Explores current scientific thinking on how matter and energy interact, discussing the structure of space as a dynamic Grid that creates physical matter, and examining core theory, which attempts to reconcile gravity with electromagnetism and nuclear forces.
Our understanding of nature’s deepest reality has changed radically, but almost without our noticing, over the past twenty-five years. Transcending the clash of older ideas about matter and space, acclaimed physicist Frank Wilczek explains a remarkable new discovery: matter is built from almost weightless units, and pure energy is the ultimate source of mass. He calls it “The Lightness of Being.” Space is no mere container, empty and passive. It is a dynamic Grid—a modern ether— and its spontaneous activity creates and destroys particles. This new understanding of mass explains the puzzling feebleness of gravity, and a gorgeous unification of all the forces comes sharply into focus.
The Lightness of Being is the first book to explore the implications of these revolutionary ideas about mass, energy, and the nature of “empty space.” In it, Wilczek masterfully presents new perspectives on our incredible universe and envisions a new golden age of fundamental physics.
About the Title |
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ix | |
Reader's Guide |
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xi | |
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PART I The Origin of Mass |
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3 | (8) |
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11 | (7) |
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18 | (4) |
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22 | (4) |
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26 | (6) |
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32 | (26) |
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58 | (15) |
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The Grid (Persistence of Ether) |
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73 | (39) |
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112 | (16) |
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128 | (5) |
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Music of the Grid: A Poem in Two Equations |
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133 | (2) |
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135 | (10) |
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PART II The Feebleness of Gravity |
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Is Gravity Feeble? Yes, in Practice |
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145 | (3) |
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Is Gravity Feeble? No, in Theory |
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148 | (3) |
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151 | (1) |
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152 | (11) |
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PART III Is Beauty Truth? |
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Unification: The Siren's Song |
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163 | (14) |
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Unification: Through a Glass, Darkly |
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177 | (5) |
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182 | (3) |
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185 | (7) |
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Anticipating a New Golden Age |
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192 | (7) |
Epilogue: A Smooth Pebble, a Pretty Shell |
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199 | (6) |
Acknowledgments |
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205 | (2) |
Appendix A: Particles Have Mass, the World Has Energy |
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207 | (4) |
Appendix B: The Multilayered, Multicolored Cosmic Superconductor |
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211 | (6) |
Appendix C: From ``Not Wrong''to (Maybe) Right |
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217 | (4) |
Glossary |
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221 | (22) |
Notes |
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243 | (16) |
Illustration Credits |
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259 | (2) |
Index |
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261 | |
Currently the Herman Feshbach Professor of Physics at MIT, Frank Wilczek won the Nobel Prize in Physics in 2004. His 1989 book, Longing for the Harmonies, was a New York Times Notable Book of the Year. Wilczek's work has been anthologized in Best American Science Writing and The Norton Anthology of Light Verse. He lives in Cambridge, Massachusetts.