5 Example Questions votes newest recent 4How Things Work: How does an electric car work? 21How Things Work: How does an LED work? 0Philosophy: Philosophy 101 readings…I don't want to spend money on a philosophy class. What should I read to educate myself on the subject? 2Personal Productivity: What are some anti-GTD behaviors to avoid? 1Personal Productivity: How granular should your items be on your GTD list?