Table of contents : Contents Illustrations Acknowledgments Introduction 1. Thomas Watson. Natural Radio, Natural Theology 2. Microphonic Imagination 3. The Aeolian and Henry David Thoreau’s Sphere Music 4. The Aelectrosonic and Energetic Environments 5. Inductive Radio and Whistling Currents 6. Alvin Lucier. Brainwaves 7. Edmond Dewan and Cybernetic Hi-Fi 8. Alvin Lucier. Whistlers 9. From Brainwaves to Outer Space. John Cage and Karl Jansky 10. For More New Signals 11. Sound of the Underground. Earthquakes, Nuclear Weaponry, and Music 12. Long Sounds and Transperception 13. Pauline Oliveros. Sonosphere 14. Thomas Ashcraft. Electroreceptor 15. Black Sun, Black Rain 16. Star-Studded Cinema 17. Robert Barry. Conceptualism and Energy 18. Collaborating Objects Radiating Environments 19. Joyce Hinterding. Drawing Energy 20. Earth-in-Circuit Notes Index