News tagged with electromagnetic signals

At last, how many alien civilizations are there?

During the space age, 1961 was a special year: the Russian cosmonaut Yuri Gagarin became the first man to orbit Earth, while the American astronomer Frank Drake developed the now famous Drake Equation. This equation estimates ...

dateDec 03, 2012 in Astronomy
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Perfect communication with imperfect chips

One of the triumphs of the information age is the idea of error-correcting codes, which ensure that data carried by electromagnetic signals — traveling through the air, or through cables or optical fibers — can ...

dateAug 05, 2011 in Computer Sciences
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Testing the T-shirt antenna

NPL worked with BAE Systems Advanced Technology Centre, to measure the pattern and efficiency of radiation emitted from next generation wearable antennas embedded in T-shirts.

dateJun 30, 2011 in Engineering
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