Day: April 5, 2012

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From Engadget: Researchers create incredibly thin solar cells flexible enough to wrap around a human hair

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You’ve probably heard that the sun is strong enough to power our planet many times over, but without a practical method of harnessing that energy, there’s no way to take full advantage. An incredibly thin and light solar cellcould go a long way to accomplishing that on a smaller scale, however, making the latest device from researchers from the University of Austria and the University of Tokyo a fairly significant discovery. Scientists were able to create an ultra-thin solar cell that measures just 1.9 micrometers thick — roughly one-tenth the size of the next device. Not only is the sample slim — composed of electrodes mounted on plastic foil, rather than glass — it’s also incredibly flexible, able to be wrapped around a single strand of human hair (which, believe it or not, is nearly 20 times thicker). The scalable cell could replace batteries in lighting, display and medical applications, and may be ready to be put to use in as few as five years. There’s a bounty of physical measurement and efficiency data at the source link below, so grab those reading glasses and click on past the break.

 

from Engadget

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From Ars Technica: Feature: How the Aussie government “invented WiFi” and sued its way to $430 million


US consumers will be making a multimillion dollar donation to an Australian government agency in the near future, whether they like it or not. The great majority won’t even know about it—the fee will be hidden within the cost of a huge array of tech products. After the resolution of a recent lawsuit, practically every wireless-enabled device sold in the US will now involve a payment to an Australian research organization called the Commonwealth Scientific and Industrial Research Organization, or CSIRO.

In the culmination of a nearly decade-long patent campaign, CSIRO has now scored a $229 million settlement from a group of nine companies that make a variety of wireless devices and chips, including Broadcom, T-Mobile, AT&T, and Lenovo. The settlement was reached last week just before the companies were scheduled to face a jury in Tyler, Texas—a location with a growing reputation for patent lawsuits.

CSIRO (commonly pronounced “si-roh”) adds this lump sum to the $205 million it received in 2009, when a settlement with 14 companies was struck midway through another East Texas trial. Soon after that, CSIRO began boasting to the Australian press that WiFi was a homegrown invention. By suing over its patents, it anticipated an additional “lazy billion” out of tech products sold in the US. Ultimately, this didn’t quite happen—but CSIRO is about halfway there.

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from Ars Technica

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From Ars Technica: Flashback trojan reportedly controls half a million Macs and counting


Variations of the Flashback trojan have reportedly infected more than half a million Macs around the globe, according to Russian antivirus company Dr. Web. The company made an announcement on Wednesday—first in Russian and later in English—about the growing Mac botnet, first claiming 550,000 infected Macs. Later in the day, however, Dr. Web malware analyst Sorokin Ivan posted to Twitter that the count had gone up to 600,000, with 274 bots even checking in from Cupertino, CA, where Apple’s headquarters are located.

We have been covering the Mac Flashback trojan since 2011, but the most recent variant from earlier this week targeted an unpatched Java vulnerability within Mac OS X. That is, it was unpatched (at the time) by Apple—Oracle had released a fix for the vulnerability in February of this year, but Apple didn’t send out a fix until earlier this week, after news began to spread about the latest Flashback variant.

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from Ars Technica

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From Ars Technica: Judge spares Amazon from Colorado sales tax reporting scheme


A federal judge has ruled that Colorado ran afoul of the US Constitution when it passed legislation forcing out-of-state retailers to report their customers’ purchases to the state’s tax authority.

Two decades ago, the US Supreme Court ruled that a state cannot require mail-order retailers to collect sales tax unless the retailer has a physical presence in the state. Under the commerce clause of the US Constitution, only Congress can regulate interstate commerce, and the Supreme Court ruled that forcing retailers to collect out-of-state sales taxes would create too much of a burden on interstate commerce. The courts left the door open for Congress to establish an interstate sales tax collection system. But while Congress has discussed the possibility, no legislation has been enacted so far.

