22/06/2012

Bomb threat? An app for that, too

At approximately 6:30 pm on Saturday, May 1, 2010, a smoking SUV in Times Square was reported by alert street vendors. Acting quickly, NYPD evacuated vast stretches on 7th and 8th Avenues, including Broadway theatres and ...

Risks and rewards of quantifying nature's 'ecosystem services'

How much is a stream worth? Can we put a dollar value on a wetland? Some conservation proponents have moved to establish the economic value of "ecosystem services," the benefits that nature provides to people. The approach ...

Euclid and the geometry of the dark universe

Euclid, an exciting new mission to map the geometry, distribution and evolution of dark energy and dark matter has just been formally adopted by ESA as part of their Cosmic Vision 2015-2025 progamme. Named after Euclid of ...

Bandgap engineering for high-efficiency solar cell design

ZnSnP2, an absorber material for solar cells, transitions from an ordered to a disordered structure at high temperatures. Researchers from University College London and the University of Bath have proposed taking advantage ...

Sea waves as renewable resource in new energy converter design

Sea waves are a renewable and inexhaustible resource found in abundance across the planet. But efficiently converting sea wave motion into electrical energy has been challenging, in part due to the difficulty of compensating ...

Voyager 1 at the final frontier

For nearly 35 years, NASA’s Voyager 1 probe has been hurtling toward the edge of the solar system, flying through the dark void on a mission unlike anything attempted before. One day, mission controllers hope, Voyager ...

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