DR. BLAINE NODDED SOMBERLY. “Yes. You say you saw Alison’s face in your perilens? And heard her voice calling for help?”
“On every cycle! That was the amazing part. Every wavelength carried her image, and her voice came through in spite of the fact that the audio was not turned on.”
“But naturally,” assented the old man. “That is the principle on which it operates. I call it the ‘omniwave.’ It is a new method of superimposing sound and light waves on receptors in such a way that they can be transmitted through any medium over a series of overlapping wavelengths ranging from 30 kilocycles down to 4,000 Angstrom units. It requires only a supersensitive iconoscope of my own devising, coupled with radiant-projectors—”
“It blanketed,” Chip told him, “every instrument on our ship. We tried to
