spirit this new addition to Edge.org's fascinating series asks a powerful and provocative question: What do you consider the most interesting and important recent scientific news?

Since the 1950s, scientists have attempted to harness nuclear fusion—the process that creates the Sun's energy—to generate near-limitless amounts of electricity. But the fact that we still have no fusion power plants is testament to the complexities of the challenge. Now, the deepening climate crisis means that researchers around the world are in a race to create a mini-Sun here on Earth. The glittering prize is an energy source that emits no greenhouse gases and could solve energy equity and supply issues at a stroke.

The Big Bang is all but dead, and we do not yet know what will replace it. Our universe's "beginning" is at an end. What does this have to do with us here on Earth? Our lives are about to be dramatically shaken again - as altered as they were with the invention of the clock, the steam engine, the railroad, the radio and the Internet.

Roberts' model, called quantum space theory, has been praised for how it offers an intuitively accessible picture of 11 dimensions and for powerfully extending the insight of general relativity, eloquently translating the four forces into unique kinds of geometric distortions while offering us access to the underlying deterministic dynamics that give rise to quantum mechanics. That remarkably simple picture explains the mysteries of modern physics in a way that's fully commensurate with Einstein's Intuition.

They say you can't teach an old dog new tricks. But what about relativity? Physics professor Chad Orzel and his inquisitive canine companion, Emmy, tackle the concepts of general relativity in this irresistible introduction to Einstein's physics. Through armchair- and sometimes passenger-seat-conversations with Emmy about the relative speeds of dog and cat motion or the logistics of squirrel-chasing, Orzel translates complex Einsteinian ideas into examples simple enough for a dog to understand.

Frankenstein: Or, Modern Prometheus by Mary Shelley had a huge impact on Gothic horror and science fiction genres. The name Frankenstein has become part of our everyday language, often used in derogatory terms to describe scientists who have overstepped a perceived moral line. But how did a 19-year-old woman with no formal education come up with the idea for an extraordinary novel such as Frankenstein?

Written in his early 60s, Tesla looks back on the events that shaped his life as the inventor of our modern world. Like many exceptional artists, scientists, and engineers, Tesla's senses and intellect worked on a higher level, which often afflicted him physically. Yet, he overcame, and used his special abilities and strong educational background to make electricity the servant of man.

In an age of unprecedented exploration and innovation, our oceans remain largely unknown, and endlessly fascinating: full of mystery, danger, beauty, and inspiration. Bill Streever - a longtime deep-sea diver himself - has masterfully woven together the science and history of Earth's last remaining frontier: the sea.

In Tides: The Science and Spirit of the Ocean, writer, sailor, and surfer Jonathan White takes listeners across the globe to discover the science and spirit of ocean tides. In the Arctic, White shimmies under the ice with an Inuit elder to hunt for mussels in the dark cavities left behind at low tide; in China, he races the Silver Dragon, a 25-foot tidal bore that crashes 80 miles up the Qiantang River; in France, he interviews the monks that live in the tide-wrapped monastery of Mont Saint-Michel; in Chile and Scotland, he investigates the growth of tidal power generation.

In these brilliant essays, Lightman explores the emotional life of science, the power of imagination, the creative moment, and the alternate ways in which scientists and humanists think about the world. Along the way, he provides in-depth portraits of some of the great geniuses of our time, including Albert Einstein, Richard Feynman, Edward Teller, and astronomer Vera Rubin. Thoughtful, beautifully written, and wonderfully original, A Sense of the Mysterious confirms Alan Lightman's unique position at the crossroads of science and art.