Hasta La Gadget!

You know what we love? Solar-powered gadgets, and carbon nanotubes. Oh, and Ivy League schools. Boffins from Cornell University are now looking to use the multifaceted carbon nanotube instead of silicon to develop efficient solar cells, and judging by the glacial pace at which solar cell efficiency is improving, we’d say the sector could use the boost. The researchers have already fabricated, tested and measured a simple solar cell (called a photodiode, just so you know) that was formed from an individual carbon nanotube. The tube was essentially a rolled-up sheet of graphene, and while the inner workings would take days to explain, the gist of it is this:

“The nanotube may be a nearly ideal photovoltaic cell because it allowed electrons to create more electrons by utilizing the spare energy from the light.”

So, solar-powered F-350 trucks are now a possibility for next year, right?

[Via Graphene-Info]

Filed under: Science

Cornell gurus look to carbon nanotubes for efficient solar cells originally appeared on Engadget on Thu, 17 Sep 2009 22:21:00 EST. Please see our terms for use of feeds.

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So we’ve been playing with the Devotec Industries Solar Sound Bluetooth speaker system for a couple days now, and we’ve got to say we’re pretty impressed — we just wish it could run directly (and indefinitely) off the solar panel, instead of requiring an internal battery that takes 12-24 hours to charge from the sun or four hours to charge off USB. That said, you will get eight hours of decent audio when the battery is full, and it’s actually relatively loud — you’ll be more than fine indoors and in quieter spots, although cranking things up all the way results in some audible distortion. Of course, it’s A2DP, so setup is a breeze with most Bluetooth devices, including 3.0 iPhones, and you can hook most everything else up with the included 3.5mm headphone cable. (Just keep in mind that Apple doesn’t properly support AVRCP, so the forward and back control buttons don’t work correctly over Bluetooth.) Not bad for $79 — and you won’t have to burn through endless AAs to take your tunes on those summer picnics and beach trips.

Filed under: Portable Audio

Devotec Solar Sound Bluetooth speaker hands-on and nano-review originally appeared on Engadget on Thu, 23 Jul 2009 11:27:00 EST. Please see our terms for use of feeds.

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Now here’s a smart marketing campaign. In an effort to raise awareness / interest in its 2010 Prius, Toyota planted five 18-foot tall “solar flowers” in Boston’s Prudential Plaza and provided free Wi-Fi and electricity that was “partially powered” by the solar panels attached to the petals and stem. The so-called “Harmony Between Man, Nature and Machine” just disappeared from Boston but will next germinate in New York, followed by Chicago, Seattle, San Francisco, and Los Angeles. We’re not exactly in the market for a car right now, but we promise to think about it while we lovingly enjoy the free laptop charge and internet access.

[Via PhysOrg]

Read – Flickr set from Boston
Read – Schedule

Filed under: Transportation, Wireless

Toyota’s giant solar flowers popping up across US to bring good will, free WiFi, and charging stations originally appeared on Engadget on Tue, 21 Jul 2009 01:47:00 EST. Please see our terms for use of feeds.

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Juxtaposing the manmade and the natural in artistic expression oftentimes leads to creepy results. It is no mean feat, then, that the Jerusalem night garden — built out of steel wires, laser-cut panels and 1W to 3W Power LEDs — feels like a warm and welcoming place to visit. Whether it is the clean energy source, producing 720W of electricity per hour, or the ethereal light and movement of the flowers, something about the exhibition awakens the wistful child we’ve got locked away in the Engadget dungeons. He cries out for more of this aesthetically pleasing eco-friendly design, which in this case even comes with a specially composed soundtrack. To see if you agree with such juvenile enthusiasm, check out the video after the break.

[Via inhabitat]

Continue reading Video: Solar-powered night garden fills Jerusalem with tranquility, world peace soon to follow

Filed under: Misc. Gadgets

Video: Solar-powered night garden fills Jerusalem with tranquility, world peace soon to follow originally appeared on Engadget on Mon, 13 Jul 2009 06:19:00 EST. Please see our terms for use of feeds.

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You might have seen solar-powered planes before, but few of them come with as much world-changing ambition as the Solar Impulse. Launched in 2003, the project aims to demonstrate the viability of renewable energy sources by being the first to perform a manned flight around the globe using only solar power. The technology is nothing to scoff at, as the 200-foot wingspan features 12,000 photovoltaic solar cells bringing power to four electric motors. Captain Bertrand Piccard, one of the key men behind this project, is best known as one half of the first team to circumnavigate the world in a balloon in 1999. He hopes, together with partner André Borschberg, to repeat that achievement in Solar Impulse’s next iteration, the HB-SIB, in 2012. Make it so, guys.

[Via Gizmag]

Filed under: Transportation

Captain Piccard unveils Solar Impulse HB-SIA solar-powered plane originally appeared on Engadget on Fri, 03 Jul 2009 22:06:00 EST. Please see our terms for use of feeds.

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