A Brief History of TimeRandom House Publishing Group, 2011 M05 4 - 224 páginas #1 NEW YORK TIMES BESTSELLER A landmark volume in science writing by one of the great minds of our time, Stephen Hawking’s book explores such profound questions as: How did the universe begin—and what made its start possible? Does time always flow forward? Is the universe unending—or are there boundaries? Are there other dimensions in space? What will happen when it all ends? Told in language we all can understand, A Brief History of Time plunges into the exotic realms of black holes and quarks, of antimatter and “arrows of time,” of the big bang and a bigger God—where the possibilities are wondrous and unexpected. With exciting images and profound imagination, Stephen Hawking brings us closer to the ultimate secrets at the very heart of creation. |
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Página 5
... fall to the ground . ( The story that Newton was inspired by an apple hitting his head is almost certainly apocryphal . All Newton himself ever said was that the idea of gravity came to him as he sat " in a contemplative mood " and ...
... fall to the ground . ( The story that Newton was inspired by an apple hitting his head is almost certainly apocryphal . All Newton himself ever said was that the idea of gravity came to him as he sat " in a contemplative mood " and ...
Página 6
... fall in on each other , and then to ask how things change if one adds more stars roughly uniformly distributed outside this region . According to New- ton's law , the extra stars would make no difference at all to the original ones on ...
... fall in on each other , and then to ask how things change if one adds more stars roughly uniformly distributed outside this region . According to New- ton's law , the extra stars would make no difference at all to the original ones on ...
Página 15
... fall faster than a light one , because it would have a greater pull toward the earth . The Aristotelian tradition also held that one could work out all the laws that govern the universe by pure thought : it was not necessary to check by ...
... fall faster than a light one , because it would have a greater pull toward the earth . The Aristotelian tradition also held that one could work out all the laws that govern the universe by pure thought : it was not necessary to check by ...
Página 16
... fall faster than a feather , but that is only because a feather is slowed down by air resistance . If one drops two bodies that don't have much air resistance , such as two different lead weights , they fall at the same rate . On the ...
... fall faster than a feather , but that is only because a feather is slowed down by air resistance . If one drops two bodies that don't have much air resistance , such as two different lead weights , they fall at the same rate . On the ...
Página 17
... fall at the same rate : a body of twice the weight will have twice the force of gravity pulling it down , but it will also have twice the mass . According to Newton's second law , these two effects will exactly cancel each other , so ...
... fall at the same rate : a body of twice the weight will have twice the force of gravity pulling it down , but it will also have twice the mass . According to Newton's second law , these two effects will exactly cancel each other , so ...
Otras ediciones - Ver todas
A Brief History of Time: From the Big Bang to Black Holes Stephen Hawking,Carl Sagan Vista de fragmentos - 1990 |
A Brief History of Time: From the Big Bang to Black Holes Stephen Hawking,Carl Sagan Vista de fragmentos - 1988 |
Términos y frases comunes
anthropic principle antiparticles antiquarks astronaut atoms big bang big bang singularity body boundary condition called collide complete unified theory described dimensions direction disorder distance early universe earth effect Einstein electromagnetic electrons emitted entropy event horizon exist finite force-carrying particles Friedmann galaxies Galileo gamma rays gravitational attraction gravitational field gravitational force happens idea imaginary increase infinite initial large number laws of science light cone light rays mass matter particles measure microwave million million million moving neutron star Newton nucleus observe orbits partial theories paths physicist planets position possible predicted primordial black holes protons and neutrons quantum mechanics quantum theory quarks radiation recollapse regions rotating scientist space space-time spaceship speed of light string theory sum over histories surface symmetry temperature theory of gravity theory of relativity thermodynamic arrow thousand million uncertainty principle universe expands velocity virtual particles wavelength wormhole zero