to steer a
reasonable course between the two extremes. Yet one cannot help
remembering that the secret of taking practical energy from the atom, a
secret which the human race had been trying to learn for thousands of
years, was accomplished in less than a decade from the moment when men
first determined that it was possible to split an atom. It is difficult
to forget that even after World War II some of our most respected
scientists sold short the idea of developing long-range missiles.
Impractical, they said; visionary. But 6 years after the United States
went to work seriously on missiles, an operational ICBM with a
9,000-mile range was an accomplished fact.

THE TIME FOR SPACE

All of the glowing predictions being made on behalf of space exploration
will not be here tomorrow or the next day. Yet this seems less important
than that we recognize the significance of our moment of history.

We may think of that moment as a new age--the age of space and the
atom--to follow the historic ages of stone, bronze, and iron. We may
think of it in terms of theories, of succeeding from those of Copernicus
to those of Newton and thence to Freud and now Einstein. We may think of
our time as the time of exploiting the new fourth state of matter:
plasma, or the ion. Or we may think of it in terms of revolutions, as
passing from the industrial cycle of steam through the railroad-steel
cycle, through the electricity-automobile cycle, into the burgeoning
technological revolution of today.

However we think of it, it is a dawning period and one which--in its
scope and potential--promises to dwarf much of what has gone before.
Those who have given careful thought to the matter are convinced that
while some caution is in order, the new era is not one to be approached
with timidity, inhibited imagination or too much convention. Neither is
there any point in trying to hold off the tempo of this oncoming age or,
in any other way, to evade it.

Mark Twain once listened to the complaints of an old riverboat pilot who
was having trouble making the switch from sail to steam. The old pilot
wanted no part of the newfangled steam contraptions. "Maybe so," replied
Twain, "but when it's steamboat time, you steam."[7]

Today is space time and man is going to explore it.

[Illustration: FIGURE 3.--The versatile Atlas can be used
either for launching man into space or to carry a nuclear warhead as far
as 9,000 miles.]

FOOTNOTES:

[2] Gavin,