Can information out speed light? Date: Around 1993 According the
theory of relativity, nothing can surpass the speed of light,
even the flow of information. But what of events that
necessarily take place instantaneously? Ex: An object moves, and
the gravitational force instantly changes proportionately a
light-year away. I believe that Einstein resolved this
difficulty in terms of gravity's warping space - time, but I
still do not understand his explanation. And on a more basic
level, if I were to shake a move a one light- year long pole,
would not the tip move instantaneously, beating light by roughly
12 months? Or would some sort of spring action occur just to
thwart my attempt of disproving relativity? Actually, it turns
out that all forces, including gravity, the electromagnetic and
other forces, are what is called "retarded". That means that
although they look like they act at a distance, they do not act
instantaneously at a distance. In your example, the
gravitational field one light-year away would not