Word: ands
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Dates: during 1990-1999
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Quantum physics demolishes the conventional concept of time in its own peculiar ways. Measured at short enough durations, space-time loses its apparently smooth, continuous structure, devolving into what Princeton physicist John Wheeler calls "quantum foam." The orderly flow of events may really be as much an illusion as the...
It gets even worse. In some versions of M theory--the latest rage in physics, which attempts to meld relativity and quantum theory--there may be more than three dimensions of space and more than one dimension of time. What does that mean? Even the experts have no clue. "We...
Does that mean you could go back, kill your own grandfather and keep yourself from being born--a seeming absurdity? Maybe not, say some physicists. In one interpretation of quantum physics, the world splits at each moment into an infinite number of universes that proceed in parallel; if you killed...
For physicists, then, time is an exceedingly complex and slippery concept. No wonder St. Augustine couldn't explain it. But when the month, the year, the century and the millennium end next week, it's a fair bet that theoretical physicists, like the rest of us, will be partying to...
--Reported by Mairi Brahim/London and Dick Thompson/Washington