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Suppose that one of them performs 101 vibrations in the time required by the other to perform 100, and suppose that at starting the condensations and rarefactions of both forks coincide. At the 101st vibration of the quicker fork they will again coincide, that fork at this point having gained one whole vibration, or one whole wavelength, upon the other.
A daring robbery had been attempted, but police detection methods had yielded advance warning, and the robbers had been frustrated. The roboguards had been specially equipped ones which could shift to an alternate wavelength in case of emergency; they had blanked out only momentarily. And special guards had been posted within the bank, ready to charge out.
He picked up the phone and punched the wavelength of the military airport. "Von Schlichten; my compliments to Colonel Jarman. Tell him there's a geek mob, or possibly Firkked's regulars, on the main highway from Skilk, two miles east of the Reservation. Get some combat contragravity over here, at once. We'll light them up for you.
One day he told us that he had attended a Joint Services Committee which had been set up to study the requirements for building a broadcasting station in Athens. When the question of wavelength for the proposed station was considered somebody said a wavelength of 2,000 metres might be appropriate. One of the military officers, who shall be nameless, remarked angrily "What! 2,000 metres.
If both series start at the same moment, one of them being, at starting, a whole wavelength in advance of the other, they also add themselves together, and we have an augmented luminous effect. The same occurs when the one system of waves is any even number of semi-undulations in advance of the other.
By some elegant mathematics he had shown the probable existence of electromagnetic waves of radiation. He generated and detected electromagnetic waves across the length of his laboratory on a wavelength of approximately one metre. His own photograph of the equipment he had set up can be seen in the Deutsches Museum in Munich.
The same remark applies to the line joining the opposite blunt angles of a crystal of Iceland spar. The arrangement of the molecules round this line being symmetrical, the condition of the ether depending upon these molecules shares their symmetry; and there is, therefore, no reason why the wavelength should alter with the alteration of the azimuth round this line.
Let us fix our attention upon the particular oblique line that passes through the centre O of the slit to the retina at R'. The difference of path between the waves which pass along this line and those from the two margins is, in the case here supposed, half a wavelength. Make e R' equal to P R', join P and e, and draw O d parallel to P e.
"Several million stars," replied Evans in a lower voice. "And " His tone became suddenly severe. "Assistant Murphy, remember your manners when addressing your superior officer. I've a mind to report you." A flaming head of hair topping a grinning face poked around the edge of the door. "Lower your wavelength, lower your wavelength! You may think you're a sun, but you're just a planetoid.
"With us the question of hearing is merely the question of wavelengths in the air," he replied; "the lowest audible sound having a wavelength of sixteen feet, the highest less than an inch. Some people can't hear the squeak of a bat, others the rumble of an earthquake. I merely affirm that in every form sleeps the creative sound that is its life and being.
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