from the hey-buds-let's-party dept.
Velcroman1 writes "The space shuttle Discovery has docked with the International Space Station for the final time at 2:15 p.m. EST, where it will make a last delivery to the orbiting space lab — before parking ultimately at a museum. With Discovery's presence, the ISS becomes a truly 'international' space station. This is the first time spacecraft from the United States, Russia, Europe and Japan have all docked simultaneously, NASA said. The station also hosts the Leonardo Multipurpose Module built by the Italian Space Agency and recently gained Dextre, the Canadian Space Agency's robotic handyman."
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"