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Topics - sajol

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16
                              
সম্প্রতি 'জেনেটিক্স' জার্নালে প্রকাশিত একটি গবেষণা প্রবন্ধে জিন বিজ্ঞানীরা সিমেলে নামের ভিন্নধর্মী একটি ধরনের মশা আবিষ্কার করেছেন। এ পদ্ধতিটি এ রকম_একটি পুরুষ মশার জিনে বিষাক্ত পদার্থ ঢুকিয়ে দেওয়া হবে। শুক্রাণুর মাধ্যমে সেটা চলে যাবে নারী মশার দেহে। ফলে সেই নারী মশা ডিম পাড়ার ক্ষমতা হারিয়ে ফেলবে। তবে নারী মশার দেহেও আগে থেকেই বিষ প্রতিরোধক একটি জিন ঢুকিয়ে রাখা হবে। ফলে নারী মশাটির মারা যাওয়ার আশঙ্কা থাকবে না। এ গবেষণার নেতৃত্ব দেন ড. জন মার্শাল।

ম্যালেরিয়া নিয়ে জিন বিজ্ঞানীরা অবশ্য এর আগেও কাজ করেছেন। যেমন_ব্রিটেনের বিজ্ঞানীরা জেনাটিক্যালি মডিফাইড বা জিএম মশা সৃষ্টি করেছেন। এর ফলে কোনো পুরুষ জিএম মশার সঙ্গে মিলনের পর স্ত্রী মশা ডিম পাড়ার ক্ষমতা হারিয়ে ফেলে। পরীক্ষাগারে এই বিষয়ে সাফল্য লাভের পর গত বছর একটি দ্বীপে কয়েক লাখ জিএম মশা ছাড়েন বিজ্ঞানীরা। পরে দেখা যায়, ঐ দ্বীপের মশার সংখ্যা আগের চেয়ে ৮০ শতাংশ কমে গেছে। উলেস্নখ্য, প্রতিবছর ম্যালেরিয়ায় আক্রান্ত হয়ে সাব-সাহারা আফ্রিকা অঞ্চলে ১০ লক্ষেরও বেশি শিশু মারা যায়।

17
IT Forum / Free (.com) domain Jite nin
« on: January 13, 2012, 03:06:13 PM »
এবার খুব সহজেই জিতে নিন .com ডোমেইন ।
যা করতে হবেঃ প্রথমে এই লিংকে গিয়েরেজিস্ট্রেশন করুন ।
http://www.freepremiumdomain.com/?r=370479

রেজিস্ট্রেশন করার পর একটা Refaral code ।এই কোড টি কপি করে আপনার ওয়াপসাইটে দিয়ে দিন ।
কাজ এখানেই শেষ ।এই লিংকে গিয়ে ৯ জন রেজিঃ করলেই আপনি পেয়ে যাবেন একটি .com ডোমেইন ।
তাহলে আর দেড়ি কেন করে ফেলুন রেজিস্ট্রেশন ।

18
                                      
Latest invention of engineers from the University of California, Berkeley, is energy-scavenging nanofibers that could be used to manufacture clothing and textiles.

With their latest invention engineers will be able to make clothing that could power different portable devices. It is worth mentioning that thanks to nano-sized generators with piezoelectric properties the nanofibers have the ability to transform energy from mechanical stresses, stretches and twists into power. Thus, if used in clothing, the nanofibers could make use of body movements to power gadgets.

"This technology could eventually lead to wearable 'smart clothes' that can power hand-held electronics through ordinary body movements," outlined Liwei Lin, UC Berkeley professor of mechanical engineering and the lead-researcher in the team that created the fiber nanogenerators.

Another advantage of the nanofibers is that they are made using organic polyvinylidene fluoride, which allows them to be flexible and rather inexpensive to make, informs Medical News Today.

Engineers say that in theory it would be possible to generate more power from their latest invention when, for example, a person dances.

