News tagged with power

Just how green is wind power?

Wind power may have a positive image, but setting up offshore wind farms is complicated and energy-intensive. Because Siemens promises its customers and the authorities a high degree of transparency for the ...

dateMar 30, 2015 in Energy & Green Tech
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Solar Impulse departs Myanmar for China

Solar Impulse 2 took off from Myanmar's second biggest city of Mandalay early Monday and headed for China's Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by ...

dateMar 29, 2015 in Energy & Green Tech
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Low-vibration sawing and sanding

No matter whether it's a drill or an oscillator, handheld power tools produce powerful vibrations. But a new anti-vibration system almost entirely eliminates that uncomfortable shaking sensation you get when ...

dateMar 25, 2015 in Engineering
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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 ...

dateMar 20, 2015 in General Physics
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