Wolfe, Stephen S YA-02 6 MDSS/SGSI wrote: > Ed, is correct in saying Gravity is theory and now there is a branch of > Physics called gravitational physics and there are currently three different > theoretical approaches to gravity with a fourth coming online, quantum > gravitational theory. > > Again, at the risk of being redundant, I only have a masters in physics and > my area of interest was high energy plasma, so, I'm barely qualified to speak > on the subject of gravity with any authority; however, when it comes to > gravity and space-time, we are still pretty clueless as to what is going on. >
How could I argue with that? I bow to knowledge and stand corrected. > v/r > > > //SIGNED// > > Stephen S. Wolfe, YA2, DAF > 6th MDG Data Services Manager > 6th MDG Information System Security Officer > Comm (813) 827-9994 DSN 651-9994 > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ricardo Aráoz > Sent: Wednesday, May 02, 2007 10:21 PM > To: ProFox Email List > Subject: Re: [OT] George Bush Is Destroying Mars Too > > Ed Leafe wrote: >> On May 2, 2007, at 9:32 PM, Ricardo Aráoz wrote: >> >>> Actually not. "the gravitational force is proportional to the mass of >>> the objects being measured" is a FACT, an observational fact. The why >>> this happens may be a theory, but it is a FACT that a force (remember >>> 'force' is not a 'thing' but a way to express an 'interaction' that >>> makes a mass accelerate) proportional to the masses acts between them. >> Force is something that is directly measurable. Gravity is a theory >> that attempts to explain that force. The force is a fact; gravity is >> a theory that explains the observed facts very well. >> >> What's the problem? > > I'm just being anal. Force is not directly measurable, we measure mass > (though we normally measure 'weight') and we measure acceleration to > infer force, or we measure the deformation of a spring in order to > compare one force to another. > Gravity is the NAME given to an interaction between two masses. Gravity > is one of the four (?) basic interactions, one of the two weak interactions. > Gravity is not a 'theory', as 'force' is not a theory (to have a > 'proper' explanation of force you might look for Mach's laws). > But there is no problem, it's only my view on the subject, so call it > whatever you want. > >> -- Ed Leafe >> -- http://leafe.com >> -- http://dabodev.com >> >> _______________________________________________ Post Messages to: ProFox@leafe.com Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/%(messageid)s ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
