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Updated: June 13, 2025
The titanium prefab-huts, set up to house the laborers and intended to be taken north with them for their stay on the polar desert, were simply wiped away. Among the wreckage, resistance was being blown out like the lights of a candelabrum. He took up the hand-phone and called HQ. "Von Schlichten; what's the wavelength of the officer in command at the equipment-park?"
As they are gradually separated the narrow vertical fringes become less and less distinct, and finally vanish completely. Measure the distance between the holes and divide this by the wavelength of light, which we may call 1/50000 of an inch. The result is the angular width of the distant slit. Knowing the distance of the slit, we can at once calculate its linear width.
We're trying to get a glimpse of her against the sky," a voice came in. "We're cutting in our forward TV-pick-up." The voice repeated, several times, the wavelength, and somebody got an auxiliary screen tuned in. There was nothing visible in it but the darkness of the valley, the star-jeweled sky, and the loom of the East Konk Mountains.
FLIR technology has allowed the U.S. to "own the night," as was handily displayed in Operation Desert Storm. Some of the significant technology advancements underway in this area include multiple wavelength sensors, very large focal planes, and the increasing performance of uncooled sensors.
The shortest waves of the visible spectrum are those of the extreme violet; the longest, those of the extreme red; while the other colours are of intermediate pitch or wavelength. The length of a wave of the extreme red is such, that it would require 39,000 such waves, placed end to end, to cover one inch, while 64,631 of the extreme violet waves would be required to span the same distance.
To observe any object in the sense world we need an appropriate medium of observation. For ordinary things, light provides this. In the sense in which light is understood to-day, this is possible because the spatial extension of the single light impulses, their so-called wavelength, is immeasurably smaller than the average magnitude of all microscopically visible objects.
"I remember our excitement when we first contacted a station outside Russia. It was a station in Saarbrueken and we were on a wavelength of 42 metres. All the members of the Club sent him our SWL reports and he sent us back his cards and a photograph of his equipment which was published in the Moscow amateur journal and so Odessa became famous.
It is practically a beam radio set, projecting a beam of a wavelength that alone would tend to produce invisibility. But in this case it will make me visible. I'm going to stand right here, and Bob can operate that set." Arcot strode to the middle of the room, and then Morey turned the reflector of the beam set on him.
He moved his pistol and some other impedimenta off the table and set Little Fuzzy and Mamma Fuzzy and Baby upon it, then drew up a chair beside it, in range of the communication screen, and sat down with Mike and Mitzi and Ko-Ko. Rainsford punched out a wavelength combination. Then he picked up Baby Fuzzy and set him on his head.
At least ten million credits are going to be picked up by an armored truck and taken to branch banks for distribution. "Hollis, here, happens to have found out the wave-patterns of the roboguards who'll be protecting the currency shipment. And Al Webber has some equipment that can paralyze roboguards if we know their operational wavelength.
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