Recent content by JOPearcy

Jeff Reid, The dimension of mass is a dimension. It is not a direction. We are agreed that dimension in this reference has no magnitude. A quantity of mass can be measured relative to a defined unit quantity of mass. Both the quantity of mass being measured and the defined unit quantity of...

K.J.Healey, I would say yes, you are correct, relatively. I would accept that as a starting point. So we are looking at a one dimensional length. What is the parameter? Is the parameter the dimension of length? What does parameter mean in relation to this one dimensional length? Could...

Mind boggling. Matt Grime, No I am not talking about Minkowski spacetime which is the mathematical setting in which Einstein's theory of special relativity is most conveniently formulated. I thought I made that very clear. The point is to seek a simple common ground, so that one can not...

Physics Help and Math Help - Physics Forums > Mathematics > General Math So general math as it applies to mathematics as it applies to physics forums under the category of physics help and math help has nothing to do with dimensions or the meaning of dimension? Given we are talking about...

Math is above language? Hmm, so you can define math without the use of language. Well, I don’t want to begin straying from the point. K.J.Healey, Given we are talking about one dimensional length in real physical space, one of three accepted dimensions of length for real physical space...

Mathwonk, As a mathematician, have you not gone through a process of defining concepts in this manner? Again, trying to keep things very simple, it is very common in math to graph a function, “y = f(x)”. You graph this in 2 dimensions, one dimension being related to the x-axis and the...

K.J.Healey, Good comments. I like your imaginative example about a point particle in space. Mathwonk, I do think you also make some good points, but, I want to focus on one narrow and simply example, to keep things focused and hopefully easier to understand for all of us. Kind of like...

K.J.Healey and Jeff Reid, Both of you give good responses. Can we agree the following is true? “Three-dimensional space is the physical universe we live in. The three dimensions are commonly called length, width, and breadth; although any three mutually perpendicular directions can serve...

Jeff Reid, I understand what you are saying, but disagree with some of it. My problem has been my inability to simply explain what I am talking about in a way that is understood. My failure to do this leads me to try a different tack. That is what I am now trying to do. First I want to...

Belliott4488, A "system of dimensions" is something which you view, work with, model, observe and so on which contains a particular defined set of dimensions. I do understand that the dimensions from which the dimension of velocity is derived are not normally spoken about as a system of...

Cristo, Can you cite your definition? What I’d really like to do is to work towards an understanding of what I am talking about, I want to simplify the topic towards space. Can you define space?

Belliott4488, I want to apologize again for being so snappy. You might figure out by now that I had some posts on another forum whose tone angered me. I want to discuss this politely and rationally. Velocity is a dimension. It is a derived dimension, but it is still a dimension. The...

Belliot4488, If you are not following me from this other forum them I apologize for being overtly defensive. I have had a discussion on another forum where a group of posters clearly did not understand what I was saying, incorrectly stated I was wrong over something I know I was correct about...

Belliot4488, From the tone of your reply, are you following me from another forum just to continue making statements of how wrong I am so I can continue to make statements of how wrong your are? Your comment “I think you are still confusing the issue by mixing the two uses of the word...

matt grime, I agree that there are many definitions of dimensions, I believe there is one definition for dimension as it is used in science, math, physics, engineering and so on which is used for the process of defining any particular dimension or system of dimensions. What does the...