Further information please visit-
http://thevividedge.com/clothes-that-produce-electricity/
http://www.infoniac.com/hi-tech/latest-invention-clothes-with-nano-generators-to-produce-power-for-portable-devices.html

19
Textile science, events, trade and issues / Amazing gold cloth !!!
« on: January 10, 2012, 05:05:57 PM »
Swiss boffins produce working cloth made of GOLD

Swiss government boffins, perhaps confirming certain views on the prime preoccupation of many in Switzerland, are overjoyed to announce that they have finally developed a way of making practicably useful textiles out of gold.
                     

Thin gold wires and thread have of course been used as ornamentation on clothing and other textiles for centuries, but until now it hasn't been feasible to produce practical garments etc entirely of gold (so-called "cloth of gold" can't take any stress and is rough to the touch). Plainly this has been a constant irritation to the Swiss, as the scientists of their federal government lab EMPA tell us:

“Attempts had already been made previously to create a gold tie using conventional techniques. A textile fiber was wound with the finest gold wire in the same way a guitar string is made. However material woven from the fiber had a rough, metallic feel to it and it was also not durable enough for commercial use. As a result it was only possible to make the freestanding front face of the tie in gold thread – those parts which were mechanically stressed, the knot and the neck piece, had to remain black”.
                     

That was plainly unsatisfactory, so the federal boffins got to work and developed a process whereby a block of gold is bombarded with high-velocity argon ions, causing gold atoms to fly off it in a plasma and coat a thread which is pulled slowly through the machine. The resulting thread is as strong as silk and seamlessly covered with a durable, continuous layer of gold. Thus far a kilometre of gold thread has been spun – lending a curious modern perspective to the tales of Rumpelstiltskin, the Emperor's New Clothes etc – which is enough, according to EMPA, to make three ties. However, they add:

"A dozen more should be ready in time for Christmas. The first, worldwide exclusive series, tailored in the Zürich tie manufactory Hofmann und Co AG will be on offer to gentlemen with an exclusive sense of style at Swiss francs 7,500 apiece".

Each tie, according to EMPA, contains just 8 grams of the precious metal, which would fetch a bit more than $500 (say 450 Swiss francs) at current rates. There are also plans to make gold handkerchiefs. Perhaps unfortunately for the swankiness premium of these items, we should point out that though the gold thread is interwoven with silk to make the cloth, its core is not actually silk but polyester. The new Hofmann und Co neckwear is thus presumably the world's most expensive polyester tie.

It would also be possible, given that the new textile is as strong as silk, to actually make golden parachutes out of it for use by biz tycoons departing their companies abruptly.

Source:http://eng.spb-venchur.ru/news/11521.htm

20
We human beings tend to forget how far we've come as a species in a relatively short period of time.

In the 1870's, we had the first house that was lighted with electricity. Cars just started to become available 100 years ago. Charles Lindbergh made the first transatlantic flight in 1927. Televisions didn't become widely available until after WWII. In other words, the advances humankind has made in a relatively short period of time -- thanks to men like Edison, Bell, Tesla, Einstein, Franklin, Salk, and the Wright Brothers -- have been nothing short of extraordinary.

Perhaps just as extraordinary is how we tend to simply adapt to these incredible changes, not realizing how completely our world has been altered in a short amount of time. With that in mind, it seems worth looking back at some of the amazing scientific advances we've made in the last few decades.

1) The Microchip

The forerunner to the microchip was invented back in 1959, but it didn't really start to take off until the 1980s. Since then, incredible advances in microchips have made it possible for them to be cheaply and efficiently used for calculators, personal computers, pet identification, automatic teller machines, satellites, pacemakers, cell phones, and microwave ovens among many, many other products. As the century goes on, expect microchips to end up in just about anything and everything -- including you, if you live long enough.

2) The Internet/World Wide Web

The ARPANET (The first Internet) was invented in 1969 and the public only had access to the World Wide Web starting in 1993. Today, less than 20 years later, the web has revolutionized the dissemination of news, has created a new multi-trillion dollar economic phenomenon, has played a role in revolutions, and has interconnected much of the globe. It has also made it possible for spammers all over the planet to reach out and touch someone, but no invention is perfect.

