Uh, Jerse, you're just as wrong about that China thing as the original poster. If you dig straight down from Kansas you go through the center of the planet and end up in the SOUTHERN hemisphere much closer to Australia. I'm not sure where Kansas maps to without an atlas but I think San Diego goes "straight through" to Perth, Australia (which is why it's one of our sister cities I think.) No one can dig "straight down" and end up in China if they start in the Northern Hemisphere.