Using very-long-baseline-interferometry (VLBI), an international team of astronomers has conducted a kinematic study of a jet of the blazar 4C+21.35. The research, presented in a paper published April 5 on the arXiv pre-print ...
The tungsten lightbulb has served well over the century or so since it was introduced, but its days are numbered now with the arrival of LED lighting, which consume a tenth of the power of incandescent bulbs and have a lifespan ...
Telecom
Sep 29, 2015
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A new instrument called ArTeMiS has been successfully installed on APEX—the Atacama Pathfinder Experiment. APEX is a 12-metre diameter telescope located high in the Atacama Desert, which operates at millimetre and submillimetre ...
Astronomy
Sep 25, 2013
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Scientists have for the first time "unmixed" the black pigment that colors our skin and gives bananas their spots.
Analytical Chemistry
Dec 19, 2019
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The Internet has become an ever more mobile beast. Through iPhones, netbooks, Kindles, BlackBerries, Skiffs and other freshly evolved hosts, its appetite for bandwidth grows by the minute.
Telecom
Jan 15, 2010
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Indian astronomers have analyzed observational data of a gamma-ray blazar known as PKS 0402-362, collected in the timespan of nearly 13 years. The study, published March 7 in the Monthly Notices of the Royal Astronomical ...
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Providing secure wireless connections and improving the efficiency of communication devices could be another application for graphene, as demonstrated by scientists at Queen Mary University of London and the Cambridge Graphene ...
Nanomaterials
Feb 19, 2014
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Wireless devices such as mobile phones rely on the radio spectrum to send and receive data. There is growing interest in using a worldwide unlicensed spectrum around 60 gigahertz for future wireless applications, but conventional ...
Telecom
Sep 19, 2011
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Astronomers have performed spectroscopic observations of a neutrino-emitting blazar known as TXS 0506+056. Results of this observational campaign, presented in a paper published November 28 on the arXiv pre-print server, ...
Using various space and ground-based observatories, astronomers have inspected flaring activity observed on a blazar known as S5 1803+78. Results of this multi-wavelength study, published April 10 on the arXiv pre-print server, ...
