Solar Impulse facing 'moment of truth' in Japan

An ambitious attempt to circumnavigate the globe in a solar-powered plane is facing a "moment of truth" after two weeks of bad weather that have left it stuck in Japan, its pilot said Tuesday.

A super cool roof solution to being hot in the city

Sydney materials scientists are claiming a breakthrough in cool roof technology with a surface they've developed that will stay cooler than the ambient air temperature, even under the mid-summer Australian sun.

New 'cool roof time machine' will accelerate cool roof deployment

Cool roofs can help keep buildings cool, thus lowering the building's energy use, while also mitigating the urban heat island effect by reflecting sunlight away from buildings and cities. But as cool roofs age and get soiled, ...

Cooling massive objects to the quantum ground state

Ground state cooling of massive mechanical objects remains a difficult task restricted by the unresolved mechanical sidebands. Now researchers have proposed an optomechanically-induced-transparency cooling scheme to achieve ...

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