By Carina StorrsPosted 10.05.2009 at 1:42 pm 19 Comments
Solar Force Field
University Corporation for Atmospheric Research
The first computer-generated model of an entire sunspot—a magnetic anomaly on the surface of the sun—tracks the magnetic fields in the area, helping researchers figure out how the sun releases energy around the spots. At the dark center, or umbra, the field is so strong—about 1,000 times the solar average—that it blocks the solar gases that typically bubble to the surface.
By Kevin PurdyPosted 10.02.2009 at 11:32 am 2 Comments
You can. And now that Google has launched its Google Voice service (google.com/voice), it's free. At press time, the service was invitation-only, but when it becomes more widely available, here's how it will work: You get a new universal phone number with your choice of area code, along with a Web-based inbox to manage your voicemail, text messages and call history.
Who needs brakes? When you're converting a junk-stuffed shopping cart into an electric joy-ride-mobile, they're the last thing you worry about. MIT undergrad Charles Guan's LOLriokart—the name is a mash-up of Web and videogame-speak—grew out of his membership in the MIT Electronics Society, a student engineering club. With no plans to build a vehicle, he looked around the club's shop and spotted the shopping cart, some discarded wheels and an electric engine normally used in high-performance golf carts.
Astronomers and students from the University of Khartoum form a line half a mile wide to comb the Nubian Desert for tiny fragments of a rare asteroid.
Peter Jenniskens/NASA Ames Research Center/SETI
On October 7, 2008,shortly before dawn in northern Sudan, a trucker named Omar Fadul el Mula was praying at a remote teahouse in the Nubian Desert when a bright flash lit up the landscape. It was as if the world had switched from night to day. He sprung to his feet, ran around the small building, and saw a huge trail of dust and debris stretched high in the sky.
Battle gear inspires a better battery-powered jacket
By Mark AndersPosted 09.29.2009 at 10:00 am 0 Comments
Soldiers sometimes lug more than 30 pounds of batteries to run GPS units and other critical gear, so San Francisco company Ardica set out to give them a lighter power pack. Now a civilian version lets the rest of us charge our phones—and stay warm. Ardica’s Moshi Power System is the first to charge your heated winter clothes, like this jacket from Mountain Hardwear, and your gadgets.
A spokesperson for Fisker says the Karma, its electric sports car due out next year, will warn pedestrians by emitting a noise possibly "akin to a jet fighter."
Courtesy Fisker Automotive
By 2020, one in every five cars sold in the U.S. will be a hybrid electric vehicle. That's nice for the planet, but bad for pedestrians who can't hear the quiet vehicles' approach. Some automakers will equip hybrids with artificial engine sounds, but some drivers say that less noise pollution isn't such a bad thing. Here, a cheat sheet to the noisemaker debate.
In a series of studies designed to assess two anti-tissue-rejection drugs, former University of Alabama–Birmingham surgeons Judith Thomas and Juan Contreras carefully detailed experiments in which they replaced one kidney in rhesus monkeys with a foreign one and, a month later, removed the remaining native kidney. The new organs took, they reported. The drugs worked.
By Natalie AvonPosted 09.22.2009 at 10:00 am 5 Comments
The numbers tell the story: Of the 648 people killed by lightning in the U.S. from 1995 to 2008, 82 percent were male. And as much as we were hoping to uncover a biological cause—extra iron in the male cranium, perhaps, or the conductive properties of testosterone—it turns out men are... just kind of stupid. “Men take more risks in lightning storms,” says John Jensenius, a lightning safety expert with the National Weather Service.
The world is about to get four billion more nurses. With the help of add-on apps and gadgets, cellphones can become medical helpers that track and transmit your vitals to physicians. These mobile aides will help catch diseases early, save ER visits, and cut health-care costs. And as future implants let phones trigger drug release, your favorite gadget may even save your life.