Chapter 2 discussion topics 1. Describe scientific methods, particularly in the application of critical thinking and creative thinking to the scientific enterprise. 2. What is the role of models in the scientific experience? 3. What are the effects of delays, leverage, and synergism in complex systems? 4. Evaluate the positive and negative contributions of nuclear technologies: nuclear weapons in World War II and the Cold War; radioisotopes in research and medical technology; and nuclear power plants. 5. How much are you willing to pay in the short run to receive economic and environmental benefits in the long run? Explore costs and payback times of energy efficient appliances, energy saving light bulbs, and weather stripping. 6. Is convenience more important than sustainability? Explore the influence of the U.S. frontier origins on the throwaway mentality.