Recent content by Kingarthur

Thank you for your response. I was sort of getting at whether or not the ratio has anything to do with the shape of the earth. The world could be square, but it is not. I'm thinking that mass causes gravity, and that things fall to the core, but then stop, or possibly some things rise as vapor...

My McAfee Security Center says http://mathebook.net/ has not been tested yet.

I don't know if this is what's called basic mathematics, but I've found this site useful: http://www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebra/index.htm. I can vouch for it. It has Beginning Algebra, Intermediate Algebra, and College Algebra; and some GRE and THEA test stuff. This is...

If I dig 2 holes a little space apart, and then they intersect straight down, because of the curvature of the earth, then there is more than one up direction from the center. The closer 2 points at an equal distance down from the surface in separate holes get to the center, the less distance...

On http://en.wikipedia.org/wiki/Aurora_(astronomy ), about 1/2-way down the page, there is an image of, quote, "Aurora australis (September 11, 2005) as captured by NASA's IMAGE satellite, digitally overlaid onto the The Blue Marble composite image." Next to it, there is a rolling video of...