Fireflies Bring Us Brighter LEDs

Zothecula writes “Fireflies have helped an international team of scientists get over 50 percent more light out of existing LED bulbs. It was discovered that in the Photuris genus of firefly, scales in the insect’s exoskeleton possess optical qualities that boost the amount of bioluminescence that can shine through. Those same qualities were found to dramatically increase the light output of an LED bulb.” Read more of this story at Slashdot.

Originally posted here:
Fireflies Bring Us Brighter LEDs

German Scientists Have Built A Real, Functional Laser Turret

You say the words “laser turret”, and you think strategy games. Maybe shooters. They’re as clichéd a defensive tool that science fiction stories can get, but now, thanks to German scientists, they’re real. More »

View post:
German Scientists Have Built A Real, Functional Laser Turret

Hands On With Virtual Reality’s Greatest Hope

adeelarshad82 writes “Oculus VR Rift is a one of the seventeen kickstarter projects to raise more than a million dollars in 2012 and a recently published hands-on shows exactly why it was so successful. Using Oculus VR Rift with the upcoming Infinity Blade and a modified version of Unreal Tournament 3, the analyst found that the 3D effect and head tracking provided a great sense of immersion. At one point while playing Infinity Blade, the analyst describes walking around the guards and watching their swords shift as he stepped, seeming like they were inches from cutting him. While he felt that the demo was impressive, he found that the software limitations made the whole experience a bit unrealistic. Needless to say that Oculus Rift is a long way from hitting stores but Oculus VR is getting ready to ship developer kits.” Read more of this story at Slashdot.

See the original post:
Hands On With Virtual Reality’s Greatest Hope

MyScript Calculator: Somehow Calculators Just Got Even More Convenient

Already on Android for the past few months, this conceptually simple calculator app is finally available to iOS users. What may seem basic in theory becomes extraordinary in MyScript’s execution, leaving you with a buttonless calculator you’d never think to want but can’t imagine living without. More »

Visit site:
MyScript Calculator: Somehow Calculators Just Got Even More Convenient

SkypeHide promises to hide secret messages in silent Skype packets, even when authorities are listening

Buzzing around the internet this week: Polish security researcher and professor Wojciech Mazurczyk (left) claims to be developing a way to hide secret, un-eavesdroppable messages in “silent” packets transmitted within Skype conversations . He and his team plan to present SkypeHide at a steganography conference in Montpellier, France, this coming June. VentureBeat has a writeup here . The ease with which Skype can be snooped by law enforcement is well-known . I’ll be interested to hear what other security researchers make of Mazurczyk’s project, when and if it is eventually released.

See original article:
SkypeHide promises to hide secret messages in silent Skype packets, even when authorities are listening

Samsung’s new eight-core Exynos 5 Octa SoC promises not to hog battery

Not to be outdone by Nvidia’s Tegra 4 announcement and Qualcomm’s Snapdragon 800-series announcement, Samsung took to the stage today to announce the next processor in its Exynos 5 lineup: the Exynos 5 Octa is an eight-core SoC destined for tablets and high-end smartphones. Not all of these CPU cores are created equal: four of them are high-performance Cortex-A15 cores, the very same found in the Exynos 5 Dual that powers the Nexus 10 and Samsung’s ARM Chromebook . The other four are Cortex-A7 CPU cores—these have the same feature set and capabilities as the A15 cores, but are optimized for power efficiency rather than performance. This makes the Exynos 5 Octa one of the first (if not  the first) products to actually use ARM’s big.LITTLE processor switching technology, something we outlined back in October of 2011 . The SoC is designed to dynamically split the workload between the high-performance and the high-efficiency CPU cores based on the task at hand—less strenuous activities like browsing an app store or checking e-mail might be done on the A7 cores, for instance, while gaming and number crunching could be handed off to the A15 cores. Read 3 remaining paragraphs | Comments

View original post here:
Samsung’s new eight-core Exynos 5 Octa SoC promises not to hog battery

Walmart to sell iPhones with a $45 per month unlimited prepaid plan

Starting this Friday, Walmart will be selling the iPhone for use with wireless provider Straight Talk, which is offering a $45-per-month contract with unlimited voice, data, and texting. This sale will make it one of the cheapest ways —as measured over a two-year period—to get a prepaid iPhone. Walmart says it will offer $25-per-month financing for the phone itself if customers use a Walmart credit card. Straight Talk, which uses AT&T’s towers as a mobile virtual network operator (MVNO), is becoming an increasingly popular option for prepaid customers who want to use an iPhone without paying high prices. (Full disclosure: I am a Straight Talk customer, and have been since April 2012.) “We believe customers shouldn’t have to choose between saving money and having the latest technology,” said Seong Ohm, senior vice president of Entertainment for Walmart US, said in a statement on Tuesday. “Now customers can have the coveted iPhone with unlimited talk, text, and data without a contract for $70 a month thanks to our exclusive Straight Talk plan and industry first financing offer.” Read 1 remaining paragraphs | Comments

More:
Walmart to sell iPhones with a $45 per month unlimited prepaid plan

Adobe almost does something amazing by accident

It seemed like an intriguing deal. An old version of Adobe Creative Suite—the 2005 vintage CS2, to be precise—became freely downloadable from Adobe, with nothing more than a free-to-create Adobe ID required from users. Although basically useless for Mac users, as CS2 is only available for PowerPC, for Windows users this is a powerful, if not quite cutting edge, suite of graphics apps. This looked like a clever move from Adobe. Photoshop is widely held to be one of the most routinely pirated applications there is. In making an old but still servicable version of the software it appeared that Adobe was offering a good alternative to piracy: instead of using a knock-off copy of CS6, just use CS2. A free CS2 would also go some way toward starving alternative applications of oxygen. Given the choice between a free copy of CS2 and downloading, say, the GIMP, one imagines that many users would plump for the commercial application. It’s more of a known quantity, with a more polished user interface. And Photoshop is, frankly, the gold standard of bitmap image editing. Even an older version has a prestige that GIMP doesn’t. This is not to say that CS2 is necessarily superior to the GIMP; it may or may not be. It doesn’t really matter; Photoshop has a reputation and respect that the GIMP doesn’t have, and even if some might argue that it was undeserved, it influences the decisions users make. Read 11 remaining paragraphs | Comments

Visit site:
Adobe almost does something amazing by accident