Average Life Span for $1, $5, $10, $20, $ 50 and $100 Depend on its Denomination

Have you wonder what is the average life span of U.S Dollar bill?  Well, in this blog entry I am about to present this information. I know it is not something you should be caring about or feel the need to know this info but there’s nothing wrong learning something new! So, the average life span of $1, $5, $10, $ 20, $50 and $100 depending upon its denomination: 

·         $1 : 21 months

·         $5: 16 months

·         $10: 18 months

·         $20: 2 years

·         $50: 4.5 years

·         $100: 7.5 years

"6 Things You Don't Know about the Dollar." MSNMoney. N.p., n.d. Web. 28 Dec. 2013 .http://money.msn.com/investing/6-things-you-dont-know-about-the-dollar

Who Discovered Electricity?

If you think that Benjamin Franklin discovered electricity then you may want to read this blog entry because he did not discover electricity. Well, Benjamin Franklin discovered electricity in the lightening through flying his kite. So who’s discovered electricity?

 To find the answer, we need to go back at least 2000 years. According to many historical accounts, we have learned that the know history of electricity goes back to 620-550 BC, when in ancient Greece, they discovered electricity by rubbing fur on amber, which caused attraction the two.This awesome discovery was credited to philosopher Thales of Miletos (He was the first known Greek philosopher, scientist and mathematician). 

 In 1600, English physician William Gilbert   first made the connection between the attraction of oppositely charged object and magnetism. He named it “electric” from the Greek word “Elecktron”, which means amber. 

By the 17th century, many electricity related experiments and discoveries took place, such as, invention of first generator, difference between (+) and (– )charges and so on.

In 1750 Benjamin Franklin discovered the fact that lightning was caused by electricity.

 Key Points:
1.  Electricity discovered at least 2000 years ago through fur rubbing amber
2. William Gilbert first coined the term " electricity" in 1600
3. Lots of electricity experiments occurred by 17th century, such as positive and negative, generator, etc.
4. Benjamin Franklin discovered electricity in lightning though his flying kite in 1750
                                                 Related Video
    

        Source: http://www.universetoday.com/82402/who-discovered-electricity/

        http://www.wisegeek.org/who-discovered-electricity.htm

4 (Four) LEAST Corrupted Countries in the World

When you read or watch news you come across many news about countries being corrupted or have been so corrupted. Well, that is not surprising at all because human nature is very complicated; combination of good and bad. Some people volunteer, donate, even risk their lives for others while others won't  hesitate to kill somebody for something

that might be less than a dollar, that is just ugly! So what are the  LEAST corrupted countries in the world? Here are the 4 (four) countries known to be least corrupted: 
According to Transparency International's 2013 Corruption Perception Index, Denmark, New Zealand, Finland, and Sweden are the least corrupted countries in the WORLD!  
  

Source: Kelly, Micheal. "The Four Least Corrupt Countries In The World." Business Insider. N.p., 03 Dec. 2013. Web. 27 Dec. 2013.

World's Tallest Building

Many of you already know that Burj Khalifa is the world TALLEST tower that world has ever seen.  It is a stunning work of art integrated with sophisticated engineering. Today, I would like to share some facts of Burj Khalifa, which might blow your mind! Let’s take a look some of the facts: 

Where is it?

Dubai, United Arab Emirates

When its construction started and completed?

Construction started in January, 2004 and completed in January 2010.

How much it cost to build it?

1.5 Billion Dollars*

Who’s the Burj Khalifa’s Architect?

Adrian Smith

What is the total height?

Over 828 meters or 2717 Feet.

How many floors?

It has 163 floors

How many workers are needed to clean its window?

It takes a team of 36 cleaners and spend 4 months to clean Burj Khalifa’s over 24347 windows!^{^} 

Other Facts¹: 

• Tallest free-standing structure in the world
• Highest number of stories in the world
• Highest occupied floor in the world
• Highest outdoor observation deck in the world
• Elevator with the longest travel distance in the world
• Tallest service elevator in the world

Also check out this coolest picture! I love it. It shows human fascination for building magnificent structure started long time ago. Think about the Pyramids in Egypt!

Source: 

*Stanglin, Doglas. "Dubai Opens World's Tallest Building." USA Today. Gannett, 01 Jan. 2010. Web. 29 Oct. 2013. 

^ Malkin, Bonnie, January, 5th, 2010, “Burj Khalifa: window cleaners to spend months on world’s tallest building”

1. http://www.burjkhalifa.ae/en/

Who Developed Area Codes in North America?

The area codes actually amazing! Never knew who develop this system until today. The area codes system was developed by AT&T and Bell Laboratories in 1940s and becomes effective in 1947 and people started using it in 1950's*. it was called North American Numbering Plan (NANP). 

In 1947, United States and provinces that had area code we assigned three digit codes with 0 as middle number, such as 305 for Florida, 205 for Alabama, 303 for Colorado etc*. 
The first and 3rd digits were decided according to population density in the city or region*. The most populated arrears getting the lowest numbers. For example, New York City area, was assigned 212, while the surrounding suburbs were 315, 518, and 914 and so on. 

Related Video 

Source: http://www.area-codes.com/area-code-history.asp

Who Discovered Blood Types?

Blood transfusion definitely saves life lots of life. However, many patients from all around the world died until 1901.

Who: Austrian physician and Scientist, Karl Landsteiner discover human blood group! He published a paper dealing his discovery of the three main human blood groups: A, B, and C, which he later changes to O. His contributions spanned many areas of immunology, bacteriology and pathology over a prolific 40 year career.

First Successful Blood Transfusions..

In 1907 the first successful transfusions were achieved by Dr. Reuben Ottenberg of Mt. Sinai Hospital, New York, guided by Landsteiner's work.

Karl Landsteiner's work made it possible to determine blood groups and thus paved the way for blood transfusions to be carried out safely. For this discovery he was awarded the Nobel Prize in Physiology or Medicine in 1930*.

 

Related Video

Source:  Gates, Sara. "World Happiness Report 2013 Ranks Happiest Countries Around Globe."The Huffington Post. TheHuffingtonPost.com, 09 Sept. 2013. Web. 15 Oct. 2013* Blood Groups, Blood Typing and Blood Transfusions." Blood Groups, Blood Typing and Blood Transfusions. N.p., n.d. Web. 15 Oct. 2013

Happiest Countries in the world by 2013

Guess which countries are the happiest countries in the world by 2013?  According to 156-nation survey published by the United Nations Sustainable Development Solutions Network, Denmark, Norway and Switzerland are the happiest countries in the world!

Among North American Countries, Canada ranks in 6^th place while Mexico 16^th and U.S 17^th! 

Source: Gates, Sara. "World Happiness Report 2013 Ranks Happiest Countries Around Globe." The Huffington Post. TheHuffingtonPost.com, 09 Sept. 2013. Web. 15 Oct. 2013.