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from Ars Technica

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From Ars Technica: Farm-fresh infringement: Can you violate a patent by planting some seeds?


Can a farmer commit patent infringement just by planting soybeans he bought on the open market? This week, the Supreme Court asked the Obama administration to weigh in on the question. The Court is pondering an appeals court decision saying that such planting can, in fact, infringe patents.

In 1994, the agricultural giant Monsanto obtained a patent covering a line of “Roundup Ready” crops that had been genetically modified to resist Monsanto’s Roundup pesticides. This genetic modification is hereditary, so future generations of seeds are also “Roundup Ready.” Farmers had only to save a portion of their crop for re-planting the next season, and they wouldn’t need to purchase new seed from Monsanto every year. The company didn’t want to be in the business of making a one-time sale, so when Monsanto sold “Roundup Ready” soybeans to farmers, it required them to sign a licensing agreement promising not to re-plant future generations of seeds.

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from Ars Technica

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From Ars Technica: Extreme pressure could force hydrogen into a high-temperature superconductor


Superconductivity typically demands very low temperatures, requiring liquid helium or similar means to bring the temperature down to where electrical resistance is zero. Even the high-temperature superconductors have yet to come anywhere close to room temperature, topping out at approximately 110 degrees C above absolute zero (which is still 163 degrees below freezing). However, physicists have postulated that certain hydrogen-rich compounds may exhibit significantly higher transition temperatures.

A new simulation by Hui Wang et al. suggests that a calcium hydride compound (CaH6) could have a critical transition temperature as high as 235 K (-38° C). The catch: the material must be subjected to pressures of approximately 150 gigapascals (150 GPa, or approximately 1.5 million atmospheres), pressures more typical of geological processes. The key to the pressure-driven transformation is the formation of a clathrate, or cage-like structure in the crystal lattice. The predicted electronic structure may allow the coupling between vibrations of the atoms (phonons) and electrons, leading to superconductivity.

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from Ars Technica

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From Autoblog: New York: Delorean Electric surprises in New York, will cost $95,000 in 2013

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First announced last October, the reborn, all-electric Delorean has made a surprise appearance at the New York Auto Show this year. It’s a surprise because not even Delorean Motor Company president Stephen Wynne knew he was going to be here until a few weeks ago, when show organizers called with an invite.

With a prime spot near the EV ride along track – the DMCev is sadly not involved – Wynne said he’s been getting good attention, even though said track is in the basement. We asked Wynne what’s been going on with the car since last fall’s announcement and the short answer is that this is one EV concept that’s going into production.

The target date for fans to buy the DMCev is early 2013, but a lot has to happen between now and then. Right now, all the company has is the converted DMC-12 to show off the technology. To create this, the designers had to add 200 pounds of stuff, and the production version is going to be either the same weight as the gas version, or a few pounds less, in order to improve both performance and range. The car is powered by a 32-kWh lithium iron phosphate battery pack and has a 125 mile per hour top speed with a range of 100 miles. Published specs claim a 0-60 time of 4.9 seconds, but Wynne said the target is now under six seconds. Price for all this fun? $95,000.

DMC will assemble the car in Houston, TX with a lot of help from Louisiana’s Epic EV, the company working on the Torq and Amp vehicles (not the Amp conversions). These two companies are testing different motor/inverter combinations for the electric Delorean, and Wynne said they are looking for a “proven product” from a company that has at least “several hundred” units on the road. The current prototype also uses a DC motor, but the production will use AC for better range, performance and regenerative braking ability. The old-school dashboard is also due for an upgrade

Those are the details we could glean in New York. Can you believe we made it through this entire post without a Back To The Future reference? The DMCev can’t do it, though, with a license plate that reads “Gas? Where we’re going we don’t need gas” and a battery that carries the “Flux Power” nickname. For more, you can watch a video of Translogic going for a ride in the DMCev down below, where you’ll also find a related press release.

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from Autoblog