a communication system that transmits messages faster than the speed of light; (also) a wave phenomenon used by such devices
Then I saw the deadly little ultra-wave projector in Satsuma’s yellow hand, an ominous bluish glow flickering about the point of the the tube…. ‘You don’t dare use that!’ I shot at him. A pencil of blue hissed at me, for answer. A hot needle of pain seared across my shoulder; smoke of burned flesh and fabric burst from me. I still wear the mark of Satsuma’s ray.]
The Captain gasped—his ultra-wave observer and sometime clerk was Lyman Cleveland himself, probably the greatest living expert in beam transmission!
The radio signals came through on the ultrawave every so often, but the pep-talk description of the thrilling contest for endurance racing didn’t mean much when I put it up against the facts.
The news that the Terminus City ultrawave set received two hours ago.
Use the ultrawave sets there to contact other portions of the planet.
Kerrel’s face appeared on the small screen. There was no need now for the ultra-wave and the ordinary visiphone unit had been cut in.
If I were to send orders by ultrawave to my Three Ghosts agent, he'd have to wait three hundred and twenty-four years to get them.
To the east is the laboratory where the tachyon-beam ultrawave communications equipment is being fabricated—a small pink dome which usually contains ten or a dozen technicians, patiently assembling the devices with which Krug hopes to send messages to the stars.
That, coupled with what he would make off the Largess expedition, ought to provide enough to refinish the entire screen. Plus getting an ultrawave booster for Ben, the Umbra’s comm operator.
Jefri thinks it may be possible to use the ship’s ultrawave to call for help from others like his parents.
I sent Boomerang messages on Ultrawave—to find out if anything’s left of the Milky Way after the Xion attack.
Doc Smith, "Triplanetary"
Last modified 2021-02-23 21:27:48
In the compilation of some entries, HDSF has drawn extensively on corresponding entries in OED.