how did we ever get along before google earth? you can find satellite images of almost anywhere on earth. for example, here is rockefeller center, where i am right now. here s fenway park in boston. go sox! here s the hoover dam, so cool. here s another satellite image, courtesy of google earth. check this out. can we put that side by side with the hoover dam so you can see how big that is. this is the same scale here, actually bigger, quite a bit bigger than the hoover dam. this thing is also a dam. who had the resources and engineering know how and sheer will to build something that big? chinese? russians? no, it was actually beavers, bucktoothed, flat tailed beavers beat a beaver dam twice the size of beaver dam. at the southern edge of alberta national park in canada