MikeChino writes "Australia-based EnviroMission Ltd recently announced plans to build two solar updraft towers that span hundreds of acres in La Paz County, Arizona. Solar updraft technology sounds promising enough: generate hot air with a giant greenhouse, channel the air into a chimney-like device, and let the warm wind turn a wind turbine to produce energy. The scale of the devices would be staggering — each plant would consist of a 2,400 foot chimney over a greenhouse measuring four square miles. The Southern California Public Power Authority has approved EnviroMission as a provider, although there’s still plenty of work to be done before the $750 million, 200 megawatt project can begin."

William Robinson writes "After an 18-day journey, Chandrayaan-1, the moon mission of India, has entered Lunar orbit. The maneuver was described as crucial and critical by scientists, who pointed out that at least 30 per cent of similar moon missions had failed at this juncture, resulting in spacecraft lost to outer space. The lunar orbit insertion placed Chandrayaan-1 in an elliptical orbit with its nearest point 400 to 500 kilometers away from the moon, and the farthest, 7,500 kilometers. By November 15, the spacecraft is expected to be orbiting the moon at a distance of 100 kilometers and sending back data and images (the camera was tested with shots looking back at Earth). The Chandrayaan-1 is also scheduled to send a probe to the moon's surface."

Iddo Genuth writes to tell us that Samsung and Unidym have shown the world's first carbon nanotube-based color e-paper. Interestingly, the new film is electrically conductive while remaining almost completely translucent and only 50 nanometers thick. "The company also mentions that the EPD [electrophoretic displays] has important advantages over conventional flat panel displays. EPDs have very low power consumption and bright light readability, which means that even under bright lights or sunlight, the user would be able to view the display clearly. Furthermore, since the device uses the thin CNT films, applications can include e-paper and displays with thin, flexible substrates. Power consumption is lowered due to the EPD's ability to reflect light and therefore able to preserve text or images on the display without frequently refreshing."

Smivs notes a BBC report on a British team planning a 1000-mph record-breaking car. The previous land-speed record broke the sound barrier. The proposed vehicle will get from 0 to 1,050 mph in 40 seconds. "RAF pilot Andy Green made history in 1997 when he drove the Thrust SSC jet-powered vehicle at 763 mph (1,228 km/h). Now he intends to get behind the wheel of a car that is capable of reaching 1,000 mph (1,610 km/h). Known as Bloodhound, the new car will be powered by a rocket bolted to a Typhoon-Eurofighter jet engine. The team-members have been working on the concept for the past 18 months and expect to be ready to make their new record attempt in 2011."

Slashdot has one of the best discussion systems there is. It's grown and adapted over the years to meet various challenges and suit the needs of our users. A lot of time and effort has gone into it and we are always open to user input to help make it better. Some of our best ideas start as user suggestions and we appreciate the feedback. Of course they can't all be gems and sometimes the suggestions we get are unworkable or just bizarre. Here are a few of my favorite unhelpful, helpful suggestions.

An anonymous reader writes "Do engineers have a way of looking at the world not all that different from terrorists? According to an article in the EE Times, they do. The story cites 'Engineers of Jihad,' a paper (pdf download) by two Oxford University sociologists, who found that graduates in science, engineering, and medicine are strongly overrepresented among Islamist movements. The paper also found that engineers are 'over-represented' among graduates who gravitate to violent groups. Authors Diego Gambetta and Steffen Hertog chalk this all up to what they call the 'engineering mindset,' which they define as 'a mindset that inclines them to take more extreme conservative and religious positions.' Is this just pop psychology masquerading as science?"

The NPD group, owners of the not-quite-as-popular-as-they-had-hoped HD-DVD format, attempted to battle back against the tide of "naysayers" who claim that the format war is over and have declared Blu-Ray Disc the winner. "While select articles have implied that HD-DVD as a format is doomed and the sky is falling for the format's supporters, the NPD Group this afternoon reinforced that sales results from a single week do not necessarily indicate a trend, and that the week in question had several intriguing variables that have gone unreported."

An anonymous reader brings us this article from Wired about a new method to produce fuel with the help of concentrated sunlight and carbon dioxide. The process "reverses" combustion, breaking down the CO2 into carbon monoxide, which is then used as a building block for hydrocarbons. Quoting: "The Sandia team envisions a day when CR5s are installed in large numbers at coal-fired power plants. Each of them could reclaim 45 pounds of carbon dioxide from the air daily and produce enough carbon monoxide to make 2.5 gallons of fuel. Coupling the CR5 with CO2 reclamation and sequestration technology, which several scientists already are pursuing, could make liquid hydrocarbons a renewable fuel."

Ponca City, We Love You writes "The Senate just passed a bill that will increase auto mileage standards for the first time in three decades. The auto industry's fleet of new cars, sport utility vehicles, pickup trucks and vans will have to average 35 mpg by 2020, a significant increase over the 2008 requirement of 27.5 mpg average. For consumers, the legislation will mean that over the next dozen years auto companies will likely build more diesel-powered SUVs and gas-electric hybrid cars as well as vehicles that can run on 85 percent ethanol. Automakers had vehemently opposed legislation in June that contained the same mileage requirements and Fortune magazine reported that American automakers were starting the miles-per-gallon race far behind Japan and that the new standards could doom US automakers. At the time, Chrysler officially put the cost of meeting the proposed rules at $6,700 per vehicle. The White House announced the President will sign the bill if it comes to his desk."

Reservoir Hill writes "Work is progressing on the design of the new Orion Crew Exploration Vehicle (CEV), the next generation of NASA spacecraft that will take humans to the International Space Station, back to the Moon, and hopefully on to Mars. One major question about the spacecraft has yet to be answered. On returning to Earth, should the CEV land in water or on terra firma? After initial studies, the first assessment by NASA and the contractor for the CEV, Lockheed Martin, was that landing on land was preferred in terms of total life cycle costs for the vehicles. Getting the CEV light enough for the Ares rockets to be able to launch it, and therefore eliminating the 1500 lb airbags for landing has its appeal. A splashdown in water seems to be favored."

chroma writes "It's been a long time since anyone has explored the surface of the moon. But now Google has teamed up with the X PRIZE Foundation to offer a $30,000,000 bounty to the first privately funded organization to land a robotic rover on the moon. Google, of course, has offered the free Google Moon mapping service for a few years now. Looks like the other search engines have some catching up to do in the space exploration department."

An anonymous reader writes "Last week Sony finally launched its super slim, super sexy TZ series of laptops in the US. If you've been waiting to get your hands on one of these, check out this first review of the top drawer TZ12VN, complete with solid state hard disk. It's a lot of money, but it sure looks sweet!"

Dee writes with word of a Canadian study indicating that lifelong bilingualism delays the onset of dementia by 4 years. The scientists were reportedly "dazzled" by the results. From the article: "The researchers determined that the mean age of onset of dementia symptoms in the monolingual group was 71.4 years, while the bilingual group was 75.5 years. This difference remained even after considering the possible effect of cultural differences, immigration, formal education, employment and even gender as influencers in the results. "

An anonymous reader writes, "According to CNet, a company called Benefon has launched a cell phone with a built in GPS receiver — nothing new there. However, this particular GPS cell phone, called the Twig, does something extra. It can send your GPS coordinates to another Twig owner and then that person can navigate directly to you using the preloaded navigation software. Sounds like this could save a lot of time and effort when trying to explain to the in-laws where your new apartment is." The article says that the phone will cost £330 in the UK, or about $625.