a ray capable of penetrating walls etc. which permits the transmitter to see what is occurring at the target location
But even Roger had no inkling of the possibility of Costigan’s ‘Service Special’ phones, detectors and spy-ray—instruments of minute size and of infinitesimal power, but yet instruments which, working as they were, below the level of the ether, were effective at great distances and caused no vibrations in the ether by which their use could be detected.
His spy ray would be useless, since all patrol bases were screened thoroughly and continuously.
We have taken relays on the spy ray; one of us has been watching the ship constantly.
You can’t fool me with that talk about an all-purpose spy ray.
We should have tackled telepathics. What better spy ray would you want than the ability to look into another man’s mind?
The speeding vehicle was shielded for privacy from all but official spy-rays, and for several more minutes he would have no reason to fear those.
I want to know who planted that spy ray in my room, and why I should be warned against dealing with Myreck.
A frightening thought as Asimov handled it, because he took an adult view of it; but a Heinlein would have used the same brilliant insight to bring out the Peeping Tom in us (what did happen to the spy rays of yesteryear, by the way?).
Every word the Pope uttered was picked up by Eddorian spy rays from light-years away.
E. E. Smith 'Triplanetary'
Last modified 2020-12-16 04:08:47
In the compilation of some entries, HDSF has drawn extensively on corresponding entries in OED.