Cosmic Time Travel A Scientific Odyssey

The renowned scientific writer Dr. Barry Parker stirs our secret yearnings--this time to revisit the past or travel far into the future--as he takes us on a thrilling ride through space and time. Since Einstein's discovery of the Special Theory of Relativity, which proved that time is not absolute, the imaginative scribblings of science fiction writers took on a new meaning.

Barry Parker, Ph.D, is an award-winning science writer and the author of eleven highly acclaimed books in popular science, including Alien Life, Cosmic Time Travel, Einstein's Dream, and Einstein's Brainchild.

Introduction

1

(12)

Einstein and the Elasticity of Time

13

(28)

Einstein: The Man

18

(9)

The Discovery of Time Dilation

27

(6)

Relativistic Time Travel and the Twin Paradox

33

(2)

Four-dimensional Space-time

35

(6)

Space That Bends and Twists

41

(24)

What Is Space?

41

(2)

The Geometry of Space

43

(1)

Gauss

44

(4)

Bolyai, Lobachevski, and Hyperbolic Geometry

48

(3)

Riemann and Elliptical Geometry

51

(4)

Extension to the Fourth Dimension

55

(3)

Hyperspace Time Travel

58

(2)

Global and Local Curved Space

60

(2)

Other Universes

62

(3)

Taming the Curvature

65

(22)

Zurich

71

(1)

To Prague

72

(2)

Collaboration with Grossman

74

(3)

Other Gravitational Theories

77

(1)

To Berlin

78

(2)

The Final Struggle

80

(2)

Curved Space-time and Matter

82

(3)

The Twin Paradox Resolved

85

(2)

The Nature of Time and Space-time

87

(16)

The ``Flow'' of Time

90

(1)

Can Time be Reversed?

91

(2)

Thermodynamics and the Arrow of Time

93

(3)

Other Arrows of Time

96

(3)

Universal Time

99

(1)

Time at the Ends of Time

100

(1)

Space and Time

101

(2)

The Discovery of Space-time Tunnels

103

(18)

The Acceptance of General Relativity

103

(6)

The Schwarzschild Solution

109

(8)

The Einstein--Rosen Bridge

117

(2)

Kruskal Coordinates

119

(1)

Details of the Wormhole

120

(1)

Rips in the Fabric of Space: Black Holes

121

(20)

The Invisible Pup

121

(3)

Neutron Stars and Life Cycles

124

(2)

Black Holes

126

(4)

Properties of Black Holes

130

(5)

Geometry of a Schwarzschild Black Hole

135

(6)

Spinning Gateways

141

(24)

The ``No Hair'' Theorem

143

(3)

Primordial Black Holes

146

(2)

Exploding Black Holes

148

(6)

Details of Kerr Black Holes

154

(2)

In Orbit Around a Kerr Black Hole

156

(2)

A Trip into a Kerr Black Hole

158

(3)

Other Types of Black Holes

161

(4)

Searching For Time Tunnels

165

(26)

Cyg X-1

167

(6)

LMC X-3

173

(5)

A0620-00

178

(3)

SS 433

181

(3)

Galactic Black Holes

184

(3)

Is There a Black Hole in the Center of Our Galaxy?

187

(1)

Why Are There So Few Black Hole Candidates?

188

(3)

Journey into a Black Hole

191

(24)

Journey into a Black Hole

192

(10)

Fundamental Problems

202

(3)

Tidal Forces

205

(3)

Exits and White Holes

208

(1)

Radiation Problems

209

(1)

Causality Problems

210

(3)

Wormholes

213

(2)

Overcoming the Problems

215

(24)

Sagan and Thorne

215

(1)

Working Out the Details

216

(3)

Exotic Matter

219

(3)

Transforming the Wormhole into a Time Machine

222

(4)

Other Methods of Making Time Machines

226

(2)

Tipler's Time Machines

228

(3)

Causality Revisited

231

(1)

Friedman

232

(1)

Building a Traversable Wormhole

233

(2)

Quantum Gravity

235

(4)

Wormholes and Other Universes

239

(20)

Hawking's Workholes

239

(3)

Controversy

242

(3)

Other Universes

245

(6)

Other Wormholes

251

(2)

Trouble in Wormville

253

(2)

Another Approach to Wormholes and Other Universes

255

(4)

Advanced Civilizations and Time Travel

259

(16)

Evidence for Other Solar Systems

259

(3)

Statistical Evidence for Life

262

(4)

Tipler's Views

266

(2)

Large-Scale Radio Searches

268

(2)

Supercivilizations

270

(2)

Could an Advanced Civilization Build and Maintain a Wormhole?

272

(1)

Networks of Wormholes

273

(2)

Faster Then Light?

275

(10)

Tachyons

276

(1)

Properties of Tachyons

277

(1)

Detecting Tachyons

278

(1)

Do Tachyons Exist?

279

(2)

Other Methods of Obtaining Superluminal Speeds

281

(2)

The Quantum Connection

283

(2)

Epilogue

285

(4)

Glossary

289

(8)

Bibliography

297

(6)

Index

303

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Cosmic Time Travel A Scientific Odyssey

Summary

Author Biography

Table of Contents

Supplemental Materials