solar

China, constantly straddling the line between super-polluter and clean tech pioneer, has unveiled what for the time being is the world’s largest solar-powered office building . The fan-like roof of the 800,000 square-foot facility located in Dezhou in Shangdong Province was cleverly designed to resemble an ancient sun dial, though rather than ticking off the passing hours, the building houses exhibition centers, research facilities, meeting and convention spaces and a hotel, all of which are powered by the hundreds of solar panels adorning its roof.

Plenty of cars can look cool and run green these days, but now designers are taking such concepts to extremes. The BMW Lovos has 260 exterior flaps that can collect solar power and act as airbrakes at the same time.

When most people think of successful space missions, names like ‘Apollo’ and ‘Hubble’ spring tend to be at the forefront of their minds, but arguably the most successful mission of all will come to an end today. After 18.6 years in space and defying several earlier expectations of its demise, the joint ESA/NASA solar orbiter Ulysses will achieve 'end of mission'. The final communication pass with a ground station started at 09:35 AEST and run until 14:20 AEST, or until the final command is issued to switch the satellite's radio communications into 'monitor only' mode.

This week, a boutique builder of million-dollar supercars snapped up an established automaker with nearly 5,000 times its yearly output of vehicles. What's the deal? Is it a matter of super-hubris or another sign of a coming paradigm shift in the auto industry?

Back to the Future II was a bit of a disappointment in the face of the original. Granted, it was hamstrung by the throw-away ending of the first, but it did have that brilliant opening sequence with the hoverboards. How much did you want a hoverboard after seeing that? Not to mention, the computerized, self-drying jacket Marty puts on to blend in. The stuff of fantasy, right? At least for the latter, not for much longer.

The last few years have seen tremendous growth in solar thermal power plants—huge arrays of mirrors that concentrate the sun's energy onto a liquid which then boils and spins a turbine. The process is generally more efficient than using photovoltaic panels, and new solar thermal plants under construction in Spain and Australia will be among the largest capacity solar plants in the world. Old-fashioned PV panels were starting to look archaic, or at least suitable only for small-scale projects like roof instillations. But not all PV panels are created alike.

The promise of Wi-Fi is freedom-the ability to bring your laptop or PDA away from the anchor that is your desk and into your life. With most wireless routers, however, your life had better stop at around 300 feet, and forget about heading outside. Between the noise generated by other local wireless devices and physical obstacles like furniture and walls, chances are your Wi-Fi signal is little more than a whisper by the time it hits your backyard. So I built a box that can pick up that signal and boost it another 200 to 300 feet.

For the basic overview of the project, click here.

Parts:

I love the fact that more and more devices are sporting built-in Wi-Fi—the Sony PSP, smartphones, even Kodak’s EasyShare-One digital camera. The lone hitch: Wi-Fi is useless without a hotspot. Sure, thousands of spots are available, but few are free, and coverage is far from ubiquitous. What if you could marry the short-range power of Wi-Fi with the huge coverage areas of high-speed cellular services such as EV-DO to create a portable hotspot?