from the lets-work-together dept.
MarkWhittington writes "During an interview with USA Today on the eve of the arrival of the Mars Rover Curiosity, NASA administrator Charles Bolden had some interesting thoughts on why a humans-to-Mars mission should be international and not American-led, how the world should react positively to the Chinese beating America back to the moon, and what he would do (or rather not do) if NASA were to have an 'unlimited' budget."
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"