Questions

1. Explain the physics of walking.
2. Would it be possible to throw a packed parachute out of an airplane, jump out after it, grab it, and save your life?
3. What are the effects of long-term space flight on a human body?
4. How do certain animals adapt to habitats?
5. How are fossils formed? How long does it take wood to petrify? How do fossils get damaged?
6. What is a paradox?
7. What is quantum foam?