Definitions Definition and 263 Threads

Hi everybody, I just want your opinion in some questions: First of all, how do we define a physical quantity? Is it a mathematical creation that helps us describe something happening in nature? And all these formulas that we have come up with: example F=dp/dt . Are they mathematics or...

Pretty straightforward, right? I want some definitions for "abstract" and "concrete". If anyone is interested in doing some reading, here are some links: 1, 2, 3, 4, 5(PDF), http://64.233.187.104/search?q=cache:AUWz3yToePIJ:www.hcrc.ed.ac.uk/cogsci2001/pdf-files/1106.pdf . I see a connection...

a definitions for the terms "the limit does not exists" Since my textbook doesn't have a definitions for the terms "the limit does not exists" and "the limit goes to infinity", I tried to make them up. I'd like to know if they're correct. 1) Consider f: \mathcal{D}\longrightarrow \mathbb{R}...

1. A quantizied gravitational wave... 2. They travel at the speed of light 3. They have never been experimentally proven to exist. 4. They have been theoretically proven? 5. They permeate all dimensions. I have some ideas fixed in my head that need to be corrected. In another thread...

[as it says above] :devil: <=> :smile:

What is your definition of science? Have you heard good definitions of science before?...don't be shy... :shy: ... post your thoughts here

When reading advanced physics articles, I frequently find terminology that is inconsistent with basic physics definitions. For example: "pure energy". I have no idea what that expression means. I have read much about space-time, the arrow or time, etc, but no definition of "time". Where...

To avoid misunderstandings and mistakes in threads, I thought I would put together this little lot of definitions of geo-political terms. CONTINENTS A continent is a large, unbroken section of Earth's crust above sea level. It is important to specify above sea level, since some huge...

Since, we are trying to hold dialogue of some kind, here are some terms, as they are defined by one website: The term Matter: Something that occupies space and can be perceived by one or more senses; a physical body, a physical substance, or the universe as a whole. Physics...

Hello, My discrete math course has begun a section on graph theory. And I am hung up on some of the definitions. If someone is familiar with graph theory, I would appreciate it if some of these definitions could be reworded in another way. I will post the definitions we have taken so far and...

Does anybody have a list of all of the different physics definitions, such as Kinetic Energy vs. Velocity, vs. Momentum, vs. Speed or Work vs. Force etc. etc. I tend to get the definitions confused so if there is anybody who has a site or paper which points out the differences between the...

p and q are real numbers. If p < q then [p,q] = {x : p <= x <= q} or (p,q] = {x : p < x <= q} or [p,q) = {x : p <= x < q} or (p,q) = {x : p < x < q} . A single-simultaneous-connection is any single real number included in p,q ( = D = Discreteness = a localized...

I am going to try for a difficult position here. I intend to question the current definitions of the boundaries of science. Scientists [generically] may violate the scientific method constantly in that many popular assertions made by science may not ever be testable. Cosmologists seem to...