With automated proof-checkers, a problem can be broken up into small chunks, solved bit-by-bit, then reassembled with ...

The second point of emerging consensus is that a fundamental remaking of that order has become essential. The American role in preserving the old order had become counterproductive and unsustainable, ...

Two-dimensional materials are substances with a thickness of a few nanometres or less. Electrons in these materials are free to move in the two-dimensional plane, but their restricted motion in the ...