3) The Moon Landing

The first man landed on the moon in 1969, a feat that was so fantastic that there are still conspiracy theorists who insist it couldn't be possible. Putting a man on the moon is perhaps man's most inspiring accomplishment; it opened the door to future space travel and led to a number of spin-off inventions including flame resistant textiles used by firefighters, invisible braces, improved satellite dishes, and better medical imaging. Sadly, the moon didn’t turn out to be made of cheese, which did prevent the Democrats from engaging in the world’s most expensive welfare cheese giveaway.

4) The First Communications Satellite

In 1962, the first satellite capable of sending and receiving data was sent into orbit. Today, we use satellites for GPS, TV, radio, weather tracking, military surveillance, space exploration and global communications among other things. It also gives paranoid men one more thing to spend their time worrying about instead of plotting to get revenge on the neighbors down the street for “hiring the people who follow me around all the time.”

5) The Personal Computer

Today, we take for granted that we have one machine that allows us to access the Internet, do word processing, use a calculator, watch TV, and play games. But, the personal computer only became widely available to consumers in 1974. Things really took off when Microsoft Windows became available in 1985 and it's good that it did; without the prevalence of personal computers, the Internet wouldn't have had nearly as big an impact. We’d also have been denied all those smug Apple commercials, which would be a terrible tragedy for people who absolutely love condescension.

6) The Artificial Heart

There is nothing that piques the interest of a human being quite as much as living a longer life. Implanting a person with an artificial heart in 1982 was an extraordinary step towards increasing the human lifespan, even if the initial patient lived for only 112 days. One day, more advanced versions of artificial organs will likely allow us to live much longer, more productive lives. When we get there, we'll owe a lot to Robert Jarvik's artificial heart. It also opens up the possibility that we might be able, for the first time, to provide union bosses across the country with an organ that they’ve been missing all their lives.

7) Cell phones

Phones have been around since the late 1800s, but cell phones only started to become widely available in the seventies. Today, by some estimates, more than 90% of Americans and more than 4.6 billion people worldwide have mobile phones. Anything that useful, that spreads that fast, has to be considered one of the greatest inventions of all time. Of course, it has also made it possible for jerks to talk on the phone in the movie theater, but every leap forward has a price.

Source:http://townhall.com/columnists/johnhawkins/2011/03/01/the_7_greatest_scientific_achievements_of_the_last_50_years/page/full/

21
Science Discussion Forum / 10 Awesome Inventions of 2011
« on: January 09, 2012, 12:05:43 PM »
Inventions make our world move. We all need them, we all use them, they are the little engine that helps the human race to advance. The human brain, designed to ask questions, to research and to observe, pushes us further and further on the road of evolution. Every year, enthusiastic inventors expose their creations at the exhibitions which are specially created for them. These self-named innovators are, most of them, eccentric persons that expose funny, weird things with no application. However, sometimes, amazing things come out of their hands. These are the  10 best inventions of 2011.

1. The straddling bus

This is the bus of the future, created to ease traffic, in a world which becomes more and more crowded. This bus is as high and as wide as to permit cars to drive under it.  The straddling bus is not only functional but also attractive and futuristic. It is  economica as welll because it uses sun panels placed on the roof.  These buses are designed to transport up to 1200 persons and the cost of building one of them, together with the required equipment should be 10 times smaller than that of creating a subway line on the same distance.

2. Dynamically Glare-blocking LCD Sunglasses

These glasses are meant to stop sunlight from disturbing us while driving. Apparently, Chris Mullin was annoyed by the glare which gave him headaches during his daily travel to work and back home.  This is when he came with the idea of creating a pair of sunglasses using a unique electronic screen to stop sunlight. This is made out of liquid crystals which are as seen through as any ordinary glass, but its properties may be modified according to the inventor’s desire. In addition, a sensor detects the intense light and instantly sends message to a microcontroller on its location. Further, the liquid crystal acts so as to block the glaze, without modifying visibility.

