Relativity Part 2 Verifiable Predictions 525

16.1 Time dilation 526

16.1.1 Time dilation in action 526

16.1.2 Living on borrowed time? 527

16.2 E = mc2, the most famous result of all 528

16.2.1 Bringing energy into the 528 picture

16.2.2 Conservation of momentum — 529 a thought experiment with snooker balls

16.2.3 Interacting with another 531 time frame

16.2.4 Momentum from another frame 532 of reference

16.2.5 A new look at the concept 533 of mass

16.2.6 The relativistic formula for 534 momentum

16.2.7 Energy in different frames of 536 reference

16.2.8 High energy particle 537 accelerators

16.2.9 Nuclear structure 542

16.2.10 Nuclear fusion — nature's 543 way of powering the sun

16.2.11 Nuclear fission 544

16.3 The steps from symmetry to nuclear 545

energy

16.4 Working with relativity 545

16.4.1 The 'recoiling gun' revisited 545

16.4.2 Radioactive decay 547

A historical interlude: Albert Einstein 549

(1879-1955)

Appendix 16.1 Deriving the relativistic 554

formula for kinetic energy T = mc2 - m0c2

Appendix 16.2 Dimensions and units 556

of energy

Appendix 16.3 Relativistic analysis of the 558 beta decay of bismuth 210

Chapter 17 Epilogue 561

17.1 Making matter out of energy 562

17.1.1 Collisions make particles 562

17.1.2 Prediction and discovery of 563 the n meson

17.1.3 The forces between the 565 particles

17.1.4 The laws of the world of 567 fundamental particles

17.1.5 Quarks 569

17.1.6 Charm 571

17.1.7 The return of photographic 573 emulsion

17.1.8 More quarks 576

17.1.9 The innermost shell of the 577 nuclear onion

17.2 A unified theory of weak and 577

electromagnetic forces

17.2.1 The role of light as the carrier 577 of the electromagnetic force

17.2.2 Unification — the long 578 hard road

17.2.3 The heavy photon 579

17.2.4 The full circle 582

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