By Stephen Hawking, Leonard Mlodinow
From the most excellent minds of our time comes a publication that clarifies his most vital ideas.
Stephen Hawking’s world wide bestseller, A short background of Time, continues to be one of many landmark volumes in clinical writing of our time. yet for years readers have requested for a extra available formula of its key concepts—the nature of area and time, the function of God in production, and the historical past and way forward for the universe.
Professor Hawking’s reaction is that this new paintings that may consultant nonscientists all over the ongoing look for the tantalizing secrets and techniques on the center of time and space.
Although “briefer,” this e-book is far greater than an insignificant clarification of Hawking’s prior paintings. A Briefer historical past of Time either clarifies and expands at the nice topics of the unique, and files the most recent advancements within the field—from string conception to the quest for a unified thought of all of the forces of physics. Thirty-seven full-color illustrations improve the textual content and make A Briefer heritage of Time an exciting and must-have addition in its personal correct to the nice literature of technological know-how and concepts.
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Additional info for A Briefer History of Time
He named that force gravity (before Newton the word gravity meant only either a serious mood or a quality of heaviness). He also invented the mathematics that showed numerically how objects react when a force such as gravity pulls on them, and he solved the resulting equations. In this way he was able to show that due to the gravity of the sun, the earth and other planets should move in an ellipse—just as Kepler had predicted! Newton claimed that his laws applied to everything in the universe, from a falling apple to the stars and planets.
This was true for Newton’s laws of motion, but now Einstein extended the idea to include Maxwell’s theory. In other words, since Maxwell’s theory dictates that the speed of light has a given value, all freely moving observers must measure that same value, no matter how fast they are moving toward or away from its source. This simple idea certainly explained—without the use of the ether or any other preferred frame of reference—the meaning of the speed of light in Maxwell’s equations, yet it also had some remarkable and often counterintuitive consequences.
Most people nowadays would find the picture of our universe as an infinite tower of turtles rather ridiculous. But why should we think we know better? Forget for a minute what you know—or think you know—about space. Then gaze upward at the night sky. What would you make of all those points of light? Are they tiny fires? It can be hard to imagine what they really are, for what they really are is far beyond our ordinary experience. If you are a regular stargazer, you have probably seen an elusive light hovering near the horizon at twilight.
A Briefer History of Time by Stephen Hawking, Leonard Mlodinow