Scientists have demonstrated time reversal in a quantum computer, returning three qubits (the basic unit of quantum information) to their state a fraction of a second earlier. In physics, systems ...

NEW YORK (CBS.MW) -- Computer hardware stocks reversed course Tuesday, with investors cheering up thanks to EMC Corp.'s strong earnings report and anticipation of Compaq Computer's quarterly results.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A new technique for quantum computing could bust open our whole model of how time moves in the ...