Uplink Audio Strap System offers solar power for runners on the run

Designer Adam Hammerman's concept -- the Uplink Audio Strap System -- is for all you sports enthusiasts that want to listen to tunes while running but don't want to be bothered with headphones. It can connect with a variety of different mobile devices, and boasts four ultrasound speakers, meaning that you can hear the music but nobody else can, so you're not disturbing the peace! For outdoorsy types, of course, it would be a much safer system for things like running, since you would still be able to hear the street noise around you, and the device would also have flexible solar panels which charge the speakers on the go. It's just a concept for now, but one we'd like to see in reality.

Solar Impulse returns from 24 hour test flight 26 hours later

Rest easy, fans of solar-powered aeronautics. Captain Piccard's Solar Impulse has safely returned after 26 hours in the air -- powered by nothing but the sun. The four-engine aircraft, which features 12,000 solar cells arranged on its wingspan, reached a height of almost 29,000 feet before touching down at Payerne Airport near Berne, Switzerland today. The next step? The team is going back to the woodshed, with the hope of developing a plane that will circumnavigate the globe by 2013.

Solar Pebble lamp doubles as a gadget charger, world changer

It might not change the world, but it won't be for lack of trying. Plus Minus Solar has designed what it's calling the LED Solar Pebble, a multifaceted device that requires just a pinch of sunlight (or maybe gobs of it, actually) in order to generate artificial light. And charge your arsenal of gizmos. It's engineered to be built at a low cost and used in developing nations, but unfortunately there's no confirmation on what exactly it'd charge. 'Course, it's just a concept as of now, so we're guessing a micro-USB and mini-USB socket could be tossed on by whatever manufacturer would be kind enough to get this to a production line. Right, prospective manufacturers?

Inhabitat's Week In Green: 3D printed veins, solar cell towers, and the Ingocar

At Inhabitat we've seen 3D printers that create entire buildings out of stone and complete meals out of simple ingredients, but this week we watched in awe as scientists used a 3D printer to create the world's first "printed" human vein. And if advances in biotech get your blood flowing, you'll be excited to hear that this week a team of researchers successfully tested a new type of nanobot that travels through the bloodstream to turn off tumor cells. Contact lenses are also getting a much needed upgrade as scientists unveiled a new type capable of fighting glaucoma and other diseases by dispensing a powerful dose of medication.

In other news, solar energy is lighting up the world at large as India gears up to power all of its cellphone towers with photovoltaic cells, saving 5 million tons of CO2 and $1.4 billion annually. And speaking of silicon cells, the National Renewable Energy Laboratory recently unveiled its latest creation: a super robot capable of assembling an entire photovoltaic cell in 35 minutes flat. We also looked at a prototype of a prismatic solar balloon that uses a colorful new type of solar cell to soak up the sun's energy from high in the sky.

Finally, this week we took an in-depth look at the Ingocar, a hydraulic hybrid drive vehicle so light and efficient that it promises a mileage of 170MPG. This next-gen vehicle uses hydraulic fluid under pressure to accelerate, brake, and eliminate the need for a heavy mechanical drive train, making it 50% lighter than hybrid electric vehicles. And if you've ever experienced the maddening anxiety of circling for a parking spot on crammed city streets, relax - there's an app for that!