I remember when I was four or so years old and figuring out how maps worked I was fascinated with great circle routes and globe topology even if I didn’t quite know what topology was. At some point, I attempted to dig a hole to China but I knew that if I dug straight-down I wasn’t going to make it to Shanghai, but somewhere in the Indian Ocean.
Anyway, when I build that unstable backyard nuclear reactor out of lowest-bidder parts I’m happy to have a Google Maps mash-up that shows me where on the Earth it’s going to pop-out.