3.The Medical Mirror

Ming Zher Poh, an electrical- and medical-engineering graduate student at the Massachusetts Institute of Technology is the mastermind that designed the software which allows medics to check for vital signs or help people with a cardiovascular problem to control their health regularly. The patient only needs to stand in front of this special mirror and his heart rate will be displayed on top of his reflection.

4. The Print Brush

This device was designed by Alex Breton, an engineer in Stockholm, Sweden for a rubber-stamp company. He called his gadget   ‘Print Brush’. The smart printer is able to upload images and text from the computer and then print it on any flat surface and a large range of textures: paper, plastic, wood or fabric. This wasn’t easy to achieve: It took a lot of work, more than 10 years and a large team of experts to transform the prototype into a very precise new tool.

5. The armored sleeve

This high tech gadget may allow police officers to fight crimes more efficiently. The armour sleeve is equipped with a high voltage stunner, a video camera and a laser pointer which should discourage burglars to become aggressive. The designer of this glove is David Brown, a cameraman, needed 7 years and designed 30 models of the glove before finding the right combination of comfort, ease of use and security.

6. The Formaldehyde testing system

The device won the silver medal at the Geneva 2011 exhibition of inventions. It was designed by a team from the Institute of Textiles and Clothing, led by prof. Jinlian Hu and it can be used by anybody. The tester is small and user friendly and it is a response to the recent increase in the population’s interest for this substance and its effects on the health. This system allows all of us to check the level of Formaldehyde quickly and precisely, in textile and other objects, such as furniture or walls.


7. Google Prius

Google is testing these days, on Toyota Prius , a software which should allow cars to drive themselves. Apparently, before the actual trip of the intelligent car, a specialist drives along the chosen streets and collect data regarding circulation signs and all the other difficulties. It is only then that the Google Prius starts its drive. However, not by itself; on the driver’s seat, there is a trained person who must take control if needed. Moreover, on the co-pilot seat, there is another expert who permanently verifies the software’s functioning and application. This system, if efficient, should reduce the number o car accidents to a great extent.

8. Terrafugia Transition

This is world’s first flying car. It was designed by students, at MIT and it was developed by a small American company, called Terrafugia. Though the concept of the car was invented in 2006, when it was also rewarded, the first aircraft  is about to be released, this is year. It seems that it can be used both as an aircraft and as a car, due to the ability of folding its wings. The driver, or the pilot, depending on how you put it, will need 20 flying hours to learn how to keep this beauty in the sky ad will be able to buy it at a price starting  from $ 194,000.

9. The Kymera body board

The Kymera was designed by Jason Woods out of necessity: his sky boat was too heavy and too large and could not be transported and stored easily. This is why he came with the idea of inventing his own watercraft, as light and easy to transport as possible. He finally came up with this design, auctioned by a hybrid electric-propane four-stroke engine and it weights 15 kg only.Put it on the roof of your car and you can head to the water!

10.  Martin Jet Pack

This device is another this year’ invention which, if effective, will revolutionise the idea of travelling…light! The design was created by Glenn Martin and it is scheduled for release at the end of this year. Apparently, it still needs some work to be done. However, more than 2500 persons have already reserved the gear and are anxiously waiting for Martin to finish working on his jet pack.

Source:http://10awesome.com/10-awesome-inventions-of-2011/

22

যারা আমার মত অনেক গুলো মোবাইল সিম ব্যাবহার করেন এবং আমার মত কুনটার নাম্বার কি তা মনে রাখতে পারেন না তারা নিচের নাম্বার গুলো মোবাইল এ ডায়াল করে আপ্নাদের সিম নাম্বার গুলো অনেক সহজেই জানতে পারেন.



