Tuesday, 24 July 2012

God particle or H Boson particle revealed

At CERN research centre, Scientists have discovered a new subatomic particlethat could be exclusively the Higgs Boson, which is believed to be a key factor in formation of Universe.
Peter Higgs has already told that he never doubted the existence of the so called God particle in the 48 years since he proposed its existence.The Higgs particle, although important for understanding and examining how the universe was formed, remains theoretical. It explains how particles clumped together to form stars, planets and even life.
Without the discovery of Higgs particle, the particles that make up the universe would have remained like a shake.Speaking two weeks after Cern scientists announced they had discovered a new particle bearing all the characteristics of a Higgs, the retired professor admitted that he had not expected his theory to be vindicated in his lifetime.


But he insisted that he had always remained strongly convinced of the particle’s existence despite initial criticism within the scientific community.In his famous 1964 paper, Prof Higgs became the first scientist to propose a new, massive boson particle to explain how fundamental particles – the building blocks of the Universe – get their mass.
The Higgs boson was considered as the last missing milestone of the Standard Model of Physics, a theory which describes how the known particles in the Universe interact with each other, until the announcement by Cern confirmed its existence.
  “I had faith in the theory behind the mechanism, as other features of it were being verified in great detail at successive colliders. It would have been very surprising if the remaining piece of the puzzle wasn’t there,” he said.
 At the Cern lab in Geneva two weeks back, Prof Higgs had difficulty holding back his tears as researchers revealed findings from the Large Hadron Collider which laid virtually any doubts about his theory to rest.
But the Edinburgh-based scientist added that he hoped people would simply refer to the particle as the “H boson” and not as ‘the God particle’ as it has been found.
Prof Higgs has always taken himself uncomfortable about the attachment of his name to the boson, not least because five other scientists published papers on the same mechanism at the same time as his paper.
 

Thursday, 19 July 2012

LG Optimus 4X HD, L5

LG's Optimus 4X HD is the company's first quad-core product which is equipped with a quad-core NVIDIA 1.5GHz Tegra 3 processor. The handset is available with Android 4.0 OS a.k.a Ice Cream Sandwich out of the box. LG might have been one of the top pioneers in launching dual core smartphones, but they seem to have taken a little longer to arrive in this case. Having a sporty look with large 4.7-inch touchscreen display of the HD-IPS variety, the 4X is all set to take on the One X and the Galaxy S III. The handset is pretty slim as well, measuring 8.9 mm at its thinnest point, which puts it in the same league as the One X. The Samsung Galaxy S III is slightly thinner though, measuring 8.6 mm.


The 8MP (with LED flash) autofocus camera’s capabilities include its ability to record videos in Full HD (1080p  at 30 frames per second). Face and Smile Detection, image stabilization, Panorama and touch focus. The handset also includes a dedicated microphone for noise cancellation.

Some of the highlighted features of the LG Optimus 4X HD:

  • 4.7 inch True HD IPS display with a 1280 x 720 pixel resolution
  • 3G, EDGE/GPRS, Wi-Fi (Hot spot), Wi-Fi Direct, DLNA
  • NFC, Bluetooth with A2DP, USB 2.0
  • GPS with A-GPS support
  • 8 megapixel BSI Sensor (Rear) with LED flash, 1.3 megapixel front camera
  • Stereo FM Radio
  • 16 GB memory expandable via microSD, 1GB LP DDR2 RAM
  • MHL for AV out
The Optimus L5 has been fitted as a mid-range handset which in addition  also runs on Android 4.0 (Ice Cream Sandwich) out of the box. Unlike some of the competition in the same price bracket, the L5 does not feature a 1GHz processor. LG has instead decided to go with an 800MHz Qualcomm processor. The handset also comes equipped with an NFC chip, which makes it one of the cheapest devices featuring this technology.

Specifications of the Optimus L5:

  • 4.0-inch TFT LCD, capacitive Touch HVGA display with a 320 x 480 pixel resolution
  • 3G, EDGE/GPRS, Wi-Fi (Hot spot)
  • NFC, Bluetooth 3.0, USB 2.0
  • GPS with A-GPS Navigation,
  • 5MP camera with LED flash
  • FM radio
  • 4GB internal + microSD card support for up to 32GB 
The Optimus 4X HD is priced at Rs. 34,990 and the Optimus L5 is priced at Rs. 13,199.

Wednesday, 11 July 2012

Future of 4G till 2017

Though Airtel is currently the only telecom provider in india to offer 4G network and in only states like Kolkata and bengaluru, 4G network will cover half the world by 2017- according to Ericsson's annual report.This would mean that high speed Internet access would be a common phenomena,making it easy to download videos and play games on th go.
This revolution is driven by smartphones,video,cloud based services, the internet and end to end connectivity.According to the report, data traffic, particularly video, is expected to grow 15-fold by 2017.
                             
