Quantum stopwatch stores time in a quantum memory

Physicists have developed a "quantum stopwatch"—a method that stores time (in the form of states of quantum clocks) in a quantum memory. In doing so, the method avoids the accumulation of errors that usually occurs when ...

TiVo DVR viewers bypassing 10 p.m. slots

New research indicates viewers who use digital video recorders to watch their favorite broadcast TV shows tend to watch shows recorded between 8 p.m. and 10 p.m. -- and many of them appear to be skipping 10 p.m. telecasts ...