First time accepted submitter CanadianRealist writes “Electrolysis of water to produce hydrogen is very inefficient without the use of a catalyst. Unfortunately catalysts are currently made of crystals containing rare, expensive toxic metals such as ruthenium and iridium. Two chemists from the University of Calgary have invented a process to make a catalyst using relatively non-toxic metal compounds such as iron oxide, for 1/1000 the cost of currently used catalysts. It is suggested this would make it more feasible to use electrolysis of water to create hydrogen as a method of storing energy from variable green power sources such as wind and solar.” Read more of this story at Slashdot.
See original article:
New Catalyst Allows Cheaper Hydrogen Production
Remember the Thonet bicycle concept , and how we weren’t sure if the seat-tube-less design would be possible to execute in steambent wood? Seeing as there’s still no word on whether it will become a reality, Japanese design student Yojiro Oshima has done them one better with a prototype of his unconventional bicycle concept. For his degree project at Musahino Art University’s Craft & Industrial Design Department, he has designed and built a Y-Foil/Softride-style frame by hand (it wasn’t based on a chair per se, but I’m seeing a little Wegner myself). The designer recently sent the project to James Thomas of BicycleDesign.net , where Oshima notes : “This proposal is about the shape of the frame and the handle mainly which doesn’t concern what material it’s made out of. The maximum comfort can be put into practice by wood.” Thus, the frame concept also echoes that of the previously-seen (steel) Van Hulsteijn , which is currently in production. A visible seam Regarding the construction and other carpentry/bike nerd concerns, Oshima adds, It is all hand made. The down tube and seat tube are hollowed with plenty of thickness left not to disturb the surface when planed too much. As a result, it weights about 14kg in total. The thickness is uncertain though, I guess it’s about 6-12mm. It is bonded the half and half into one. I was also curious to learn that the trispoke-style wheels were originally known as “baton” wheels—the renderings of the Thonet concept has a set of HED’s top-of-the-line carbon fiber version—and that the clover-like construction is intended to “soften the ride.” Similarly, the cantilevered saddle intended for comfort, while the short stays speak to performance by “assuring the stiffness.” Check out the full-size images at BicycleDesign.net (more…) 
Why won’t the internal combustion engine die? To oversimplify the issue, it’s partly because of its incumbency and partly because it’s very good at what it does. Environmentalists hate it because it’s dirty, and while some engineers pursue alternate energy forms, there are still plenty of smart people tweaking the internal combustion engine to make it less dirty, more efficient, and more powerful. One person in the latter category is Christian von Koenigsegg , the rather brilliant inventor behind the Swedish supercar skunkworks that bears his name. Anyone with a basic understanding of how engines work is bound to be impressed by von Koenigsegg’s latest breakthrough: He’s developed an engine with no cams. With a conventional engine, the valves are driven by cams that are necessarily egg-shaped, with each cam driving its attendant valve stem into its deepest extension at the pointiest part of the egg as the cam rotates on the camshaft. Simple physics dictate this be a gradual process; because of the egg shape the valve gradually opens, maxes out, and gradually closes. If a cam was shaped like an off-center square, for instance, the valve stem would break on the corners. With von Koenigsegg’s radical “Free Valve” engine design, the valves operate independently and electronically to depress/open, while a mechanical spring returns them to the closed position. This means the valves quickly slam open, allowing fuel to flood the combustion chamber, then quickly slam shut. Ditto for the exhaust valves. So fuel is not gradually seeping in and exhaust is not gradually seeping out—it’s going BAM in, BAM out. The benefits? The engine is much smaller, of course, requiring no camshaft or timing belt. On top of that they’re projecting 30% less fuel consumption, 30% more torque, 30% more horsepower, and a staggering 50% less emissions. In the video below, von Koenigsegg walks you through it: (more…) 
gannebraemorr writes “U-T San Diego reports that the city has become ‘the latest in a cadre of California cities turning their backs on red-light cameras — aloof intersection sentries that have prompted $490 tickets to be mailed to 20,000 motorists per year’ there. ‘Mayor Bob Filner announced his decision to take down the city’s 21 cameras at a news conference set at the most prolific intersection for the tickets, North Harbor Drive and West Grape Street, near San Diego International Airport. A crew went to work immediately taking down “photo enforced” signs throughout the city. “Seems to me that such a program can only be justified if there are demonstrable facts that prove that they raise the safety awareness and decrease accidents in our city,” Filner said of the cameras. “The data, in fact, does not really prove it.”‘ I have to say I’m a bit surprised that my city is voluntarily shedding potentially $9.8M in revenue after objectively evaluating a program. I wonder how much a system would cost that could switch my light from green to red if it detected a vehicle approaching from a red-lit direction at dangerous speeds. Can you think of an other alternative uses for these cameras?” Read more of this story at Slashdot. 
An anonymous reader writes “According to data from the American Automobile Association, the average price for a gallon of gas in the U.S. was higher in 2012 than in any year before it. Nationwide, gas averaged $3.60/gallon, up from $3.51/gallon in 2011. ‘The states with the most expensive annual averages for 2012 included Hawaii ($4.31), Alaska ($4.09), California ($4.03), New York ($3.90) and Connecticut ($3.90). The states with the least-expensive annual averages included South Carolina ($3.35), Missouri ($3.38), Mississippi ($3.39), Tennessee ($3.40) and Oklahoma ($3.41). The highest daily statewide average of the year was $4.67 in Calif. on Oct. 9, while the lowest daily statewide average was $2.91 a gallon in South Carolina on July 3.’ Bloomberg reports that fuel consumption is down 3.6% compared to last year, while U.S. oil production reached almost 7 million barrels a day recently, a level that hasn’t been reached since 1993. AAA predicts gas prices will be cheaper in 2013.” Read more of this story at Slashdot. 
An anonymous reader writes “Today China continued rolling out the future of high speed rail by officially unveiling the world’s longest high-speed rail line — a 2,298-kilometer (1,428-mile) stretch of railway that connects Beijing in the north to Guangzhou in the south. The first trains on the new route hit 300 kph (186 mph), cutting travel time between the two cities by more than half.” Read more of this story at Slashdot.