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23
Natural Fibers
    Name of Fiber                  
Flax fiber
    Eastiblished Date                  
5000+;BC
    Historical Bacground                
•   Generally considered to be the oldest natural textile fiber.
•   Fine linen was used as burial shrouds for the Egyptian pharaohs
•   Largest producer Soviet States; other large producers include Poland,
        Germany, Belgium and France. Largest exporters are Northern Ireland and Belgium.


    Name of Fiber                  
Cotton fiber
    Eastiblished Date                  
3000+;BC
    Historical Bacground                
•   Earliest use estimated between 3,000 BC to 5,000 BC.
•   Worn by Egyptians earlier than 2,500 BC.
•   Eli Whitney's invention of the cotton gin in 1793 revolutionized the processing of cotton.
•   The development of the power loom in 1884 brought significant improvements and variations to cotton fabrics.
•   Major producers United States, Soviet States, China and India. Lessor producers include Pakistan, Brazil, Turkey, Egypt, Mexico,Iran and Sudan.


    Name of Fiber                  
Wool fiber
    Eastiblished Date                  
3000+;BC
    Historical Bacground                
•   Used by people of the Late Stone Age,
•   There are 40 different breeds of sheep, which produce approximately 200 types of wool of varying grades.
•   Major producers include Australia, New Zealand, Soviet States, China, South Africa, and Argentina.


    Name of Fiber                  
Silk fiber
    Eastiblished Date                  
2600+;BC
    Historical Bacground                
•   Believed discovered by a Chinese princess.
•   Silk is made from two continuous filaments cemented together and used to form the cocoon of the silkworm.
•   Silk culture began about 1725 BC, sponsored by the wife of China's emperor.
•   Secrets of cultivation and fabric manufacturing were closely guarded by the Chinese for about 3,000 years.
•   There is a story that two monks smuggled seeds of the mulberry tree and silkworm eggs out of China by hiding them in their walking sticks.
•   India learned of silk culture when a Chinese princess married an Indian prince.
•   The major producer and exporter of silk is Japan.


Manmade Fibers


    Name of Fiber                  
Rayon fiber
    Eastiblished Date                  
1910
    Historical Bacground                
•   The first man-made fiber.
•   The first commercial production of rayon fiber in the United States was in 1910 by the American Viscose Company.
•   By using two different chemicals and manufacturing techniques, two basic types of rayon were developed. They were viscose rayon and cuprammonium rayon.
•   Today, there are no producers of rayon in the U.S.
•   In 1884, Count Hilaire de Chardonnet made the first man made fibers from nitrocellulose. He came to be known as the 'father of rayon'.


    Name of Fiber                  
Acetate
    Eastiblished Date                  
1924
    Historical Bacground                
•   The first commercial production of acetate fiber in the United States was in 1924 by the Celanese Corporation.


    Name of Fiber                  
Nylon
    Eastiblished Date                  
1939
    Historical Bacground                
•   The first commercial production of nylon in the United States was in 1939 by the E. I. du Pont de Nemours & Company, Inc. It is the second most used man-made fiber in this country, behind polyester.


    Name of Fiber                  
Acrylic
    Eastiblished Date                  
1950
    Historical Bacground                
•   The first commercial production of acrylic fiber in the United States was in 1950 by E. I. du Pont de Nemours & Company, Inc.


    Name of Fiber                  
Polyester
    Eastiblished Date                  
1953
    Historical Bacground                
•   The first commercial production of polyester fiber in the United States was in 1953 by E. I. du Pont de Nemours & Company, Inc.
•   Polyester is the most used man-made fiber in the U.S.


    Name of Fiber                  
Triacetate
    Eastiblished Date                  
1954
    Historical Bacground                
•   The first commercial production of triacetate fiber in the United States was in 1954 by the Celanese Corporation.
•   Domestic Triacetate production was discontinued in 1985.



    Name of Fiber                  
Spandex
    Eastiblished Date                  
1959
    Historical Bacground                
•   The first commercial production of spandex fiber in the United States was in 1959 by E. I. du Pont de Nemours & Company, Inc.
•   It is an elastomeric man-made fiber (able to stretch at least 100% and snap back like natural rubber).
•   Spandex is used in filament form.


