She waited but nothing happened. The robot, whose senses were far finer than her own, remained frozen and baffled. Impatiently she restated the problem, rephrased it so that it could reach every part of the circuit almost instantly. Where it was complex she simplified, reducing it at last to an order the robot could act on. It began to work, slowly at first.
It copied exactly a circuit she had made previously. After she approved it started another, like the first but much smaller, attaching it in series. Satisfied it was obeying instructions, she left it. It would continue to make those circuits, each one progressively smaller, the final one delicate enough to contact the gravity computer.
Meanwhile there was her own work. It wouldn't suffice that the geepees be linked with the gravity computer. They would then see what she had discovered long ago—but it was people who had to be shown. Their eyes were even less sensitive than hers.
Fortunately this was the easiest part. She went to the screen and began to alter it. It could be made to scan what the gravity computer passed on to the geepee heads. A row of dominos, each of which would topple if the first were struck, and the screen was the last of the series.
"Hello," said a voice. "So this is where you always are. What a dreary place to work."
She didn't hear the voice. She felt the footsteps and the air brushing against her skin. She turned around, letting her hands continue, deft and sure. She didn't need to see what she was doing. The smile was involuntary.
He leaned against the wall, watching her. It was embarrassing the way she gazed back. He wished she could say something but then he'd always wished it. He'd had a thesis once, hadn't he? that for mechanics deafness wasn't a handicap considering how noisy machines were. A deaf person could withstand a concentration of sound the average man would find intolerable. And there was no need for such a person to talk since there was no one who could hear.
The connections in her hands grew swiftly. She felt that she could work better while he was near. Why was this?
"What do you respond to?" he said gruffly. "Diagrams, blue-prints? If so I'll have to learn to draw the damnedest things." He laughed uncertainly. "Come on, help me a little bit. I've got some ideas that might help you break out of your shell if you'd try to respond."
He fixed things too, warm soft mechanisms. She didn't know but she thought it was a higher skill than hers. He was not as adept as she was, though he could learn to be. There was so much more he could do if he would realize. His mouth was a handicap. He moved it often when he should be thinking.