That's what she said! Baddum-ching!
Germans say that the Earth is actually 5 mm smaller in diameter than previously thought. I want to know what kind of sig-figs they're working with when they're talking about measuring distances using radio-lag. They say they can measure distances to "the preciseness of two millimetres per 1,000 kilometres (0.07 inches per 621 miles)." I guess that's pretty precise.... But if they measured the diameter of the Earth to be 12,756.274 km using a network of 70 radio satellites, it seems like that's a lot of +/- 2mm errors to account for....