    Name of Fiber                  
Polyolefin/
Polypropylene
    Eastiblished Date                  
1961
    Historical Bacground                
•   The first commercial production of an olefin fiber manufactured in the U.S. was by Hercules Incorporated.
•   In 1966, polyolefin was the world's first and only Nobel-Prize winning fiber.



    Name of Fiber                  
Micro-fiber
    Eastiblished Date                  
1989
    Historical Bacground                
•   The first commercial production of micro fiber in the U.S. was in 1989 by E. I. du Pont de Nemours & Company, Inc. Today micro fibers are produced in a variety of synthetic fibers (i.e. polyester, nylon, acrylic, etc.)
•   The true definition of a micro fiber is a fiber that has less than one denier per filament. Micro Fiber is the thinnest, finest of all man-made fibers. It is finer than the most delicate silk.
•   To relate it to something more familiar--A human hair is more than 100 times the size of some micro fibers.


    Name of Fiber                  
Lyocell
    Eastiblished Date                  
1993
    Historical Bacground                
•   The first commercial production of lyocell in the U.S. was in 1993 by Courtaulds Fibers, under the Tencel¬ trade name.
•   Environmentally friendly, lyocell is produced from the wood pulp of trees grown specifically for this purpose. It is specially processed, using a solvent spinning technique in which the dissolving agent is recycled, reducing environmental effluents.




24
Textile science, events, trade and issues / Way of Yarn Conversions
« on: January 06, 2012, 01:59:23 PM »
Various yarn numbering systems and conversion formulas and tables:


English/Metric Conversion Table: Length
                               Inch          Yard         Centimeter           Meter
    Inch                                       0. 278              2. 54                     0. 0254
    Yard                     36                                     91. 44                    0. 9144
   Centimeter       0. 3937       0. 011                                            0. 01
    Meter                39. 37         1. 094             100



English/Metric Conversion Table: Mass/Force
                                        Ounce        Pound       Gram     Centi-Newton        Newton
    Ounce                                             0.06237       28. 3495        27.783                    0.27802
    Pound                                            15. 96772      453. 6       444. 528                     4. 44528
    Gram                         0. 0353       0. 0022                                   0. 98                      0. 0098
    Centi-Newton          0. 035904   0. 002248        1. 02                                                  0. 01
     Newton                      3. 5904         0. 2248             102                 100



English/Metric Conversion Table: Saturated Steam Gauge Pressures
                                                          Pascal           Kilo-Pascal             Pounds per square inch
  Pascal(Pa)                                                                  0. 001                                         1. 45
  Kilo-Pascal(kPa)                             1000                                                                    0. 145
   Pounds per square inch(Psi)         6895                6. 895



English/Metric Conversion Table: Tenacity
                              gf/den            gf/tex      cN/tex       Rkm
    gf/den                                        9. 015        8. 838         9. 015
    gf/tex               0. 111              0. 9807         1
   cN/tex               0. 113                1. 02                             1. 02
    Rkm                0. 111                1             0. 9807      



Count Conversion Table
                             tex                     dtex                den                 Nm               NeC                     NeL
    tex                                               dtex/10          den/9             1000/Nm      590. 54/NeC        1653. 5/NeL
    dtex                 tex*10                                       den/0. 9         10000/Nm    5905. 4/NeC       16535/NeL
   den                   tex*9                  dtex*0.9                               9000/Nm        5314. 9/NeC     14882/NeL
    Nm                 1000/tex          10000/dtex     9000/den                              NeC*1. 6934       NeL*0.6048
    NeC              590. 54/tex       5905. 4/dtex   5314. 9/den    Nm*0. 5905                             NeL/2. 8
   NeL              1653. 5/tex        16535/dtex     14882/den    Nm*1. 6535     NeC*2. 8



