Word: handing
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Dates: during 2000-2000
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...more money than Microsoft--but which are likely to have gaudy earnings in the future. That's why technology, Internet and biotech stocks--the new economy--have been soaring the past few months. But that's also why last week, when investors felt that expectations had got out of hand in the face of higher interest rates, the new-economy stocks sold off heavily, Cisco among them...
...cosmic itinerary. Scientists at NASA and in the private sector have been quietly scribbling out flight plans and sketching out vehicles that--so they say--could make manned landings on the Red Planet not only possible but also economically practical. The hardware, they believe, is largely in hand. The funds, they argue, could be within reach. "Within 25 years," says NASA's Bret Drake, director of mission studies at the Johnson Space Center in Houston, "I project that we could have human exploration of Mars being conducted routinely...
...ignores certain basic realities. It assumes, for instance, that organisms are little more than agglomerations of special-purpose mechanisms, each of which can be tracked independently of the "packages" of which they form part. We speak of the "evolution of upright walking" or the "evolution of the hand," often without realizing that legs and hands can only be parts of the story...
...20th century was quite a time for physicists. By the mid-1970s we had in hand the so-called standard model, a theory that accurately describes all the forces and particles we observe in our laboratories and provides a basis for understanding virtually everything else in physical science...
Some argue conservatively that time travelers don't change the past; they were always part of it. On the other hand, paradoxical though this sounds, a version of the many-worlds theory of quantum mechanics (see "Will We Discover Another Universe?" in this issue) devised by Oxford physicist David Deutsch might allow such history-changing visits. In this picture, there are many interlacing world histories, so that if you went back in time and killed your grandmother when she was a young girl, this would simply cause space-time to branch off into a new parallel universe that doesn...