All we can do in "measuring" time or space intervals is to compare them -
either to each other or, by convention, to some chosen "standard". When I
say that a clock "slows down", I can only mean that it has slowed in
comparison to either another clock, or perhaps itself under other
circumstances.
Bob Sciamanda
Physics, Edinboro Univ of PA (Em)
treborsci@verizon.net
www.sciamanda.com
-----Original Message-----
From: John Denker
Sent: Friday, May 20, 2016 9:04 AM
To: Phys-L@Phys-L.org
Subject: Re: [Phys-L] another DIY relativity experiment
You can't say that one clock is ticking «faster» than
it should unless you have some a_priori standard to
compare it against, which you don't. Anything you
might compare it against behaves the same way.