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Some Experiments at Radio Frequencies on Supraconductors - Nature
Nature· 1 day agoMEASUREMENTS were made on an extruded tin wire carrying an alternating current of a frequency of about 200 kilocycles per second superposed upon a direct current. The resulting ...
The Band Spectrum of Mercury excited by a High Frequency Discharge - Nature
Nature· 1 day agoA METHOD of exciting spectra by a high frequency discharge has been described by Wood and Loomis (NATURE, 120, 510; 1927), Clarke (NATTJUE, 120, 727; 1927), and others. The ...
An Effect of Catastrophic Ionospheric Disturbances on Low-Frequency Radio Waves - Nature
Nature· 1 day agoRECENTLY there has been much interest in those catastrophic ionospheric disturbances which are supposed to produce ‘radio fade-outs’ on highfrequency radio waves and short-lived disturbances ...
Production of High-Frequency Energy by Ionized Gases - Nature
Nature· 1 day agoSince the publication in this journal1 of a note by P. C. Thonemann and R. B. King, entitled “Production of High-Frequency Energy by Ionized Gases”, a large number of experiments ...
Force Constants and Molecular Structure - Nature
Nature· 1 day agoIN previous papers1 we have described measurements on the ultra-violet absorption spectrum of carbon suboxide, and have attempted to calculate the force constants of the linkages in this molecule ...
Frequency Change in Scattered Light - Nature
Nature· 1 day agoWORK has been carried out in this laboratory on the frequency change in scattered light (Raman effect), using a plane polarised beam. The preliminary results seem sufficiently ...
Reversal of Mating Preference by Crossing Strains of Drosophila melanogaster - Nature
Nature· 1 day agoSEXUAL selection may be an important component of the selection pressures determining changes of gene frequency in Mendelian populations, and a number of studies of Drosophila ...
The Decennial Period of Magnetic Variations, and of Sun-Spot Frequency - Nature
Nature· 1 day agoA CENTURY and half ago Graham discovered that the north end of a magnetic needle moved from morning till afternoon towards the west, returning thereafter to its most easterly position in the ...
N—C=O Bending Vibration in Complexes of Dimethylformamide with Metal Halides - Nature
Nature· 1 day agoSHIFTS to lower frequencies of the C=O stretching vibration on complex formation between metals and ligands containing the carbonyl group have been the subject of several investigations, following ...
Ionospheric Observation of VLF Electrostatic Noise related to Harmonics of the Proton Gyrofrequency...
Nature· 1 day agoBANDS of very-low-frequency (VLF) electrostatic noise related to harmonics of the proton gyrofrequency have been observed in the ionosphere with the Javelin 8.46 sounding ...