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মোবাইলে সর্বশেষ ক্রিকেট স্কোর জানার জন্য অনলাইনে প্রচুর অ্যাপ্লিকেশন রয়েছে। এর মধ্যে বিনা মূল্যের 'ক্রিকেট কম্পানিয়ন' সফটওয়্যারটি বেশ জনপ্রিয়। সফটওয়্যারটি মোবাইলে ইনস্টল করলে একই সময়ে চলা সবকটি ম্যাচের লাইভ স্কোর এবং হাইলাইটস এতে একসঙ্গে দেখা যাবে। এ অ্যাপ্লিকেশনে আউট বা রান-সংক্রান্ত নোটিফিকেশন টোন শোনার সুবিধাও রয়েছে। বর্তমান ম্যাচগুলো দেখার পাশাপাশি সম্প্রতি শেষ হয়ে যাওয়া ম্যাচগুলোর হাইলাইটসও পাওয়া যাবে এতে। এখানে পরবর্তী ম্যাচের শিডিউল এবং ভেন্যু-সংক্রান্ত তথ্যও পাওয়া যাবে।

সফটওয়্যারটি প্রথমে নিচের লিঙ্ক থেকে কম্পিউটারে ডাউনলোড করে নিতে হবে। এরপর মোবাইলে ইনস্টল করে ইন্টারনেট সংযোগ নিশ্চিত করতে হবে। যাঁরা কম ব্যান্ডউইথের ইন্টারনেট ব্যবহার করেন তাঁরাও এটি নিশ্চিন্তে ব্যবহার করতে পারবেন। কারণ এতে খুব কম পরিমাণ ব্যান্ডউইথ প্রয়োজন হয়। জাভা প্লাটফর্মের অ্যাপ্লিকেশন হওয়ায় প্রায় সব ধরনের মাল্টিমিডিয়া মোবাইল ফোনেই এটি সমর্থন করে।
কম্পিউটার থেকে ডাউনলোডের পাশাপাশি মোবাইল ফোন থেকেও সরাসরি সফটওয়্যারটি ডাউনলোড করা যাবে। এ জন্য মোবাইল ব্রাউজার থেকেm.getjar.com-এ যেতে হবে। এবারে পেইজের ওপর থেকে Quick Download নির্বাচন করতে হবে। একটি কোডবঙ্ আসবে, সেখানে ৪৭৩৫৮ চাপতে হবে।

ডাউনলোড করুন এখান থেকে
http://www.getjar.com/mobile/47358/cricket-companion----live-cricket-scores-for-nokia-5230/?ref=0&lvt=1322901189&sid=au7h00gv9xqyo4qo&lang=en&o=comments&c=ljdye5v3gzy5mk3r00

26

বিশ্বজুড়ে এফএম এবং অনলাইন রেডিওর জনপ্রিয়তা এখন তুঙ্গে। তবে আমাদের দেশে হাতেগোনা কয়েকটি শহরেই শুধু এফএম রেডিও শোনার সুযোগ আছে। তাই এফএম শোনার সুযোগ নেই এমন এলাকায় অনলাইন রেডিও দ্রুত জনপ্রিয়তা পাচ্ছে। কিন্তু এখানেও ঝক্কি! রেডিও শোনার জন্য তো আর সারাক্ষণ কম্পিউটারের সামনে বসে থাকা যায় না। এ ক্ষেত্রেও উপায় আছে। 'ভার্চুয়াল রেডিও' সফটওয়্যারটি জাভা সমর্থক মোবাইলে ডাউনলোড করে নিলেই হলো। এতে আমাদের দেশের বেশ কয়েকটি বাংলা অনলাইন রেডিও চ্যানেল শোনার সুযোগ রয়েছে। তাই চলতে চলতে, যখন-তখন শুনতে পারবেন এসব চ্যানেল। এ ছাড়া হিন্দি, ইংরেজিসহ অন্যান্য ভাষায় প্রচারিত কয়েক শ রেডিও চ্যানেল শোনার ব্যবস্থা রয়েছে সফটওয়্যরটিতে। মাত্র ৩২ কেবিপিএস স্পিডের ইন্টারনেট সংযোগ থাকলেই সফটওয়্যারটির মাধ্যমে রেডিও শোনা যাবে। মোবাইল অপারেটর দেওয়া ইন্টারনেট সংযোগ ছাড়াও ওয়াইফাই ইন্টারনেটে এটি চালানো যাবে।
সফটওয়্যারটির সবচেয়ে বড় সুবিধা হলো_এটি জাভা প্লাটফর্মে তৈরি করা। প্রায় সব ধরনের মাল্টিমিডিয়া এবং স্মার্টফোনেই জাভা প্লাটফর্মের স্থায়ী (ডিফল্ট) সমর্থন থাকে। সফটওয়্যারটি ডেটা কমেপ্রস করেও অনেক ভালো মানের শব্দ দিতে পারে। সিমবিয়ান ব্যবহারকারীদের জন্যও এর আলাদা একটি সংস্করণ রয়েছে। জনপ্রিয় রেডিও চ্যানেলগুলো গ্রুপ আকারে সফটওয়্যারটিতে সংগ্রহ করে রাখার সুবিধা রয়েছে। এটি বিনা মূল্যে ডাউনলোড করা যাবে।

