News tagged with lifetime

Fracking may affect air quality and human health

People living or working near active natural gas wells may be exposed to certain pollutants at higher levels than the Environmental Protection Agency considers safe for lifetime exposure, according to scientists ...

dateMay 13, 2015 in Environment
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Banned pollutants are still found in sparrowhawks

High levels of polluting chemicals which are used as flame retardants have been detected in the livers of sparrowhawks in the UK. So-called PBDEs (Polybrominated Diphenyl Ethers) are a group of 209 closely ...

dateApr 26, 2013 in Ecology
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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 ...

dateDec 03, 2012 in Astronomy
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Maths tells when to be more alert on the roads

Technicians from Madrid City Council and a team of Pole and Spanish researchers have analysed the density and intensity of traffic on Madrid's M30 motorway (Spain) throughout the day. By applying mathematical ...

dateJun 22, 2012 in Mathematics
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