Wilson licked his lips, dredged a cigarette out of a pocket.
"If you don't mind,” he said, “I'll hit for Frisco tonight. This tooth of mine is getting worse."
"Sure, can't keep an aching tooth,” agreed Russ, thinking of the wrench while talking.
"Can I take your ship?” asked Wilson.
"Sure,” said Russ.
Back in the laboratory they rebuilt the field, dropped little ball bearings in it. The ball bearings disappeared. They found them everywhere-in the walls, in tables, in the floor. Some, still existing in their new time-dimension, hung in mid-air, invisible, intangible, but there.
Hours followed hours, with the sheet of data growing. Math machines whirred and chuckled and clicked. Wilson departed for San Francisco with his aching tooth. The other two worked on. By dawn they knew what they were doing out of the chaos of happenstance they were finding rules of order, certain formulas of behavior, equations of force.
The next day they tried heavier, more complicated things and learned still more.
A radiogram, phoned from the nearest spaceport, forty miles distant, informed them that Wilson would not be back for a few days. His tooth was worse than he had thought, required an operation and treatment of the jaw.
"Hell,” said Russ, “just when he could be so much help."