1. The long line of men raising their hands lies along the x-axis in Fred's space-time diagram. Do those events also lie along the x-axis in Jane's diagram? 2. The man with a bad cold lies along the y-axis in Fred's diagram. Does he also lie along the y-axis in Jane's diagram? 3. Consider the cough and the sneeze. What is the time interval between these two events according to Fred? According to Jane? 4. Consider these two events: the bird chirps the bird meets the dog What is the time interval between the events according to each observer? What is the space interval between the events according to each observer? 5. How fast is the bird flying, according to Jane? 6. (optional) How fast does the laser beam travel, according to Fred? According to Jane?