Newton, Maxwell, Einstein: What Were They Thinking?

How do you define time? Is it an illusion? Can a measurement made at one location influence a measurement made a million miles away, before a light signal can get there? Why doesn't the wind blow directly from a high-pressure region toward one of low pressure? Why are there pressure differences between different regions of the earth anyway? Is a vacuum nothing? What's waving when a light wave passes through a vacuum? Why doesn't the earliest sunset occur on the first day of winter? These qu...