Recent content by lightfire

I know this is technically not orthodox GR, but it is closely related. I was reading about Kaluza-Klein theory, but I don't completely understand it. Under what circumstances would could a gravitational field induce an electromagnetic field under this theory. Also, how is the Ricci tensor different?

I'm technically talking about a "weighted" adjacency matrix that can be used to represent distances. I have figured out the problem for Euclidean space in two and three dimensions using the distance formula comparisons, as you suggested. \[d_{12}^{2}=(y_{1}-y{2})^2 + (x_{1}-x_{2})^2\]...

A coordinate matrix is just a set of coordinates of N vertices or nodes. So the points (1,2), (3,4), (5,6) are stored as: \begin{pmatrix} 1 & 2\\ 3 & 4\\ 5 & 6 \end{pmatrix} It's adjacency matrix is roughly: \begin{pmatrix} 0 & 2.82 & 5.66\\ 2.82 & 0 & 2.82\\ 5.66 & 2.82 & 0 \end{pmatrix}...

I've come up with a curious two-part question while working on a map program: What is the minimum number of points necessary in order to transform an NxN adjacency matrix into a coordinate matrix in terms of N given Euclidean space? As this question relates to map-making, where I don't...

A rock with mass m = 3.10 kg is suspended from the roof of an elevator by a light cord. The rock is totally immersed in a bucket of water that sits on the floor of the elevator, but the rock doesn't touch the bottom or sides of the bucket. Here is the part that I am stuck on: Derive an...

HaHa Yeah, I saw that on the web awhile ago and I was startled at first, but quickly realized that it was just a calculator thing and the claim . I was just hoping that a few "wows" would post or something. But I guess only alert people posted. I forget what the site is, but it has a whole...

Are those constants irrational and transcendental! That would be the major question. Since any rational number raised to a power OTHER THAN ZERO cannot be 1, than it is just a case of running out of decimal places. But a transcendental number raised to a transcendental exponent could...

I've got MATLAB set to several(about 20) decimal places and I noticed something. G^(E0M0)=1 seemingly exactly. That is the gravitational constant G raised to the quantity of the permittivity constant multiplied by the constant of permeability. That is approximately...