@Belacqua that was a great explanation. However, the clock, criminal haircut, and sun examples all seem to be different from one another.
First, the clock gears are not actually turning simultaeously. It just seems like that in our time scale. In the physical world nothing can travel faster than the speed of light. Imagine a fantastic series of gears in outer space that is a light-year long. It would take a minimum of one year before turning the first gear would result in the furthest gear's movement.
The sun and haircut examples seem better and yet feel amiss to me somehow.
First, the clock gears are not actually turning simultaeously. It just seems like that in our time scale. In the physical world nothing can travel faster than the speed of light. Imagine a fantastic series of gears in outer space that is a light-year long. It would take a minimum of one year before turning the first gear would result in the furthest gear's movement.
The sun and haircut examples seem better and yet feel amiss to me somehow.
<insert profound quote here>