Thanks for posting that. I forwarded the Assis quote to another group. Harry ----- Original Message ----- From: "Taylor J. Smith" <tj...@centurytel.net> Date: Monday, June 8, 2009 5:05 pm Subject: [Vo]:Time Dilation and relativity. Was Relativistic magnetic fields and time
> > Stephen A. Lawrence wrote: > > ... time dilation isn't really just a simple number. > > Hi All, 6-8-09 > > Here are some thoughts on time dilation. > > Jack Smith > > ----------- > > Quoting from "Relational Mechanics" by Andre K. T. Assis, 1999 > (This book can be purchased at Amazon.com.) > > p. 132 > > "It is usually stated that this dilation of the proper > time of a body in motion has been proven by experiments > in which unstable mesons are accelerated and move at > high velocities in particle accelerators. > > In these experiments it is observed that the half-lives > ... of these accelerated mesons are greater than the > half-lives of mesons at rest in the laboratory. > > But this is not the only interpretation of these > experiments. It can be equally argued that these > experiments only show that the half-lives of the > unstable mesons depend on their accelerations ... > > An analogy ... Suppose two identical pendulum clocks > at rest on the earth, marking the same time at sea level > and running at the same pace, We then carry one > of them to a high mountain, keep it there for several > hours, and bring it back to sea level at the location of > the other clock. > > Comparing the two clocks it is observed that the clock > which was carried to the top of the mountain is delayed > relative to the one which stayed all the time at sea > level. This is the observational fact. > > It can be interpreted saying that time ran more slowly > for the clock at the top of the mountain. Or it can be > interpreted by saying that time ran equally to both clocks, > but that the period of oscillation ... depends on the > gravitational field of the earth ... As the gravitational > field is weaker at the top of the mountain than at sea level, > the clock which stayed on the mountain is delayed as > compared with the one at sea level ..." > > -------------------
