Manhattanhenge
posted on Jul 11, 2008 - View this thread

Is solar-powered flight getting any nearer? As noted previously on Metafilter, solar powered aviation has travelled a long way since the heady days of the Gossamer Penguin. But could it actually one day power commerical flight?
posted on May 11, 2008 - View this thread

Traditional pyrographic, or “woodburning” tools use electricity to heat a stylus or wire. Solar pyrography uses sunlight focused through a magnifying glass to burn an image on wood. Artists who have mastered this technique include Bud Hnetka and Jonathan Beartusk. Videos demonstrating the process include the creation of an Art Blakey image, and the unusual “Durfsun”.
posted on Apr 27, 2008 - View this thread

A Solar Grand Plan: By 2050 solar power could end U.S. dependence on foreign oil and slash greenhouse gas emissions. [Via Gristmill.]
posted on Feb 17, 2008 - View this thread

How Africa's desert sun can bring Europe power. A £5bn solar power demonstration project called Desertec is being developed by Trans-Mediterranean Renewable Energy Cooperation (TREC) that would send solar energy northward from African deserts. The goal is in 30 years to provide a significant fraction of Europe's electricity needs.
posted on Dec 13, 2007 - View this thread

Popular Science has named Nanosolar the #1 innovative product of the year. Finally, cheap and ubiquitous solar power has arrived, “You’re talking about printing rolls of the stuff—printing it on the roofs of 18-wheeler trailers, printing it on garages, printing it wherever you want it,” The only problem is demand, so they're building the world’s largest solar-panel manufacturing facility in San Jose. See 96 other innovations in PopSci's Best of 2007.
posted on Nov 17, 2007 - View this thread

A tour around Discovery STS-120 and the International Space Station with Paolo Nespoli and Dr. Scott Parazynski. Tomorrow, Parazynski will be perched at the end of a robot arm and sensor boom assembly, stitching up a damaged solar array in what might be one of the riskiest EVAs since Skylab 2.
posted on Nov 2, 2007 - View this thread

The Solar Decathlon is a just-completed competition in which 20 teams of college and university students competed to design, build, and operate the most attractive and energy-efficient solar-powered house. View a photo gallery or take video tours of the homes. Inhabitat has been blogging the event - here's their view of Germany's winning entry.
posted on Oct 21, 2007 - View this thread

The Zephyr, a solar powered plane, has smashed the record for the longest duration un-manned flight, staying aloft with engines running for 54 hours. This was just a test run at the US military White Sands Missile Range in New Mexico, according to the UK developers, "You ain't seen nothing yet". Meanwhile in Switzerland, development continues on the Solar Impulse, which has a goal of flying around the world, manned(!), by 2010.
posted on Sep 11, 2007 - View this thread

Google went solar yesterday! Google's PV solar system went live yesterday (or at least the stats page did.) Also, they converted 100 Priuses to plug-in electric vehicles, to be recharged by the PV solar panels. Pictures.
posted on Jun 19, 2007 - View this thread

Enertia is producing "innovative new homes of remarkable strength, economy, and beauty, brought to life by an elegant new architecture and the discovery of a new source of pollution-free energy." The design took first prize in the Modern Marvels/Invent Now competition (previously). In an interview, the inventor, Michael Sykes, says "he was inspired by the way the earth’s own atmosphere keeps the planet at a relatively constant comfortable temperature despite the frigidity of space." He also notes that his wife calls herself a "homemaker," natch.
posted on May 17, 2007 - View this thread

Solar Tower (text and video). "The rays of sunlight reflected by a field of 600 huge mirrors are so intense they illuminate the water vapour and dust hanging in the air."
posted on May 3, 2007 - View this thread

The Solar Ark - built to symbolize the goal of becoming a "clean energy society".
posted on May 1, 2007 - View this thread

Staring at the sun. YouTube video of solar flares, made from images captured by the SOHO satellite. Yes, there is more.
posted on Apr 16, 2007 - View this thread

Sunspot activity is closely linked to climate. Although it observes an 11 and 22 year cycle, the overall trend of activity shows much longer term variations. The so-called Maunder Minimum (1645-1715) coincided with the Little Ice Age, while the Medieval Maximum coincided with the Medieval Warm Period. Analysis of beryllium isotopes from ice cores in Greenland shows that sunspot activity is currently at a 1000 year high. Could this account, at least in part, for global warming? Recent data from Mars suggests this may be so, while others remain sceptical. Bonus pix, more here.
posted on Apr 10, 2007 - View this thread

