News tagged with oscillator

Cold winters mean more pollution

Differences in air pressure over the North Atlantic have meant that the last two winters in Gothenburg, Sweden, have been extremely cold. This has led to the air in Gothenburg being more polluted with nitrogen ...

Feb 22, 2011
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Kepler spacecraft takes pulse of distant stars

(PhysOrg.com) -- An international cadre of scientists that used data from NASA's Kepler spacecraft announced Tuesday the detection of stellar oscillations, or "starquakes," that yield new insights about the size, age and ...

Oct 26, 2010
5 / 5 (7) 4 | with audio podcast

The Polaris Cluster

(PhysOrg.com) -- A Cepheid star is one whose mass and age results in physical conditions that generate periodic oscillations in its photosphere. A Cepheid thus varies regularly in brightness, with a period ...

May 28, 2010
5 / 5 (2) 0 | with audio podcast