dimensions

"The concept of time as a way to measure the duration of events is not only deeply intuitive, it also plays an important role in our mathematical descriptions of physical systems. For instance, we define an object’s speed as its displacement per a given time. But some researchers theorize that...

It was almost four years ago i consulted with a physicist with a question regarding our knowledge of particles. I came to question the validity of pointlike masses, and i asked whether it was all that beneficial to even think of particle masses as being pointlike. I do remember asking whether it...

Alright, I know this board isn't for simple science questions but I trust this place to have some rather intelligent minds here. I was just waking up when a very random thought crossed my mind from a Discovery channel program I watched the other day. The problem with Pi and why it never seems...

Hi all, Long time lurker, first time poster. I have just recently finished listening to Stephen Hawkings "A Briefer History of Time" (audiobook) and I am a little confused on the last chapter, as far as Hawkings arguments for why (in string theory) there are 3 space and 1 time dimensions flat...

I don't know that much about the math involved in string/brane science, and I have at best a slippery grasp of what little I know of the ideas the math is describing. But the way this many dimensions idea is depicted, as extra spatial dimensions, puzzles me. I always assumed the extra...

I've read and heard that in order for certain theories to be true there must be more than 3 spacial dimensions (11 for String Theory, if I recall) -- but that most collapse well below our ability to measure them, and all we're left with are three. But is it possible that higher order spacial...

dimension: an independent axis or direction in space or spacetime. The familiar space around us has three dimensions (left-right, back-forth, up-down) and the familiar spacetime has four (the previous three axes plus the past-future axis). Superstring theory requires the universe to have...