Physicists plan search for the known unknowns


Gravity feels like a force you can trust. Every day, unwavering, it keeps your feet planted firmly on the ground. But for many physicists, gravity is unsettling. It's the one force that doesn't fit into their quantum picture of the world. The best theory to describe it — Einstein's general theory of relativ-ity — doesn't mesh with quantum mechanics. What's… (More)
DOI: 10.1038/445468b


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