Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: Newton's 3rd law? was Re: inertial forces (definition)



At 17:04 10/19/99 -0700, you wrote:
At 10:15 10/19/99 -0700, Leigh wrote:
...
The idea that the reaction force is equal and opposite implicitly
entails the requirement of simultaneity, and of course we know
that simultaneity has no meaning for spatially separated events....

Leigh

I don't know that simultaneity has no meaning for
spatially seperated events.
Or am I nitpicking?

You appear to know it, since you quoted Einstein.
....
Leigh

Einstein's example concerned two objects in relative motion.
If I chose two objects fixed or moving with mirror symmetry
in my frame, I suppose I can tell when an event ocurring at each
object is simultaneous **to me** though in general it would
not be seen as simultaneous at the objects' respective
viewpoints?

Sincerely

brian whatcott <inet@intellisys.net>
Altus OK