Ben Bova - Crazy Ideas

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Crazy Ideas [Editorial]Crazy Ideas [Editorial] Ben Bova ========== During the
height of the American involvement in Vietnam, when President Lyndon Johnson
had sent half a million American troops to South Vietnam and enough bombs
were being dropped to make that whole nation resemble the bottom of a
shake-and-bake bag, Senator Barry Goldwater reminded an audience of his
ill-fated 1964 campaign. “Remember me?” he asked his listeners. “I’m the nut
who wanted to send the Army into Southeast Asia and bomb Hanoi.” Ideas that
are first considered eccentric, unacceptable, or even crazy have a way of
becoming commonplace, sooner or later. One of the causes of Future Shock is
that nowadays, the crazy ideas become Standard Operating Procedure sooner,
rather than later. Back when I was a lad (a sure sign of advancing, age, that
phrase) nothing was crazier than wanting to fly to the MOON. Well, maybe
there were a few things crazier than that: atomic power, death rays,
artificial hearts, thinking machines, airplanes that could fly as fast as
four hundred miles per hour. Now they’re all as normal and as American as
pizza pie. Science fiction, abounds with crazy ideas. Not too long ago, in
Analog, Wade Curtis suggested that coastal cities could have plenty of fresh
water practically free, if they would just arrange to have an iceberg towed
to their shorelines. The average iceberg represents enough fresh water to
last a fair-sized city for months. Crazy idea. But the US Army’s Cold Regions
Research and Engineering Laboratory, in New Hampshire, in harness with the US
Geological Survey’s Ic£ Dynamics Project at the University of Puget Sound,
Washington, has produced a report that shows maybe it isn’t so crazy after
all. The two authors of the study are Wilford F. Weeks, Army, and William J.
Campbell, USGS. They concluded that a ship with approximately two-thirds the
propulsive power of the carrier Enterprise could tow from Antarctica to
Australia or southern South America an iceberg thai would be big enough to
irrigate six thousand square miles of land. Such an iceberg would be worth
more than one billion dollars. The cost of water from a large, modern
desalination plant is estimated to be about 19 cents per cubic meter (264.2
gallons). The price of fresh water from the melting iceberg would be 0.8
cents, they calculated. Crazy idea. And, of course, it is only in
science-fiction stories that you find spacecraft that go faster than light,
that utilize crazy things like space warps to get around the light-speed
barrier. It’s also the science-fiction “nuts” who talk about alternate
universes and other dimensions of space/time as if they really
existed. ========== Well now… astrophysicists have gone ga-ga over black
holes, the potholes in space left when very massive stars or whole galaxies
collapse. Theorists have speculated that the collapsing star might actually
dig a “wormhole” through space/time and emerge else-where/elsewhen in the
universe as a white hole—and perhaps that’s what the quasars are. Sounds
suspiciously like a space warp to me! Those wormhole tunnels might be just
the thing for starships to use as shortcuts from one part of the universe to
another. And, in fact, we’ve already had science-fiction stories in which
“collapsar” space warps are purposely made by human scientists and engineers,
who can’t poke around looking for natural wormholes when they’re in a hurry
to take a shortcut to Betelgeuse. And the theoretiker physicists are also
muttering to each other, not about the possibility of alternate universes,
but about the absolute necessity of postulating them, in order to save the
foundations of physical theory! Seems that the uncertainty principles of
modern physics lead to an unpleasant paradox. Theoretical considerations tell
us that for any given decision-point in the universe—say, whether or not
you’ll blink your eyes before you finish this phrase—there’s a fifty-fifty
chance for the decision to go either way. Yet in our real world, you either
go a hundred percent one way or a hundred percent the other. You either blink
your eyes or you don’t. There must be, the theoreticians conclude, a universe
in which the other decision holds true. For every decision-point in this
universe, there is an alternate universe in which the decision went the other
way. There must be googols of universes! Some exactly like ours, right up
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分类:外语学习 价格:5.9玖币 属性:4 页 大小:69.56KB 格式:PDF 时间:2024-11-25

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