Popular Science

Highways filled with hydrogen cars are still decades away, but that doesn’t diminish the achievement of rolling the first fuel-cell car off a mass-production line. To open up interior space, Honda developed its own fuel cell, a 100-kilowatt stack that packs substantially more energy into a 65 percent smaller space than other designs and squeezes neatly into the tunnel between the front seats. And by working through several generations of concept cars, Honda has gotten the once-experimental FCX to look and drive just like a gas-powered car. [ Read Full Story ]

Think that college lab work is dull and uninspiring? Student inventors claimed a $25,000 grand prize and other awards Wednesday night for creating antibacterial agents, "plastic steel," and a spherical robot that can climb stairs.

The winners were contestants in the 2008 Collegiate Inventors Competition, operated by the National Inventors Hall of Fame Foundation since 1990.

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Despite our niftiest holograms and watermarks, counterfeiters still manage to sneak billions of dollars of fake goods onto store shelves. Instead of slapping on authenticity seals, which can be copied, Ingenia Technology’s anti-counterfeit scanner reads the nanoscopic variations that occur naturally on the surface of every object, from documents to a perfume bottle, and no two are ever the same. [ Read Full Story ]

Regenerative braking, the process through which an electric car grabs otherwise wasted energy from the brakes as the car glides to a halt, is a brilliant bit of engineering for efficiency—take energy that's otherwise only good for burning up brake pads, and turn it into electricity that charges the battery.

It may also make the uninitiated driver want to vomit.

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As any brewer will tell you, the yeast used to make beer tends to bunch up during fermentation. However, despite thousands of years of brewing and decades of genetic research on yeast, no one was able to explain why yeast stuck together. Now, not only has the gene behind the clumping been discovered, but that gene also offers an interesting look at how life may have become multicellular, and provides a new example of an important evolutionary theory.

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For years, the increased accuracy, smoothness and reliability of electronic shifting has been perhaps the ultimate goal for high-performance-bike designers. After several companies’ attempts failed—suffering from breakdowns in bad weather, poor battery life or unbearable complexity—Shimano’s Dura-Ace Di2 has finally delivered it. [ Read Full Story ]

Call us obsessed, but we can't get enough high-speed video. The scientists at GE turned us on to this footage of water bouncing off a superhydrophobic surface. As the droplets come into contact with the extremely water-resistant surface (in this case, some unknown nanoparticle-based surface, possibly nanopin film), they smash into bits and rearrange Terminator-style, bounce like a basketball and generally retain their perfect-droplet shape.

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Drywall, plasterboard, wallboard—whatever you call it, the substance that covers billions of square feet of American homes hasn’t changed since its invention in 1917. Dry-
wall factories still roast ground-up gypsum rock in 500°F kilns, spewing out 20 billion pounds of greenhouse gases a year. So Serious Materials created EcoRock: a drywall that congeals without heat, uses recycled materials that don’t require mining, and holds up even better.

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Nokia recently hosted a cocktail party to introduce journalists to its chief designer, Alastair Curtis. The Brit's formal slide presentation was a carefully crafted marketing piece, hammering in his Finnish employer's slogans such as "beautiful to use" and "connecting people." And he provided a bright glimpse into the company's future plans in response to our questions.

The revelations started when Curtis described Nokia's record in America. "The U.S. hasn't been Nokia's strongest suit," he conceded. But the company aims to change that, having just completed a fact-finding trip around the States, where Americans were "talking about music, talking about gestures, talking about what they want for the future."

Talking about gestures?

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Tales of Testing Lauren Aaronson, Associate Editor One day I walked into work, and my new Lenovo X301 laptop was gone. Good thing it had Phoenix FailSafe, a program that lets you track and control a missing computer. I borrowed a PC to log onto Phoenix’s Web site, where I reported my laptop lost and asked to retrieve an important document. [ Read Full Story ]

Last spring, scientists from the Queensland Museum in South Brisbane, Australia, discovered this new coral species hanging underneath a rocky ledge about 50 feet deep off the northern end of Australia’s Lizard Island. They now hope to classify the coral, along with hundreds of other recently discovered marine invertebrates.

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When lunar astronauts flick on their televisions after a long day of prospecting, they’ll have a trashcan-size nuclear reactor to thank for their nightly dose of prime time. NASA, looking past the already daunting task of simply getting humans to the moon by 2020, recently started considering proposals for ways to power lunar habitats. Batteries and fuel cells provide only short-term solutions. Solar power would be limited where a single night lasts as long as 354 hours. So space-agency officials have started making plans to go nuclear.

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