;) ডাউনলোড করুন 
http://www.getjar.com/mobile/16507/virtualradio-for-nokia-%2070

27
মোবাইল ফোন নিয়ে হরেক রকম বিপত্তিতে পড়তে হয়। তবে কিছু উপায় জেনে রাখলে এসব ঝামেলা থেকে মুক্তি পাওয়া যায়।

এক
ইমার্জেন্সি নম্বর
মোবাইল ফোনের জন্য ১১২ নম্বরটি বিশ্বজনীন ইমার্জেন্সি। আপনি যদি নিজেকে মোবাইল ফোন অপারেটরের নেটওয়ার্কের বাইরে আবিষ্কার করেন তাহলে এই নম্বরে ডায়াল করুন। আপনার মোবাইল ফোনটি স্বয়ংক্রিয়ভাবে তার পাশের যেকোনো নেটওয়ার্কের সঙ্গে ইমার্জেন্সি কল স্থাপন করবে। মজার ব্যাপার হলো, আপনার হ্যান্ডসেটের কি-প্যাড লক করা থাকলেও ১১২ নম্বরে ডায়াল করা যাবে। একবার চেষ্টা করে দেখুন।

দুই
এঙ্ট্রা ব্যাটারি পাওয়ার
আপনার মোবাইল ফোনসেটের ব্যাটারি একদম শেষ? *৩৩৭০# চাপুন। এতে আপনার মোবাইল ফোনসেটটি এর রিজার্ভ থেকে প্রায় ৫০ শতাংশ ব্যাটারি পাওয়ার নিয়ে রিস্টার্ট হবে। পরবর্তী চার্জের সময় এই রিজার্ভটি আবার চার্জ হবে।

তিন
চুরি হয়ে যাওয়া মোবাইল ফোনসেট নিষ্ক্রিয় করা
আপনার মোবাইল ফোনসেটের সিরিয়াল নম্বর চেক করার জন্য *#০৬#-এ ডায়াল করুন। একটি ১৫ সংখ্যার কোড মোবাইল ফোনসেটের পর্দায় ভেসে উঠবে। এটি আপনার মোবাইল ফোনসেটের ইউনিক কোড নম্বর। নম্বরটি সংরক্ষণ করুন। ফোন চুরি হয়ে গেলে আপনার অপারেটরকে এই নম্বরটি বলে দিলে তারা আপনার সেটটি এমনভাবে নিষ্ক্রিয় করে দেবে যে চোর নতুন সিম লাগালেও তা আর সচল হবে না। আপনি হয়তো আপনার সেটটি কোনো দিনই ফেরত পাবেন না, কিন্তু এটি নিশ্চিত যে অন্য কেউ আপনার সেটটি ব্যবহার বা বিক্রি করতে পারবে না।

"Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning." --- Albert Einstein

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