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Two Timer

By FREDRIC BROWN


 _Here is a brace of vignettes by the Old Vignette
 Master ... short and sharp ... like a hypodermic!_


Illustrated by STONE

[Illustration]


Experiment

"The first time machine, gentlemen," Professor Johnson proudly informed
his two colleagues. "True, it is a small-scale experimental model. It
will operate only on objects weighing less than three pounds, five
ounces and for distances into the past and future of twelve minutes or
less. But it works."

The small-scale model looked like a small scale--a postage scale--except
for two dials in the part under the platform.

Professor Johnson held up a small metal cube. "Our experimental object,"
he said, "is a brass cube weighing one pound, two point three ounces.
First, I shall send it five minutes into the future."

He leaned forward and set one of the dials on the time machine. "Look at
your watches," he said.

They looked at their watches. Professor Johnson placed the cube gently
on the machine's platform. It vanished.

Five minutes later, to the second, it reappeared.

Professor Johnson picked it up. "Now five minutes into the past." He set
the other dial. Holding the cube in his hand he looked at his watch. "It
is six minutes before three o'clock. I shall now activate the
mechanism--by placing the cube on the platform--at exactly three
o'clock. Therefore, the cube should, at five minutes before three,
vanish from my hand and appear on the platform, five minutes before I
place it there."

"How can you place it there, then?" asked one of his colleagues.

"It will, as my hand approaches, vanish from the platform and appear in
my hand to be placed there. Three o'clock. Notice, please."

The cube vanished from his hand.

It appeared on the platform of the time machine.

"See? Five minutes before I shall place it there, it _is_ there!"

His other colleague frowned at the cube. "But," he said, "what if, now
that it has already appeared five minutes before you place it there, you
should change your mind about doing so and _not_ place it there at three
o'clock? Wouldn't there be a paradox of some sort involved?"

"An interesting idea," Professor Johnson said. "I had not thought of it,
and it will be interesting to try. Very well, I shall _not_ ..."

There was no paradox at all. The cube remained.

But the entire rest of the Universe, professors and all, vanished.


Sentry

He was wet and muddy and hungry and cold, and he was fifty thousand
light-years from home.

A strange blue sun gave light and the gravity, twice what he was used
to, made every movement difficult.

But in tens of thousands of years this part of war hadn't changed. The
flyboys were fine with their sleek spaceships and their fancy weapons.
When the chips are down, though, it was still the foot soldier, the
infantry, that had to take the ground and hold it, foot by bloody foot.
Like this damned planet of a star he'd never heard of until they'd
landed him there. And now it was sacred ground because the aliens were
there too. _The_ aliens, the only other intelligent race in the
Galaxy ... cruel, hideous and repulsive monsters.

[Illustration]

Contact had been made with them near the center of the Galaxy, after the
slow, difficult colonization of a dozen thousand planets; and it had
been war at sight; they'd shot without even trying to negotiate, or to
make peace.

Now, planet by bitter planet, it was being fought out.

He was wet and muddy and hungry and cold, and the day was raw with a
high wind that hurt his eyes. But the aliens were trying to infiltrate
and every sentry post was vital.

He stayed alert, gun ready. Fifty thousand light-years from home,
fighting on a strange world and wondering if he'd ever live to see home
again.

And then he saw one of them crawling toward him. He drew a bead and
fired. The alien made that strange horrible sound they all make, then
lay still.

He shuddered at the sound and sight of the alien lying there. One ought
to be able to get used to them after a while, but he'd never been able
to. Such repulsive creatures they were, with only two arms and two legs,
ghastly white skins and no scales.

                                                       --FREDRIC BROWN




Transcriber's Note:

    This etext was produced from _Galaxy Science Fiction_ February 1954.
    Extensive research did not uncover any evidence that the U.S.
    copyright on this publication was renewed. Minor spelling and
    typographical errors have been corrected without note.