Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Submission + - Scientists report first solar cell producing more (physorg.com)

Fireking300 writes: A paper on the breakthrough appears in the Dec. 16 issue of Science Magazine. Titled “Peak External Photocurrent Quantum Efficiency Exceeding 100 percent via MEG in a Quantum Dot Solar Cell,” it is co-authored by NREL scientists Octavi E. Semonin, Joseph M. Luther, Sukgeun Choi, Hsiang-Yu Chen, Jianbo Gao, Arthur J. Nozikand Matthew C. Beard. The research was supported by the Center for Advanced Solar Photophysics, an Energy Frontier Research Center funded by the DOE Office of Science, Office of Basic Energy Sciences. Semonin and Nozik are also affiliated with the University of Colorado at Boulder.
The researchers achieved the 114 percent external quantum efficiency with a layered cell consisting of antireflection-coated glass with a thin layer of a transparent conductor, a nanostructured zinc oxide layer, a quantum dot layer of lead selenide treated with ethanedithol and hydrazine, and a thin layer of gold for the top electrode.

Software

Submission + - DARPA seeks app developers for War App Store (extremetech.com)

MrSeb writes: "DARPA has a problem on its hands: Satellites, unmanned drones (UAVs), and myriad other worldwide sensors are now so ubiquitous and omnipotent that the Department of Defense (DOD) doesn’t actually know how to make the best use of them. In other words, the hardware is there, but the software isn’t. To tackle this particularly tricky issue, DARPA is looking for smartphone app developers to help build “sophisticated, adaptive applications.” Yes, DARPA wants to give smartphone developers access to the DOD’s fleet of Hellfire missile-equipped UAVs. Instead of using a single, remote pilot to fly just one UAV, DARPA imagines “an app [...] that allows a swarm of small deployed UAVs to be controlled as a single unit (a hive [mind] so to speak).” DARPA also wants app developers to help out with easy-to-use app interfaces, novel uses of smartphone-like sensors (accelerometers, cameras, gyros) — and ultimately, it wants to make a War Market where a soldier can simply log in with his DOD-issued smartphone or tablet and download Angry UAVs, Nuke Ninja, and other battlefield apps."

Comment Australia beats my connection / price on.. (Score 1) 161

Australia beats my connection / price on everything except Data caps. I currently have Timewarner Wideband Internet in Dallas, Texas. I currently have 50 Mbps Down and 5 Mbps Up as my selected tier package. Which costs $99.99(USD) a month. I see that it would cost a Australian with iiNet only $99.95($99.95 Australian Dollars = 97.0015 US dollars) for Twice the speed with a 1 TB Cap. They have me beat on pricepoint. But Timewarner has no Data caps in my area.

Submission + - Quantum optical link sets new time records (nanowerk.com)

An anonymous reader writes: Quantum communication could be an option for the absolutely secure transfer of data. The key component in quantum communication over long distances is the special phenomenon called entanglement between two atomic systems. Entanglement between two atomic systems is very fragile and up until now researchers have only been able to maintain the entanglement for a fraction of a second. But in new experiments at the Niels Bohr Institute researchers have succeeded in setting new records and maintaining the entanglement for up to an hour. The results are published in the scientific journal Physical Review Letters.
The Internet

Submission + - Tens of thousands flee from BT and Virgin (itpro.co.uk)

twoheadedboy writes: "The two biggest ISPs in the UK are losing thousands of customers. Earlier this week Virgin reported it had lost 36,000 cable broadband customers. BT, meanwhile, has seen around 125,000 active consumer line customers flee this quarter. With that many customers leaving, where are they going?"

Submission + - Chromebooks available for use on Virgin America (virginamerica.com) 1

Fireking300 writes: From July 1 to September 30 Google has partnered with Virgin America to allow guests on select routes to check out a Chromebook at their departure gate and take it on board.
You can try out a new Chromebook from San Francisco, Dallas-Fort Worth, Boston, and Chicago, exclusively on Virgin America.
It will be Internet connected powered by "Gogo Inflight" for free on Chromebooks.

Security

LulzSec Announces That It Is Done 412

MaxBooger writes "LulzSec, the notorious hacker group that's been on a rampage, just announced that it's disbanding. This follows 50 days' chaos during which time it took down several websites (including CIA.gov at one point), exposed passwords, exposed documents of the Arizona penal system, and at one point threatened to hit Too Big To Fail banks. Obviously, it's possible that the group will not abide by its promise to quit. Nobody knows."

Submission + - Swedish Pirate Party Launches ISP (sydsvenskan.se) 1

WillDraven writes: Torrentfreak is reporting that The Swedish Pirate Party has launched an ISP. Starting with 100 residents in the housing organization LKF (Swedish) in the city of Lund, Pirate ISP hopes to gain 5% of the market in Lund before spreading to other markets. Headed by longtime Pirate Party member Gustav Nipe, seen giving an English interview about the ISP here, the company aims to provide internet service with the sort of guarantees one would expect from the Pirate Party. Most notable of these are the promises to keep no logs of subscriber activity and provide no data to law enforcement or private corporations. The original Swedish report on Sydsvenskan can be found here.

Submission + - .CO Domain Launches Today (bybits.info)

barnabasnagy writes: .CO Internet S.A.S launches its general registry process for the brand new .CO domain today. It’s a very good possibility to get superb domains that were unavailable with the overcrowded .COM domain.

Slashdot Top Deals

"Gravitation cannot be held responsible for people falling in love." -- Albert Einstein

Working...