Mike Strizki lives in the nation's first solar-hydrogen house. "The technology this civil engineer has been able to string together – solar panels, a hydrogen fuel cell, storage tanks, and a piece of equipment called an electrolyzer – provides electricity to his home year-round, even on the cloudiest of winter days. Mr. Strizki's monthly utility bill is zero – he's off the power grid – and his system creates no carbon-dioxide emissions. Neither does the fuel-cell car parked in his garage, which runs off the hydrogen his system creates."
posted on Mar 16, 2007 - View this thread

Have you ever wondered what a solar eclipse would look like from space? The STEREO (Solar TErrestrial RElations Observatory) has just sent back its view (awe-inspiring video included). It has also sent back some gorgeous pictures of our sun (and the McNaught Comet). For more media, check out the other galleries (including some 3D images). For more about the project, see NASA's STEREO homepage. Be sure to also stop by the Johns Hopkins University STEREO Page, where you can download a mission guide (pdf), view animations, watch a video of the launch, or even make your own papercraft STEREO model (pdf). You can also learn more in six minute segments with their series of short educational videos.
posted on Mar 13, 2007 - View this thread

Hybrid solar lighting is here. Happier employees and spendier mall shoppers are on the horizon. HSL basics. Direct savings comes from reduced electrical demand during peak hours, reduced cooling costs of conventional lighting, and eliminating the heat and maintenance costs of skylights. Call for the price.
posted on Mar 9, 2007 - View this thread

The Thirteen Towers of Chankillo in Peru may be the Western Hemisphere's oldest known full-service solar observatory, showing evidence of early, sophisticated Sun cults, according to archaeoastronomy professor Clive Ruggles. The 2,300-year-old complex featured 13 towers running north to south along a ridge and spread across 980 feet to form a toothed horizon that spans the solar arc. Last year, another ancient observatory was discovered in Peru by Robert Benfer. The Temple of the Fox is 4,200 years old, making it 1,900 years older than the Chankillo site, but wasn't a complete calendar.
posted on Mar 3, 2007 - View this thread

Cheap solar power poised to undercut oil and gas. The "tipping point" will arrive when the capital cost of solar power falls below $1 per watt, roughly the cost of carbon power.
posted on Feb 19, 2007 - View this thread

CitizenRe is a solar power rental company for the home. Free to install (!), a monthly rental fee is equal to what would normally be paid to the power company. Video.
posted on Jan 11, 2007 - View this thread

The Edison of our age? Stanford Ovshinsky may not be a household name, but his inventions have the power to change the world.
posted on Jan 1, 2007 - View this thread

Astronomy 161 - an introduction to Solar System Astronomy. These are a set of lectures in progress now at Ohio State University. All materials are available on line - audio resources (direct or podcast through iTunes), movies and lecture notes. If you are interested in where you live, these beautifully delivered lectures are excellent.
posted on Nov 25, 2006 - View this thread

Nanocrystal technology shows promise for cheaper, more efficient solar energy generation [more inside]
posted on Mar 13, 2006 - View this thread

Aurore, a renewable energy (RE) service provider in South India has been designing and developing RE products like solar lanterns and street lights, arranging for microfinance to support installation in remote villages and winning prestigious awards for their work. Cleaner, safer and cheaper than fossil fuels, their business philosophy is grounded in a greater vision than mere profit.
posted on Jan 24, 2006 - View this thread

The Solar Decathlon 2005 winners announced. The Solar Decathlon brings together 18 teams of college and university students from around the globe to participate in an unparalleled solar competition to design, build, and operate the most attractive and energy-efficient solar-powered home.
posted on Oct 17, 2005 - View this thread

Cosmos 1 is officially lost! However, fellow solar sailors, it's not too late to buy a t-shirt. I, however, can't help but focus my attention on this educational BBC News article; I believe I'm having some sort of pavlovian response to that last diagram, but thankfully it seems I'm not the first solar sailing pervert out there.
posted on Jun 29, 2005 - View this thread

solar deathray
posted on Mar 23, 2005 - View this thread

The kilometer-high Solar Tower to be built in Australian outback (previous post) has finally purchased a site, and construction may be finished in 2009. Other towers may be built in China and the US.
posted on Feb 24, 2005 - View this thread

