Top 10 most Famous Revolvers.......

A revolver is a repeating firearm containing a cylinder with many chambers. As the hammer is cocked the cylinder rotates to align the next chamber round with the hammer and the barrel. It is from this action that the revolver gets its name. Let’s look at the world’s most famous revolvers.

1. The Peacemaker colt

The Colt single action army or the Peacemaker is the most famous handgun in history as it is the gun that won the west. It was built by the Colt Manufacturing Company of America and was in service with the US government from 1873 to 1892. . It fires a .45 Colt cartridge and has a six shot cylinder.

2. Webley Mk6

The Webley revolver is of British origin and is manufactured by the Webley & Scott Company and RSAF Enfield.

It is a top break revolver firing a .455 Webley cartridge, has a rate of fire of 20-30 rounds per minute and has an effective range of 50-300 yds.

3. 38 Special Revolver

The .38 Smith & Wesson Special is of American parentage and was manufactured by the Smith & Wesson Company. It fires a rimmed centerfired cartridge (the .38 Special) .and weighs approximately 10 ounces , has an overall length of 8 inches and a capacity for 6 rounds.

4. Smith & Wesson .44 Magnum Model 629

This revolver is of American origin and fires the .44 Magnum cartridges made famous by Clint Eastwood in his Dirty Harry films. . It has a double action and a six round cylinder and has a 3 dot adjustable rear sight.

5. Smith & Wesson model 686

This revolver is of American origin and fires the .357 Magnum cartridges. This cartridge was developed to penetrate automobile cover during the post World War 1 gangster era in the US. The revolver went into production in the 1980’s. It weighs 1.25 Kg is fed by a 6 or 7 round cylinder and has a length of 12 inches.

6. Smith and Wesson Model 10 Victory

This revolver of American origin was in use by the US forces during World War 2 and fires the .38 Special cartridges. It is fed by a 6 round cylinder and has a muzzle velocity of 755 ft per second.  It has a blade front sight and a notched rear sight.

7. Smith &Wesson  Model 500

The Smith & Wesson model 500 is a five shot double action revolver of American parentage. It is built on the Smith & Wesson’s largest frame the X frame and is cited by its manufacturers of being the ‘most powerful production revolver in the world ‘The model 500 fires a bullet weighing 350 gm at a muzzle velocity of 1975 ft per second.

8. Colt Python

The Colt Python is a double action hand gun chambered for the powerful .357 Magnum cartridge. It is of American origin and is manufactured by the Colt Manufacturing Company of Hartford, Connecticut. It is built on  the Colt large’ I’ frame and is renowned for smooth trigger pull, accuracy and tight cylinder lock up.. It was in production from 1955-1996

9. Webley Fosbery Automatic Revolver

The Webley Fosbery Automatic revolver is of British parentage and is manufactured by Webley Scott. . In this revolver the hammer is cocked and the cylinder rotated by sliding the action, cylinder and barrel assembly back on the frame. It fires a .455 Webley Mk2 cartridge and has a muzzle velocity of 620 ft per second.

10. Ruger Super Redhawk

The Ruger Super Redhawk revolver is of American origin and is a double action Magnum revolver made by Sturm Rogers.  It has a weight of 1190 grams and a length of 8.5 inch. It is an example of a revolver having a swing out cylinder.

world's best handguns.........

The term handgun usually means a gun meant to be operated by one hand and having a chamber which is integral to the barrel as opposed to the other type of handgun, the revolver, which has a revolving cylinder.

1. Glock-17

Glock is a series of semi automatic pistols designed and produced by Glock GmbH of Deutsh-Wagram, Austria. It has been in service since 1982. It has an extensive plastic structural content. It has a short recoil locked breech; tiliting barrel action fires amongst others a 9x 19mm Parabellum cartridge is used by the Austrian military and US Law Enforcement agencies. Glock pistols have become the most profitable line of products, taking up 65% of the market share of handguns in the United States, in spite of preliminary opposition from the market due to strength and reliability concerns.

2. Smith & Wesson .500 S&W Magnum

This company is the largest manufacturer in the United States. Their guns are used in many Hollywood films such as Clint Eastwood’s Dirty Harry. The .500 S&W Magnum is considered the best commercial sporting handgun cartridge by the muzzle energy it makes. The gun is a double action revolver, which provide clients with power and velocity. No gun has been able to imitate this. However, due to high recoil, it is not for novices and should be used with caution.

3. FN Herstal FNP-9

This semi-automatic and polymer-framed pistol is part of a series made in the United States. The trigger is unique, wide and smooth, unlike many polymer guns. The reset furthermore is short and different. This makes the gun simple and accurate to use. Magazine capacity for the 9mm is 16 rounds in the magazine and one in the tube.

4. Beretta 92

The Beretta 92 is of Italian origin. It fires a 9x19mm Parabellum cartridge. It has been in production since 1975 and is in service in the Italian, French and US military. The Beretta 92′s open slide design guarantees even feeding and discharge of bullets and allows easy clearing of obstacles.

5. Walther P99

The Walther P99 is a semi automatic pistol of German origin. It is manufactured by Carl Walther GmbH Sportwaffen… It is used by the German police, Polish police and the Finnish army. .It fires a 9x19mm Parabellum cartridge. And has short recoil operated, locked breech action. It has a muzzle velocity of 1339ft per second.

6. QSZ -92

The QSZ -92 is recoil operated locked breech pistol and uses a rotating barrel locking system. Its country of origin is The Peoples Republic of China. It uses a 9x19mm Parabellum cartridge and is manufactured by Norinco at the Changfeng Machine Shop. It has an effective range of 50m and has a muzzle velocity of 1148 ft per second.

