: The boomerang circuit by Leinster Murray Stevens Lawrence Sterne Illustrator - Science fiction; Adventure stories; Space ships Fiction; Space colonies Fiction; Spouses Fiction

@FreeBooksThu 08 Jun, 2023

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ensation ended. But both Kim and Dona felt utterly exhausted.

"It--was getting dark, too," said Dona. She trembled.

"When we tried to move," said Kim, "our arms had a tendency to move at right angles to the way we wanted them to, at all the possible right angles at once. That was the edge of the shield, Dona. Now we'll see what we've got."

"Cosmic-ray intensity went down," he reported, studying the tapes. "The dielectric constant of space changed. It just soared up. The relationship of mass to inertia. That particular gadget never recorded anything significant before, Dona. In theory it should have detected space-warps. Actually, it never amounted to anything but a quantitative measure of gravitation on a planet one landed on. But it went wild in that field! And here! Look!"

He exultantly held out a paper recording.

"Glance at that, Dona! See? A magnetometer to record the strength of the magnetic field on a new planet. It recorded the ship's own field in the absence of any other. And the ship's field dropped to zero! Do you see? Do you?"

"I'm afraid not," admitted Dona. But she smiled at the expression on Kim's face.

He grinned. He hugged her.

He set to work, beaming. It took him less than half an hour to set up a series-wound generator in the airlock, couple in a thermo-cell to the loop, so it would cool the generator as the current flowed and thereby reduce its internal resistance.

"Now!" he said. "We'll try once more. The more juice that goes through the outfit, the colder the generator will get and the less its resistance will be, and the more current it will make and the stronger the magnetic field will be."

He flipped a switch. There was a tiny humming noise. A meter-needle swayed over, and stayed.

Nothing happened. Nothing happened at all.

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