Santos spoke up. "Sir, we’re going to make it."

In the same instant, Rip saw that they would land on the dark side. The

asteroid was turning over and over, and for a second he had the impression

he was looking at a turning globe of the earth, the kind used in

elementary school back home. But this gray planet was scarcely bigger than

the giant globe at the entrance of the Space Council building on Terra.

The gray metal world suddenly leaped into sharp focus and seemed to rush

toward him. It was an optical illusion. The ability of the eyes to

perceive depth sharply—the faculty known as depth perception—didn’t appear

to operate normally until the eyes were within a certain distance of an

object.

He knew he was going to hit hard. The way to keep from being hurt was to

turn the vertical energy of his arrival into motion in another direction.

As he swept down to the metal surface he started running, his legs pumping

wildly in space. He hit with a bone-jarring thud, lost his footing and

fell sideways, both hands cradling his helmet. He got to his feet

instantly and looked for Santos. A good thing his equipment was

shock-mounted, he thought. Otherwise the communicator would be knocked for

a line of galaxies.

"You all right, sir?" Santos called anxiously.

"Yes. Are you?"

"I’m fine. I think the others are over there." He pointed.

"We’ll find them," Rip said. His hip hurt like fury from smashing against

the unyielding metal, and the worst part was that he couldn’t rub it. The

blow had been strong enough to hurt through the heavy fabric and air

pressure, but his hand wasn’t strong enough to compress the suit. Just the

same, he tried.

And while he was trying, he found himself in direct sunlight!

He had forgotten to run. Standing still on the asteroid meant turning with

it, from darkness into sunlight and back again. He yelled at Santos and

legged it out of there, moving in long, gliding steps. He regained the

shadow and kept going.

The first order of business was to stop the rock from turning. Otherwise

they couldn’t live on it.

Rip knew that they had only one means of stopping the spin. That was to

use the tubes of rocket fuel left over from correcting the course. They

had three tubes left, but he didn’t know if that was enough to do the job.

Moving rapidly, he and Santos caught up to Koa and the Planeteers.

The Connie prisoners were pretty well bunched up, gliding along like a

herd of fantastic sheep. Their shepherds were Pederson, Nunez, and Dowst.

The three Planeteers had a pistol in each hand. The spares were probably

those taken from prisoners.

The Planeteers were loaded down with equipment. A few Connie prisoners

carried equipment, too.

Trudeau had the rocket launcher and the remaining rockets. Kemp had his

torch and two tanks of oxygen. Bradshaw had tied his safety line to the

squat containers of chemical fuel for the torch and was towing them behind

like strange balloons. The only trouble with that system, Rip thought, was

that Bradshaw could stop, but the containers would have a tendency to keep

going. Unless the English Planeteer were skillful, his burdens would drag

him right off his feet.

Dominico had a tube of rocket fuel under each arm. The Italian was small

and the tubes were bulky. Each was about ten feet long and two feet in

diameter. With any gravity or air resistance at all, the Italian couldn’t

have carried even one.

Rip smiled as Dominico glided along. He looked as though the tubes were

floating him over the asteroid, instead of the other way around.

Santos took the radiation detection instruments and the case with the

astrogation equipment from Koa. Rip greeted his men briefly, then took his

computing board and began figuring. He knew the men were glad he and

Santos had made it. But they kept their greetings short. A spinning

asteroid was no place for long and sentimental speeches.

He remembered the dimensions of the asteroid and its mass. He computed its

inertia, then figured out what it would take to overcome the inertia of

the spin.

The mathematics would have been simple under normal conditions, but doing

them on the run, trying to watch his step at the same time, made things a

little complicated. He had to hold the board under his arm, run alongside

Santos while the new sergeant held the case open, select the book he

wanted, open it and try to read the tables by his belt light and then

transfer the data to the board.

His ventilator had quieted down once he got into the darkness, but now it

started whining slightly again because he was sweating profusely. Finally

he figured out the thrust needed to stop the spin. Now all he had to do

was compute how much fuel it would take.

He had figures on the amount of thrust given by the kind of rocket fuel in

the tubes. He also knew how much fuel each tube contained. But the figures

were not in his head. They were on reference sheets.

He collected the data on the fly, slowing down now and then to read

something, until a yell from Santos or Koa warned that the sun line was

creeping close. When he had all data noted on the board, he started his

mathematics. He was right in the middle of a laborious equation when he

stumbled over a thorium crystal. He went headlong, shooting like a rocket

three feet above the ground. His board flew away at a tangent. His stylus

sped out of his glove like a miniature projectile, and the slide rule

clanged against his bubble.

It happened so fast neither Koa nor Santos had time to grab him. The

action had given him extra speed and he saw with horror that he was going

to crash into Trudeau. He yelled, "Frenchy! Watch out!" Then put both

hands before him to protect his helmet. His hands caught the French

Planeteer between the shoulders with a bone-jarring thud.

Rip Foster Rides the Gray Planet · 第 78 / 102 题