As a sufferer of Seasonal Affective Disorder, I was interested to discover this village's proposed solution. Were they inspired by Gustav Graves, d'you think?
posted on Jan 21, 2005 - View this thread

Verdier, a very geeky proposal for the redesign of the VW Westfalia. I think my brain just exploded. It has solar panels, an integrated pop-top tent with a huge awning and an attached screened enclosure, a fold-out kitchen with tables and chairs and more. [Flash-based, English translation link available at the bottom.]
posted on Dec 9, 2004 - View this thread

Catch NASA's solar capsule!
Via B3ta
posted on Sep 10, 2004 - View this thread

Because spaceflight, in and of itself, is just way to easy. On 08 August 2001, NASA launched Genesis. It was a spacecraft that would spend 1125 days in space, including 884 days collecting 0.4 milligrams of solar particles. At that point, it would launch a 500 lbs return vehicle that would travel 600 mph back to earth. When it enters the atmosphere, at approximately 11:55am EST on Wednesday of this week, it will be going close to twenty-five thousand mph. Oddly enough, this is the easy part of the mission.

Because then, two minutes later, NASA is going to catch it. In mid-air. With a helicopter. Really.
posted on Sep 7, 2004 - View this thread

Barefoot Solar Engineers. India's Barefoot College teaches poor and illiterate women to build and maintain rural solar systems in areas with little or no electric supply. [Via WorldChanging.]
posted on Jul 29, 2004 - View this thread

The 16th annual Tour de Sol showcases experimental vehicles built by students, individuals, and corporations that can cut greenhouse emissions, and compete for top awards. More photos and reports. Then cruise on over to the Green Car Club for a list of Green Cars available to buy today.
posted on Jun 19, 2004 - View this thread

World solar challenge 2003. Darwin to Adelaide 19 - 28 October. Check out the route. Meet the teams. Have a look at the Green Fleet class as well, where technology meets reality. I won't be able to watch the race but have high hopes for next year's Olympics.
posted on Oct 18, 2003 - View this thread

A kilometre-high solar tower, to be built in the Australian outback by EnviroMission Ltd, will become the world's tallest structure when completed in 2006. Designed by Jorg Schlaich of Schlaich Bergermann und Partner, the solar tower (or solar chimney) operates like a hydroelectric power plant, but uses hot air instead of water, and it could provide enough electricity for 200,000 homes. Time calls it one of the best inventions of 2002, and I think it's one of the most ingenious ideas I've ever heard. Another solar chimney project was planned in Rajasthan, India, but I haven't found any information on its current status.
posted on Jan 6, 2003 - View this thread

omg we're all going to die, which means the hurricanes, the war against terrorism, high school free speech... it's all a big nothing!
posted on Oct 2, 2002 - View this thread

A very well designed site on the Analemma. Don't be scared off by the math, as there are excellent diagrams and quicktime movies on this difficult to visualize phenomena. Difficult, but not impossible, to photograph (probably less than 10 photos are in existence) Ulrich Bienert came close, and has a gallery and some tips if you're so inclined.
posted on Aug 6, 2002 - View this thread

Let the sun do your cooking for you! Not just a great way to save electricity, gas, or charcoal... (particularly if you live in California *grin*) it's delicious too! We built the Solar Funnel Cooker just for the halibut (groan) - cooked it in white wine with shredded zucchini and carrots - and it was the most tender, tasty fish I've ever eaten.
posted on Jun 28, 2001 - View this thread

Darwin's Paradise Lost. I'm really suprised no one's mentioned the oil spill that's threatening some of the most rarest animals in the world right now. With oil spill after oil spill, it really amazes me that we're not experimenting with safer, cleaner fuels. Although I wonder what would happen to wildlife should you spill 144,000 gallons of ethanol or biodiesel....though you can't really spill hydrogen or solar fuel, can you?
posted on Jan 23, 2001 - View this thread

A Green Flash from the Sun - I always thought this was a myth, but if NASA says it's true... (and I believe everything I read).
posted on Oct 27, 2000 - View this thread