While 3G will remain the main technology for years to come, the demand for high speed Intenet access measn operator will have to build new 4G networks to cope.

Tuesday, 10 July 2012

Amkette Android Media Player

Amkette's Evo TV is claimed to make your TV smarter than smart TV, giving one-click access to content and applications. The Evo TV is primarily a digital media device which allows its users to surf the web on their television just like they do on computers.


            Claimed to be the first of its kind television oriented device, the Android based Evo TV enables you access contents like videos,mp3's,games and websites using Wi-Fi and broadband connection as speed is needed for that.It comes bundled with a remote control that acts like a mouse and has a microphone to enable conversations on VoIP( like Skype).
The device is powered by twin processors, ARM Cortex A9 and ARM Mali 400 Graphics processor.The motion-sensing remote, called Evo TOuch which adds to the look and feel of a touchscreen. You can also browse through the specific views like Skype, Youtube and Tune In at one time.Also, you have one-click access to six different entities of applications or weblinks. You can even create ,edit,move and delete views.

Sunday, 8 July 2012

Nikon D3200 -SLR Camera and Price



Nikon D3200 delivers 24.2 megapixel image quality and wirelessly connects to mobile devices.
Nikon D3200 is a powerful DX-format digital SLR camera. It comes in a portable,compact and light-weight body.It features a 24.2 megapixel CMOS sensor and Expeed 3 image processing engine, to deliver high image quality and full HD video capabilities.

                         The enhanced Guide mode provides step by step assistance to the user while taking pictures.The D3200 supports collaboration with  Android-based devices,with use of wireless mobile adaptor WU-1a. Thanks to WU-1a, users can not only transfer images to smart-phones( Android 2.3 series), tablets ( Android 3.x series) and other smart devices but also remotely control shooting via a wireless communication.

Price:
48,950 (with AF-S 18-105 mm VR kit lens)
37,950 (with AF_S 18-55 mm VR kit lens)
32,250 (Body only)

Friday, 6 July 2012

Dye-sensitised solar cell to boost power efficiency

Researchers have developed a stable dye-sensitised solar cell that may turn out to be cheaper than silicon based cells.The all new Gratzel cell design , named after Swiss chemist, replaces silicon with Titanium-oxide semiconductor. This came out to be much cheaper, readily available and less toxic,thereby improving solar energy's green credentials.


However, there is one challenge with the new design--Its electrolyte is made of an organic liquid that leaks, threatning to corrode the cell.This problem has been resolved by the scientists with the use of the new material that solidifies, thus avoiding leaks and making solid state cell more stable.The material used is a thin film compound called CsSnI3- a combination of cesium, tin and iodine. It is addd in a liquid form to dye-coated nanoparticles and then it turns into a solid mass.
               According to people associated with the project, this is the first demo of the solid state dye-sensitized solar cell that can definitely ensure better efficiencies than the present current solar technologies in the world..

Monday, 2 July 2012

LTE- 4th Generation (4G)


LTE (Long Term Evolution ) is also known as 4G wireless communication technology. LTE is a third generation partnership project(3GPP). 3GPP is a collaboration of groups of telecommunication associations. It has produced many well known technologies like global system for mobile communications(GSM), general packet radio service(GPRS), enhanced data rates for GSM evolution(EDGE),high speed packet access(HSPA), and recently LTE and LTE Advanced(LTE-A).


The research on LTE progressed in 2004 with an aim to enhance 3GPP’s already existing UMTS by simplifying the existing hybrid circuit switchedwith a packet only core network.This helps in achieving higher data rates leading to higher throughput,lower latency resulting in lower delay or faster data transfer,lower communication cost and enhanced efficiency.
Requirements: Reduced cost per bit,reduced power consumption by terminals,flexible use of new or existing frequency bands, and simplified network architecture.

LTE  is bound to be effective for both the consumers and the service providers. It promised to  provide data rates of upto 100 Mbps for downlink and 50 Mbps for uplink, within a cell of 5km radius. The number of users that can be supported within a the cell can vary from 200 to 400.Channel bandwidths can vary from 1.4 Mhz to 20 Mhz in both uplink and downlink. LTE also claims to support mobility speeds  of upto 350 kmphwith inter cell soft handovers .Support for 350-500 kmph is under consideration. Since LTE has evolved from already existing 3G technologies,operators can upgrade the existing infrastructure to support LTE,which will prove to be economical and efficient for the operators.