عنوان

Black holes, wormholes, and time machines /

1439885605

9781439885604

1439885591

9781439885598

b736730

Black holes, wormholes, and time machines /

[Book]

Jim Al-Khalili.

2nd ed.

Boca Raton, FL :

Taylor & Francis,

©2012.

1 online resource (xxii, 184 pages) :

illustrations

Includes bibliographical references and index.

The 4th dimension. To do with shapes ; What is space? ; 2Dworld and 2D'ers ; Curved space ; Is there really a 4th dimension? -- Matters of some gravity. Apples and moons ; Einstein's gravity ; Free fall ; Rubber space ; Twinkle, twinkle ; Cooking the elements ; Champagne supernova in the sky -- The universe. The night sky ; How big is the Universe? ; The expanding Universe ; Hubble, bubble ... ; Space is stretching ; Did the Big Bang really happen? ; The edge of space ; A closed universe ; An open universe ; What shape is the Universe then? ; Invisible matter ; 1998: a big year in cosmology ; Is the Universe infinite? ; Why is it dark at night? ; Before the Big Bang -- Black holes. More to light than meets the eye! ; Invisible stars ; Beyond the horizon ; A hole that can never be filled ; Spinning black holes ; Falling into a black hole ; To see a black hole ; Not so black after all ; White holes -- Times are changing. What is time? ; Who invented time? ; The first moment ; Does time flow? ; Something called entropy ; Arrows of time ; Stephen Hawking gets it wrong ; A possible solution -- Einstein's time. What is so special about special relativity? ; The two faces of light ; Thought experiments and brain-teasers ; Slowing down time ; Shrinking distances ; Light : the world speed record ; When time runs backwards ; Little green men ; Fast-forward to the future ; Spacetime : the future is out there ; Gravitational times -- Time travel paradoxes. The Terminator paradox ; Trying to save the dinosaurs ; Mona Lisa's sister ; No way out? ; Parallel universes ; Where are all the time travellers? -- Wormholes. A bridge to another world ; Alice through the looking glass ; When science fact met science fiction ; Wormholes : keeping the star gate open ; Visiting a parallel universe -- How to build a time machine. Time loops ; The Tipler time machine ; Cosmic string time machines ; A recipe for a wormhole time machine ; Insurmountable problems? -- What do we know? The mother of all theories ; The end of theoretical physics ; What might new experiments tell us? ; Astronomy versus astrology ; The fascination of space.

0

Makes the ideas and theories of modern physics easily understood by anyone, from researchers to students to general science enthusiasts. Taking you on a journey through space and time, author Jim Al-Khalili covers some of the most fascinating topics in physics today, including space warps, the Big Bang, time travel, and parallel universes. Professor Al-Khalili explains often complex scientific concepts in simple, nontechnical terms and imparts an appreciation of the cosmos, helping you see how time traveling may not be so far-fetched after all. -- Back Cover.

MIL

390846

Black holes, wormholes, and time machines.

9781439885598

Cosmology, Popular works.

Space and time, Popular works.

Cosmology.

SCIENCE-- Physics-- Relativity.

Space and time.

SCI-- 061000

Al-Khalili, Jim,1962-

20201203204816.0

pn

[Book]

Y