13. Keeping It Up

Chapters in this book

1. Frontmatter i
2. Contents v
3. Preface ix
4. 1. Levity vs. Gravity 1
5. 2. Gravitational and Magnetic Forces 19
6. 3. Maglev–A Balance of Forces 33
7. 4. Spinning the Levitron 48
8. 5. Inducing Uplift 64
9. 6. Flying Frogs 83
10. 7. Super-Levitation 101
11. 8. Feeding Back 120
12. 9. In a Spin 143
13. 10. The No-Spin Zone 167
14. 11. Flying Trains 188
15. 12. All Aboard! 210
16. 13. Keeping It Up 231
17. Sources and Suggested Readings 249
18. Acknowledgments 259
19. Index 263