Sunday, April 15, 2012

Best Of Indian : Agni-V Missile Test

India's most-ambitious nuclear missile, Agni-V, which classifies as an ICBM (intercontinental ballistic missile) with a strike range of over 5,000-km, will be tested in mid-April, he said.

The three-stage Agni-V, with its advanced ring-laser gyros, composite rocket motors and highly accurate micro-navigation systems, comes close to the top American missiles in terms of technology, said Saraswat.
India will break into the exclusive ICBM club that counts just US, Russia, China, France and UK as its members, once the 50-tonne Agni-V is ready for induction by 2014-2015. The solid-fuelled missile, with a canister-launch system to impart greater operational flexibility, is crucial for India's nuclear deterrence posture since its strike envelope will be able to cover the whole of China.

Concurrently, said Saraswat, "The K-15 SLBM is now getting ready for the final phase of induction after its two recent tests (from submersible pontoons) were successful...We have done over 10 flights of it so far."
The 750-km-range K-15, followed by the 3,500-km K-4, will arm India's homegrown nuclear submarines. INS Arihant, which is undergoing trials now, for instance, has four silos on its hump to carry either 12 K-15s or four K-4s to complete India's long quest for "an operational nuclear weapon triad".

As for the two-tier ballistic missile defence (BMD) system, designed to track and destroy incoming hostile missiles both inside (endo) and outside (exo) the earth's atmosphere, Saraswat said its Phase-I would be completed by 2013 and Phase-II by 2016. "We will test the exo-atmospheric interceptor at 150-km altitude this year, which will be followed by an endo-atmospheric test at 30-km altitude," he said.
With the Capital identified as the first city to get its protection, DRDO has also begun work to add a third tier to the BMD system to intercept cruise missiles, artillery projectiles and the like at lower altitudes, in the line with the overall aim to achieve "near 100% kill or interception probability".

DRDO is now also focusing on "space security", with special emphasis on protecting the country's space assets from electronic, or physical destruction by "direct-ascent" missiles, in the backdrop of China developing advanced ASAT (anti-satellite) capabilities.

Work is also in progress to develop several directed energy weapons (DEWs), including a 25-kilowatt laser system to destroy incoming missiles in their terminal stage and a 100-kilowatt solid-state laser system to take out missiles in their boost phase itself.

"We also need to build the capability to provide launch-on-demand mini or micro satellites to our armed forces for communication and navigation facilities (in the event the country's satellites being destroyed by an enemy)," said the DRDO chief.

Saturday, October 15, 2011

New Firefox interface to speed up Firefox on Android




Firefox logo 
Mozilla has decided that when it comes to Android devices, performance is more important than the wealth of add-ons that can be used to customize Firefox. 

Yesterday, Mozilla's Director of Firefox Engineering Johnathan Nightingale announced on a mailing list that Firefox will move to Android's native user interface, ditching the XUL technology that has been in use by Mozilla since before there even was a Firefox. 

"Firefox on Android is a critical part of supporting the open Web, and this decision puts us in a position to build the best Firefox possible," Nightingale said. 

Firefox is widely used on personal computers but a rarity on mobile phones, where--unlike Apple's Safari or the unbranded browser Google builds for Android--it's not installed on any phones by default. Firefox is the chief way Mozilla tries to implement its vision of empowering users of the Web and keeping that Web an open technology. 

Firefox with a native Android interface should mean faster start-up, less memory usage, and smoother zooming and panning, Nightingale said. The native UI project page for mobile Firefox, aka Fennec, also listed better battery life as a benefit. 

It's not clear when the rebuilt version will arrive, but it won't be for either the beta or Aurora versions currently in testing, Nightingale said. 

Start-up time is a big deal when comparing Firefox to the built-in browser on Android, especially since Firefox often gets kicked out of memory when not in use, forcing another sluggish load when a person taps a link and needs the browser again. 

"After substantial discussion, we have decided to build future versions of Firefox on Android with a native UI [user interface] instead of the current XUL implementation," Nightingale said. 

Only the user interface will change; the browser will still use the underlying Gecko engine for processing Web page elements. But leaving XUL behind will be a big deal for anyone who built Firefox add-ons using the technology, and it complicates the process of translating Firefox into different languages, too. 

"It's still early days, so we have a lot of questions to answer," Nightingale said. "We're talking with the Add-on SDK team about the best way to support extensions. We're talking with l10n [localization] about how to ensure we support Firefox users wherever they live around the world." 

One possibility, according to Some meeting notes on native-UI Firefox is blunter: "Extensions are gone." The notes raise the possibility of using Mozilla's Add-On Software Developer Kit (SDK), an online tool for creating add-ons, but at present that works only for new-style "Jetpack" add-ons that aren't available on mobile right now
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For now, there's a lot of planning to do about the transition.
"By the end of next week, we will have a clearer outline of the work ahead," Nightingale said.

Friday, September 16, 2011

Why Windows 8 isn't an iOS copycat

Intel next-gen chip to support key Apple tech

Intel's next-generation processor is expected to add support for a key OS X technology that accelerates gaming and financial applications. That potentially means a more powerful MacBook Air in the future.


The MacBook Air could get a boost from the upcoming Intel processor that supports improved graphics performance.
The MacBook Air could get a boost from the upcoming Intel processor that supports improved graphics performance.



Listed as a "core" OS X technology, OpenCL "dramatically accelerates" applications by tapping into the special processing power of the graphics processing unit (GPU), according to Apple. It taps into what an Apple developer page states as the "the amazing parallel computing power of the GPU."

GPU-centric acceleration can be used for financial modeling, accounting applications, analysis on large media files, games, and media applications. In general, the GPU is much better than the CPU (central processing unit) at certain types of computations--thus the necessity of GPUs in games.

In fact, much of the performance boost in Intel's next-generation Ivy Bridge processor (up to 60 percent faster than Intel's current Sandy Bridge chip) is due to more graphics circuits. Of the several hundred million additional transistors in Ivy Bridge (compared to Sandy Bridge), many are dedicated to boosting graphics performance.

To be fair, Nvidia's and Advanced Micro Devices' GPUs already support OpenCL but since neither of those GPUs are in the third-generation MacBook Air, the popular Apple MacBook would likely need an updated Intel processor to get that support.

That's where Ivy Bridge comes in. That Intel chip is due for volume production in the first quarter of next year potentially putting it in a refreshed MacBook Air sometime after that.

Indeed, that's a question that may dog the MacBook faithful in the coming months. When, in fact, will MacBooks get the Ivy Bridge processor?

Which leads to another intriguing question. Ivy Bridge also supports USB 3.0--a faster version of aging USB 2.0. Will Apple also equip MacBooks with USB 3.0 ports next to the existing Thunderbolt port?