Bøger af Paul Halpern

A respected physics professor and author breaks down the great debate over the Big Bang and the continuing quest to understand the fate of the universe. Today, the Big Bang is so entrenched in our understanding of the cosmos that to doubt it would seem crazy. But as Paul Halpern shows in Flashes of Creation, just decades ago its mere mention caused sparks to fly. At the center of the debate were Russian American physicist George Gamow and British astrophysicist Fred Hoyle. Gamow insisted that a fiery explosion explained how the elements of the universe were created. Attacking the idea as half-baked, Hoyle countered that the universe was engaged in a never-ending process of creation. The battle was fierce. In the end, Gamow turned out to be right -- mostly -- and Hoyle, despite his many achievements, is remembered for giving the theory the silliest possible name: "The Big Bang." Halpern captures the brilliance of both thinkers and reminds us that even those proved wrong have much to teach us about boldness, imagination, and the universe itself.

"We are obsessed with the multiverse. From blockbuster movies Doctor Strange in the Multiverse of Madness and Everything, Everywhere, All at Once to television's The Man in the High Castle and Rick and Morty, the idea that there could be an infinite number of universes holding an infinite number of possibilities captivates us. And this fascination is not new - the fascination with these repetitions dates back to the philosophers of ancient Greece. In The Allure of the Multiverse, physicist Paul Halpern examines the theory of the universe we can't seem to let go; in an infinite universe, finite components are bound to repeat their patterns again and again. Halpern traces the multiverse from the ancient Greek debate over cosmic building blocks, to German philosopher Friedrich Nietzsche's imagined eternal repetition of all events and lives in time, to Albert Einstein's special and general theories of relativity opening the door to the fourth dimension (another way of enlarging reality). All these ideas together culminated in Princeton graduate student Hugh Everett's 'Many Words Interpretation,' in which all possibilities of existence simultaneously exist. That imaginative idea led to numerous other multiverse notions, including the idea that the universe might be a collection of 'bubble universes,' each inflated from the primordial stuff of the cosmos. Yet the prospect of such a maddening labyrinth of parallel realities has led other researchers to propose alternatives, such as bouncing universes in multiple dimensions, that are every bit as perplexing. An epic through physics' history, The Allure of the Multiverse explores one of physics' most controversial - yet most persistent - ideas"

As global markets toppled during the 2008 financial crisis, the Canadian market for non-bank asset-backed commercial paper (ABCP) seemed on the verge of collapsing. Back from the Brink explains the origins of the Canadian ABCP crisis and how an ambitious market restructuring prevented a $32 billion market from falling into chaos.

Os Simpsons e a ciência utiliza toda a irreverência da série americana de desenho animado para apresentar às crianças as curiosidades da ciência para além da sala de aula. Aqui são explorados temas como mutações genéticas, os perigos da exposição aos elementos químicos, ecologia, desenvolvimento, viagens espaciais, tecnologias, e uma visão crítica sobre a ciência e sua aplicação na vida diária.

A comparative overview of common images of the universe from world art and folklore and their similarities to our current scientific understanding.

A playful and entertaining look at science on The SimpsonsThis amusing book explores science as presented on the longest-running and most popular animated TV series ever made: The Simpsons. Over the years, the show has examined such issues as genetic mutation, time travel, artificial intelligence, and even aliens. "e;What's Science Ever Done for Us?"e; examines these and many other topics through the lens of America's favorite cartoon.This spirited science guide will inform Simpsons fans and entertain science buffs with a delightful combination of fun and fact. It will be the perfect companion to the upcoming Simpsons movie.The Simpsons is a magnificent roadmap of modern issues in science. This completely unauthorized, informative, and fun exploration of the science and technology, connected with the world's most famous cartoon family, looks at classic episodes from the show to launch fascinating scientific discussions mixed with intriguing speculative ideas and a dose of humor. Could gravitational lensing create optical illusions, such as when Homer saw someone invisible to everyone else? Is the Coriolis effect strong enough to make all toilets in the Southern Hemisphere flush clockwise, as Bart was so keen to find out? If Earth were in peril, would it make sense to board a rocket, as Marge, Lisa, and Maggie did, and head to Mars? While Bart and Millhouse can't stop time and have fun forever, Paul Halpern explores the theoretical possibilities involving Einstein's theory of time dilation.Paul Halpern, PhD (Philadelphia, PA) is Professor of Physics and Mathematics at the University of the Sciences in Philadelphia and a 2002 recipient of a John Simon Guggenheim Memorial Fellowship. He is also the author of The Great Beyond (0-471-46595-X).

From Aristotle's Physics to quantum teleportation, the story of the pursuit of causes that happen faster than the speed of light

The concept of multiple unperceived dimensions in the universe is one of the hottest topics in contemporary physics. It is essential to current attempts to explain gravity and the underlying structure of the universe. The Great Beyond begins with Einstein's famous quarrel with Heisenberg and Bohr, whose theories of uncertainty threatened the order Einstein believed was essential to the universe, and it was his rejection of uncertainty that drove him to ponder the existence of a fifth dimension. Beginning with this famous disagreement and culminating with an explanation of the newest "e;brane"e; approach, author Paul Halpern shows how current debates about the nature of reality began as age-old controversies, and addresses how the possibility of higher dimensions has influenced culture over the past one hundred years.

The concept of multiple unperceived dimensions in the universe is one of the hottest topics in contemporary physics. It is essential to current attempts to explain gravity and the underlying structure of the universe. The Great Beyond begins with Einstein's famous quarrel with Heisenberg and Bohr, whose theories of uncertainty threatened the order Einstein believed was essential to the universe, and it was his rejection of uncertainty that drove him to ponder the existence of a fifth dimension. Beginning with this famous disagreement and culminating with an explanation of the newest ""brane"" approach, author Paul Halpern shows how current debates about the nature of reality began as age-old controversies, and addresses how the possibility of higher dimensions has influenced culture over the past one hundred years.

The story of the unlikely friendship between the two physicists who fundamentally recast the notion of time and history.

"A fascinating and thought-provoking story, one that sheds light on the origins of ... the current challenging situation in physics."-Wall Street Journal

An accessible look at the mysteries that lurk at the edge of the known universe and beyondThe observable universe, the part we can see with telescopes, is incredibly vast. Yet recent theories suggest that there is far more to the universe than what our instruments record-in fact, it could be infinite. Colossal flows of galaxies, large empty regions called voids, and other unexplained phenomena offer clues that our own "e;bubble universe"e; could be part of a greater realm called the multiverse. How big is the observable universe? What it is made of? What lies beyond it? Was there a time before the Big Bang? Could space have unseen dimensions? In this book, physicist and science writer Paul Halpern explains what we know?and what we hope to soon find out?about our extraordinary cosmos.Explains what we know about the Big Bang, the accelerating universe, dark energy, dark flow, and dark matter to examine some of the theories about the content of the universe and why its edge is getting farther away from us fasterExplores the idea that the observable universe could be a hologram and that everything that happens within it might be written on its edgeWritten by physicist and popular science writer Paul Halpern, whose other books include Collider: The Search for the World's Smallest Particles, and What's Science Ever Done For Us: What the Simpsons Can Teach Us About Physics, Robots, Life, and the Universe

Following the end of the First World War the Mediterranean Fleet found itself heavily involved in the Eastern Mediterranean, the Sea of Marmora, the Black Sea and to a lesser extent, the Adriatic. This title shows the Mediterranean Fleet back to preparation for a major war, applying the lessons of World War One.

An amazing journey throughout the universe in a search for other planets and the possibility of extraterrestrial life.

A guide to the myriad possibilities for cosmic apocalypse.