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The revolution is here In breakthrough after breakthrough pioneering physicists are unlocking a new quantum universe which provides a better representation of reality than our everyday experiences and common sense ever could The birth of quantum computers which like Schrodinger s famous dead and alive cat rely on entities like electrons existing in a mixture of states is starting to turn the computing world on its head In his fascinating study of this cutting edge technology first published as Computing with Quantum Cats and now featuring a new foreword John Gribbin updates his previous views on the nature of quantum reality arguing for a universe of many parallel worlds where everything is real Looking back to Alan Turing s work on the Enigma machine and the first electronic computer Gribbin explains how quantum theory developed to make quantum computers work in practice as well as in principle He takes us beyond the arena of theoretical physics to explore their practical applications from machines which learn through intuition and trial and error to unhackable laptops and smartphones And he investigates the potential for this extraordinary science to allow communication faster than light and even teleportation as we step into a world of

Galaxies are the building blocks of the Universe standing like islands in space each is made up of many hundreds of millions of stars in which the chemical elements are made around which planets form and where on at least one of those planets intelligent life has emerged Our own galaxy the Milky Way is just one of several hundred million other galaxies that we can now observe through our telescopes Yet it was only in the 1920s that we realised that there is more to the Universe than the Milky Way and that there were in fact other islands out there In many ways modern astronomy began with this discovery and the story of galaxies is therefore the story of modern astronomy Since then many exciting discoveries have been made about our own galaxy and about those beyond how a supermassive black hole lurks at the centre of every galaxy for example how enormous forces are released when galaxies collide how distant galaxies provide a window on the early Universe and what the formation of young galaxies can tell us about the mysteries of Cold Dark Matter In this Very Short Introduction renowned science writer John Gribbin describes the extraordinary things that astronomers are learning about galaxies and explains how this can shed light on the origins a

One hundred years on from his birth, and 30 since his death, Richard Feynmans discoveries in modern physics are still thoroughly relevant. Magnificently charismatic and fun-loving, he brought a sense of adventure to the study of science. His extraordinary career included war-time work on the atomic bomb at Los Alamos, a profoundly original theory of quantum mechanics, for which he won the Nobel prize, and major contributions to the sciences of gravity, nuclear physics and particle theory. Interweaving personal anecdotes and recollections with clear scientific narrative, acclaimed science writers John and Mary Gribbin reveal a fascinating man with an immense passion for life a superb teacher, a wonderful showman and one of the greatest scientists of his generation.

Time travel is a familiar theme of science fiction but is it really possible Surprisingly time travel is not forbidden by the laws of physics and John Gribbin argues that if it is not impossible then it must be possible Gribbin brilliantly illustrates the possibilities of time travel by comparing familiar themes from science fiction with their real world scientific counterparts including Einstein s theories of relativity black holes quantum physics and the multiverse illuminated by examples from the fictional tales of Robert Heinlein Larry Niven Carl Sagan and others The result is an entertaining guide to some deep mysteries of the Universe which may leave you wondering whether time actually passes at all and if it does whether we are moving forwards or backwards A must read for science fiction fans and anyone intrigued by deep science

He aquí la historia de uno de los grandes enigmas científicos de nuestro tiempo y de cómo al fin ha sido desvelado. Los astrónomos, geólogos y evolucionistas del siglo XIX fueron los primeros en sugerir que, contrariamente a lo que afirma el relato biblico, la Tierra y el Sol tenian al menos millones de años. Ya a principios del siglo XX, muchos profesionales del sector asumian tacitamente que el universo era muy, muy viejo. Y, llegados los años veinte, el descubrimiento del universo en expansion por parte de Edward Hubble, junto con la teoria general de la relatividad de Einstein, apuntaron hacia un posible principio de ese mismo universo: la gran explosion primigenia o big bang. Luego se sucedieron las investigaciones y las teorias hasta que, ya en los años noventa, en la Universidad de Sussex, John Gribbin y sus colegas empezaron a desarrollar una nueva tecnica para cuantificar, clara y exactamente, la constante de Hubble. Y a mediados de 1997 habian conseguido ya la clave para establecer finalmente que el universo es mas viejo que las estrellas que contiene. Pues bien, este libro es el resultado de esas indagaciones, un intrigante relato lleno de pistas falsas, callejones sin salida y tanteos en la penumbra en busca de la verdad. La obra de un cientifico que, como investigador y astronomo, intervino directamente en el gran descubrimiento final.

This title begins with Galileo and takes the reader through to the scientific developments of string theory. An accessible narrative history, it focuses on the way in which science has progressed by building on what went before and details the work of science's greatest minds.

«SUSY» es un anagrama de supersymmetry (supersimetría) que se considera como la base para desarrollar una completa «teoría del todo» que abarcaría a todas las partículas y fuerzas del Universo y que

Quantum theory is so shocking that Einstein could not bring himself to accept it. It is so important that it provides the fundamental underpinning of all modern sciences. Without it, we''d have no nuclear power or nuclear weapons, no TV, no computers, no science of molecular biology, no understanding of DNA, no genetic engineering. In Search of Schrodinger''s Cat tells the complete story of quantum mechanics, a truth stranger than any fiction. John Gribbin takes us step by step into an ever more bizarre and fascinating place, requiring only that we approach it with an open mind. He introduces the scientists who developed quantum theory. He investigates the atom, radiation, time travel, the birth of the universe, superconductors and life itself. And in a world full of its own delights, mysteries and surprises, he searches for Schrodinger''s Cat - a search for quantum reality - as he brings every reader to a clear understanding of the most important area of scientific study today - quantum physics. In Search of Schrodinger''s Cat is a fascinating and delightful introduction to the strange world of the quantum - an essential element in understanding today''s world.