8. What are its costs & benefits? You are here 5. How does it change? 1. What is it? 9. How do we evaluate it? 6. How does it change us? 2. Why do we use it? 7. How do we change it? 3. Where does it come from? 0. Introduction 4. How does it work? Review: What is nanotechnology? • Nanopowders and nanomaterials (pants, sunscreen) • Molecular precision (solar cells, light emitting diodes) • Nanoscale machines (none yet) • Matter compilers (read Diamond Age) • Self-replicating robots (read Prey) Why do (or will) we use Nanotechnology? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Food Shelter Communication Transportation Commerce Art Religion Health Entertainment Organization Conflict Exploration Why do (or will) we use Nanotechnology? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Food (detects when food is spoiled http://www.packworld.com/articles/Features/18256.html) Shelter (aerogel insulation now, diamond windows later – see Diamond Age) Communication (optical switching) Transportation (space elevator http://www.nanotech-now.com/Art_Gallery/LiftPort.htm) Commerce (matter compilers could create products where needed, selling only designs) Art (Maya Blue 1200 years ago) Religion (who’d have expected GPS to be used to find Mecca? http://www.primidi.com/2004/08/16.html) Health (Nanomedicine by Robert Freitas at http://www.nanomedicine.com/NMI.htm) Entertainment (display phosphors, utility fog http://discuss.foresight.org/~josh/Ufog.html) Organization (pervasive surveillance for law enforcement, contact lens HUD) Conflict (nanoscale sensors, both stationary and mobile) Exploration (lens for evanescent waves to view atomic scale, smaller space probes)