Air pollution costs $2.9 trillion a year: NGO

The global cost of air pollution caused by fossil fuels is $8 billion a day, or roughly 3.3 percent of the entire world's economic output, an environmental research group said on Wednesday.

Optofluidics could improve energy applications

(PhysOrg.com) -- The ability to manipulate light and fluids on a single chip, broadly called "optofluidics," has led to such technologies as liquid-crystal displays and liquid-filled optical fibers for fast data transfer. ...

Don't panic, but the universe is slowly dying

We know that our universe has already lived through great number of exciting phases. But new research released overnight shows the universe has long passed its peak and is slowly but surely dying.

Atomic fountain clocks are becoming still more stable

They are at present the most accurate clocks in the world: Caesium fountain clocks furnish the second accurate to 15 places after the decimal point. Until they reach this accuracy, caesium fountain clocks, however, need a ...

Wind farms perform best when the sun is out

When set up in groups, wind turbines in the front rows cast a wind shadow on those behind them, lowering their performance. These effects dissipate fastest under convective conditions, say EPFL researchers in a recent publication.

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