7. M1911 pistol

This is a single-action and semi-automatic handgun created by John M. Browning. It was used by the US army from 1911 and 1985, especially during WWI, WWII and the Korean and Vietnam Wars. It has now risen to become the finest type of the 20th century; making it popular among civilian shooters in competitive events.

8. Mark 23

The Heckler and Koch Mk23 are of German and United States origin and consist of match grade semi automatic pistol, a laser aiming module and suppressor. It is the standard pistol meant for the US Special Forces. It has a short recoil DA\SA action and has an effective range of 50 Ms. It has been in production since 1991 and comes with a 12 round detachable box magazine.

9. HS2000/XD

The HS 2000 is of Croatian origin and is produced by HS Produkt D.o.o. The company’s most successful product HS2000 is a polymer framed semi automatic pistol. It is the standard issue of the Croatian army and is popular amongst the US law enforcement agencies. Furthermore there is grip safety that prevents the pistol from firing without depressing a lever at the back of the grip.

10. SIGP250

The SIG P250 pistol is of mixed American and German origin. It is made by JP Sauer and Son and Sig Sauer Exeter. It is a semi automatic pistol. .whose action is based on recoil operation and comes with a 17 round magazine. It has iron sights with a 147 mm base.

Top 10 most powerful brands

These brands are powerful because they are both financially strong as well as popular among consumers.

1. Google

This brand is valued at about 66 billion dollars and is undoubtedly the most powerful brand in the world. This search engine was started by Sergey Brin and Larry Page in 1996. Google is known for its unique innovations and mind-boggling growth rate. Google has become so big that the term is now in the dictionary.

2. General Electric
General Electric has been valued at about 61 billion dollars which makes it the second most powerful in the world. GE looks into a number of spheres including industrial technology, information technology, financial services, oil, films and much more. GE is very popular in India as well.

3. Microsoft

Microsoft Corporation earns about 44 billion dollars on a yearly basis and its brand value is about 54 billion dollars. Bill Gates owns the brand and founded it in 1975. Microsoft provides employments to over 75,000 people across the globe and Gates is both feared and admired by competitors.

4. Coca-Cola

This brand has been valued at approximately 44.134 billion dollars which makes it the fourth most powerful in the world. The company was incorporated in 1892 by Asa Griggs Candler. It was later bought by Woodruff and Bradley. While it may not be the most powerful in the world, it is definitely the most well-known.

5. China Mobile

The brand has been valued at about 41 billion dollars and is the country’s largest mobile operator. It has over 290 million subscribers and its turnover is almost as much as Vodafone year after year. China Mobile is extremely popular in Hong Kong and is the largest there.

6. Marlboro

Marlboro is worth about 39 billion dollars and is undoubtedly the most popular cigarette brand in the world. The brand has monopolized the industry with its famous billboard and magazine advertisements.

7. Wal-Mart

This brand’s value has been estimated at about 36 billion dollars. Wal-Mart is the largest retailer in the United States of America and sells the largest number of toys in the country as well. It was founded in 1962 by Sam Walton and became a part of the stock exchange 10 years later. The company is now owned by his widow, his daughter and three sons.

8. Citi

Citi has a brand value of about 33 billion dollars and was formed in 1998 after a 140 billion dollar merger. This company was taken over in 1993 by Primerica and is world renowned for being the first- automobile policy, space travel policy as well as commercial airline policy. The company’s name changed to Citibank during the 1970s and Charles Prince is the CEO today.

9. International Business Machines Corporation

Also known as IBM, this multination company deals with computer technology. It has its headquarters in New York and has about 350,000 employees all over the world. IBM was established during the latter half of the 1880’s and became a part of the stock exchange after 1915.

10. Toyota

Toyota’s brand value is about 33 billion dollars, making it the 10^th most powerful in the world. It is a Japanese company and the world’s largest automobile manufacturer of buses, automobiles, robots and trucks. It has its headquarter in Aichi and generated about 179 billion dollars in terms of revenue during 2006. The present chairman is Fujio Cho and Katsuaki Watanabe is the CEO of the company.

Why Einstein's Brain was Different?

Was Einstein's Brain Different?
Of course it was-people's brains are as different as their faces. In his lifetime many wondered if there was anything especially different in Einstein's. He insisted that on his death his brain be made available for research. When Einstein died in 1955, pathologist Thomas Harvey quickly preserved the brain and made samples and sections. He reported that he could see nothing unusual. The variations were within the range of normal human variations. There the matter rested until 1999. Inspecting samples that Harvey had carefully preserved, Sandra F. Witelson and colleagues discovered that Einstein's brain lacked a particular small wrinkle (the parietal operculum) that most people have. Perhaps in compensation, other regions on each side were a bit enlarged-the inferior parietal lobes. These regions are known to have something to do with visual imagery and mathematical thinking. Thus Einstein was apparently better equipped than most people for a certain type of thinking. Yet others of his day were probably at least as well equipped-Henri Poincaré and David Hilbert, for example, were formidable visual and mathematical thinkers, both were on the trail of relativity, yet Einstein got far ahead of them. What he did with his brain depended on the nurturing of family and friends, a solid German and Swiss education, and his own bold personality. 
A late bloomer: Even at the age of nine Einstein spoke hesitantly, and his parents feared that he was below average intelligence. Did he have a learning or personality disability (such as "Asperger's syndrome," a mild form of autism)? There is not enough historical evidence to say. Probably Albert was simply a thoughtful and somewhat shy child. If he had some difficulties in school, the problem was probably resistance to the authoritarian German teachers, perhaps compounded by the awkward situation of a Jewish boy in a Catholic school.