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Wednesday, 26 November 2014

Simple Circuit to double the Wireless Data speed ( Cellular and Wifi)

At the University of Texas researchers have invented a simple circuit that can send and receive the data/signal at same time the thing called the "full-duplex". Till now our radio system had very small gap in sending and receiving the signal but the new circuit doesn't has it even.

Today's world radio circuit has gap between sending and receiving the signal is to save the signal from drowning. But, this new circuit can manage to send and receive at same time which deliberately makes the data transmission speed double as the present times. 



The new circuit called circulator can isolate the signals those coming into the antenna from those which are going out. Circulators are at the present times a crucial part of our radar systems but, they till now were made using very strong magnets and rare earth metals making it unsuitable for smartphones and wifi routers. 

The new circuit designed is very light small, cheap and ideal for smartphone use according to Andrea Alu associate Professor who led this work. The 2 cm circuit can be fit into now days devices very easily with some modification a sort of standalone the mobile device antenna.

The circuit can be considered as a road junction having three roads i.e. road into it, out from it and the circle via any of those wires. But components called resonators forces signal to move in clockwise direction.

Alu says the his circuit could fit inside any of the modern device to send and receive the data. He says that some U.S. and European cellular companies are working on hardware and software to allow full-duplex communication. H e thinks of commercializing the design.

But, one question I wonder is increasing the transmission and receiving rate will increase in heat generation and power consumption.

What do you think about Alu's project comment below.

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Friday, 21 November 2014

Two new supermassive particles found at LHC



There is always a lot more to discover about our universe. LHC ( Large Hadron Collider ) which 2 years ago came in news for the discovery of the Higgs Boson. Recently two more new subatomic particles known as Xi_b'- and Xi_b*- ( pronounced as ZAI-bee-minus and ZAI-bee-star-minus respectively ) these particles were predicted to exist by the particle physicists, now they have been observed at LHC.

These both particles from the name suggest that they would have almost similar properties, consisting of down quark, strange quark and bottom quark. Spins of down and strange quark are different though lightly (5.935 GeV vs 5.955 GeV). 

These two particles joins the list of hadrons. There are only 17 fudamental particles ( such as electrons, neutrons, higgs boson etc.) in the Standard Model. They are predicted to combine into hundreds of other composite particles. By smashing atoms together with the accelerators scientist have managed to glimpse many of these composite particles, usually as they quickly decay into fundamental particles but, many are still to be discovered.

The new Xi bayrons were discovered by the LHC's seven hyper-sensitive particle detedtor. LHCb's a special type of detectors are tunes to detect these kind of particles. Also earlier this year LHC discovered a new type of particle named as exotic hadrons with highly unusually made of four quarks instead of three 

Friday, 14 November 2014

After Quantum Computers The era of Optical Computers

Just think using lasers instead of wires in computers. British researchers have created a new material that could allow creation of all optical computers that are far more faster than today's electronic computers. Here we don't have to fabricate a hard to make material like graphene or some. We are talking about Chalcogenide Glass.




You might be wondering about the material we are talking about. We all have seen it and made use of it. Chalcogenide glasses that can change their state between glassy and crystalline state. This is used in recording layer of re-writable CD and DVD. Chalcogenide glass is generally GST (Germanium Antimony Tellurium) that changes between glass and crystalline when it's struck by the laser.   


In today's world most of computers run over flow of electricity, copper wires and over transistors. This thing creates a lot of heat which we all know from our day to days life, our laptop's throwing out heat all the time when we do some heavy task on it, which  deliberately decreases it's efficiency and performance. That's why we use optical fibers and lasers for backbone internet connections.

It's very hard to use a laser inside a small silicon chips for transfer of data. Researchers at University of Surrey, University of Cambridge and University of Southampton in England may come up with a solution that will allow a single component that can produce light, guide light, store light and detect it.



The English researchers are using Chalcogenide glass, which are always p-type Semiconductor and managed to turn it into n-type semiconductor allowing them to build pn junction. PN junctions are the primary blocks of almost every semiconductor device from LEDs to Photovoltaic cells.

These much more efficient computers may be available for us and may bring a revolution in world of computing

What you think about it comment below

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Sunday, 9 November 2014

Energy Generating Road to be opened in Netherlands


Think of a road producing electricity for your entire city, sounds interesting. In Netherlands the idea is about to be implemented "SolaRoad" the project being worked in Netherlands. The world's first solar bike path is set to be open there on 12/11/2014 (dd/mm/yyyy). The amazing road will run from Amsterdam's northern suburb of Krommenie and will have concrete slabs embedded with solar panels to. 



The project has been under work since 2009, when the Netherlands Organization for Applied Scientific Research (TNO) led a team of road construction and technical service providers to explore solar potential of the Holland's roads. Estimate is that the 140,000km of roads in the country between 400 and 500 km sq. of surface area that could potentially tapped for solar power.



Initially a 70 m long bicycle path with embedded solar panels will open on 12 novem. 2.5 by 3.5 m concrete slabs will make up the path and feature a layer of crystalline silicon solar cells with 1 cm thick layer of translucent tempered glass. The glass is translucent enough to pass the sunlight through and hard enough to give a surface of road. 


By channeling its energy into the bicycle path pilot, SolaRoad is aiming to establish maximum solar efficiency on a small scale first. It says this more cost-effective strategy will see money saved for further development down the (solar-powered) road.


What do you think about the road and the amazing concept comment below.
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