Fine-particulate pollution: can we trust microsensor readings?

Last May, Paris City Hall launched "Pollutrack", a fleet of micro-sensors placed on the roofs of vehicles traveling throughout the capital to measure the level of fine particles present in the air in real time. A year early, ...

Cilia: 'The bouncer' of bacteria

Imagine a club sceneā€”a bouncer at a velvet rope selects which individuals get into the club. This, explains Eva Kanso, a professor of mechanical engineering at USC Viterbi School of Engineering, is what cilia do in an organism. ...

Massive particles test standard quantum theory

In quantum mechanics particles can behave as waves and take many paths through an experiment. It requires only combinations of pairs of paths, rather than three or more, to determine the probability for a particle to arrive ...

Calculating 'old' and 'new' water runoff

Just ahead of a rainstorm, Cody Ross might run out to an agricultural research site as part of his graduate work. He'll need to get some dye into an injection well. The point? To evaluate the path that water follows from ...

Organic films from atmospheric aerosol and sea water

Tiny particles in the air known as aerosols play an important role in cloud formation, which in turn has an impact on our planet's climate. However to date the effect of aerosols on cloud formation remains full of uncertainties. ...

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