News tagged with concentration

Thermodiffusion in weightlessness

Thermodiffusion, also called the Soret effect, is a mechanism by which an imposed temperature difference establishes a concentration difference within a mixture. Two studies by Belgian scientists from the Free University ...

dateOct 27, 2014 in General Physics
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Measuring phosphorus loss from Midwest crop fields

Field runoff from farms in the Lake Erie basin is often rich in soluble plant nutrients, including phosphorus. When this nutrient-rich runoff reaches the lake, the phosphorus can support abundant algal blooms that contaminate ...

dateJan 29, 2015 in Environment
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Portable frequency comb rolls out of the lab

A PML team is hitting the road with a fine-tooth comb. Scientists in the Quantum Electronics and Photonics Division have devised a portable optical frequency comb that is capable of laboratory-grade measurements but can be ...

dateMar 21, 2014 in General Physics
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