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WolframAlpha - Computational Knowledge Engine

Computational Knowledge Engine

Today I was googling to find comparison data between "India" and "USA". I wanted to know all the important data including demographics on a single page and in a comparison chart.

While trying to find some comparison result I browsed wikipedia and google for term "India vs USA". Then I came to know about a site "www.wolframalpha.com" which is in initial phase of their engine.

WolframAlpha is termed as "computational knowledge engine" by their developer and promoter. They have a very good knowledge base data which includes topics like:

  • Mathematics
  • Statistics
  • Physics
  • Chemistry
  • Materials
  • Engineering
  • Astronomy
  • Earth Sciences
  • Life Sciences
  • Computational Sciences
  • Units and Measures
  • Dates and Times
  • Weather
  • Places and Geography
  • People and History
  • Culture and Media
  • Music
  • Words and Linguistics
  • Sports and Games
  • Colors
  • Money and Finance
  • Socioeconomic Data
  • Health and Medicine
  • Food and Nutrition
  • Education
  • Organizations
  • Transportation
  • Technological World
  • Web and Computer Systems

So if you want to know about any particular word related to above topics, you can just type the word and hit enter button and you will see the all the necessary data in a tabular format.

WolframAlpha aims to collect and curate all objective data; implement every known model, method, and algorithm; and make it possible to compute whatever can be computed about anything. Our goal is to build on the achievements of science and other systematizations of knowledge to provide a single source that can be relied on by everyone for definitive answers to factual queries.

I tried for "India vs USA" and got the below data:

Demographics:
| India | United States
population | 1.21 billion people (world rank: 2nd) (2010) | 309 million people (world rank: 3rd) (2010)
population density | 408 people/km^2 (world rank: 29th) (2010) | 33.7 people/km^2 (world rank: 178th) (2010)
population growth | 1.44% per year (world rank: 95th) (2008) | 0.969% per year (world rank: 138th) (2008)
life expectancy | 69.9 years (world rank: 149th) (2009) | 78.1 years (world rank: 50th) (2009)
median age | 25.3 years (world rank: 132nd) (2009) | 36.7 years (world rank: 56th) (2009)
Economic:
| India | United States
GDP | $1.29 trillion per year (world rank: 11th) (2009) | $14.6 trillion per year (world rank: 1st) (Q2 2010 estimate)
GDP at parity | $3.827 trillion per year (world rank: 4th) (2009) | $14.6 trillion per year (world rank: 1st) (Q2 2010 estimate)
real GDP | $1.379 trillion per year (price-adjusted to year-2008 US dollars) (world rank: 12th) | $14.37 trillion per year (price-adjusted to year-2008 US dollars) (world rank: 1st)
GDP per capita | $1080 per person per year (world rank: 186th) (2009) | $46000 per person per year (world rank: 20th) (Q2 2010 estimate)
GDP real growth | +7.44% per year (world rank: 32nd) (2009) | +2.5% per year (world rank: 127th) (Q1 2010 estimate)
Gini index | 0.368 (world rank: 95th highest) (2005) | 0.408 (world rank: 69th highest) (2000)
consumer price inflation | +11.99% per year (world rank: 14th) (2010) | +1.64% per year (world rank: 143rd) (2010)
unemployment rate | 4.4% (world rank: 142nd highest) (2005) | 9.3% (world rank: 65th highest) (2009)

If you want you can download the complete data in "PDF format" by clicking on link on bottom of your search result page.

Similarily search for "Red", "America", "Tiger", "

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