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Detection of solar particle streams by high-frequency radio waves: Lusignan, B. B., Radioscience Laboratory, Stanford University, Journal of Geophysical Research, 68, 20, October 15, 1963, 16 pagesDetection of solar particle streams by high-frequency radio waves: Lusignan, B. B., Radioscien...
Fast radio bursts (FRBs) are extragalactic transient flashes of radio waves with typical durations of milliseconds. FRBs have been shown, however, to present a wide range of timescales: some show sub-microsecond sub-bursts while others last up to a few seconds. Probing FRBs on a range of...
Previously, radio astronomers studying pairs of neutron stars, the crushed, spinning remains of massive stars, had revealed compellingindirectevidence of gravitational waves. Einstein’s general theory of relativity says that gravitational waves should carry away orbital energy, and indeed, these ...
Image made by Caltech and NASA shows the UV/IR/Radio discovery of neutron star merger in NGC 4993. Scientists announced Monday that they have for the first time detected the ripples in space and time known as gravitational waves as well as light from a spectacular collision of two neutron ...
Emit radio jamming, forcing the drone to land directly.Visual settings control area:Through the visual operation method, directly plot the UAV protected area.Multi-target discovery, direction finding and positioning:It can find the directions of multiple UAVs and display the ...
VLF radio wavesElectrophonic soundsThe results of day-time detection of GEMINID 2007 meteor shower from dynamic VLF radiation spectra in Tripura (23.50°N, 91.25°E), India, is presented here. The field experiments were performed during 12–17th December, 2007 inside Tripura University campus ...
However, the longer wavelength (typically centimetre-level) of radio waves makes it harder to confine the signal, leading to a lack of spatial information, and requiring a larger antenna to improve gain and directionality. The larger beam size of radar systems, compared to LiDAR, increases their...
United States Patent US2423023 Note: If you have problems viewing the PDF, please make sure you have the latest version ofAdobe Acrobat. Back to full text