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Monday, May 25, 2009

What is tropic of cancer ?

The farthest northern latitude at which the sun can appear directly overhead, which occurs on the June solstice. North of this line is the subtropics and Northern Temperate Zone. The Tropic of Capricorn is at the opposite latitude south of the Equator. South of the Tropic of Cancer and north of the Tropic of Capricorn are the Tropics. The center line is called Equator.


What is an atomic clock?

Atomic clock is a special type clock that shows almost accurate time. Atomic clock maintains continuous and stable time scale. the first model of atomic clock was build on 1949 by the U.S National Bureau of standards. First successful atomic clock was designed on 1955 in UK by National physical laboratory. A chip scale atomic clock designed in august 2004 by NIST scientists. Chip type atomic clock consumes only 75 mw current. Major application of atomic clocks are to generate standard frequency and serve time signals to time signal sites. They also installed at navigation transmitters and broadcasting stations. By the help of this atomic clock signals broadcasting stations produces accurate carries frequency. GPS navigation systems base signals are also from atomic clock.


Sunday, May 24, 2009

How to download youtube videos to your computer?

Every one knows about youtube,  we can search and watch a youtube video when the computer is connected to internet. without connected online we cant see a video in youtube unless its streamed.
whats the remedy for it. To watch your favorite youtube video in offline  just download this software and paste the url of your youtube video and download it to your computer. 

Watch youtube videos offline with this software


Saturday, May 23, 2009

How many languages are in the World?

When people are asked how many languages they think there are in the world, the answers vary quite a bit. One random sampling of New Yorkers, for instance, resulted in answers like “probably several hundred.” However we choose to count them, though, this is not close. When we look at reference works, we find estimates that have escalated over time. The 1911 (11th) edition of the Encyclopedia Britannica, for example, implies a figure somewhere around 1,000, a number that climbs steadily over the course of the twentieth century. That is not due to any increase in the number of languages, but rather to our increased understanding of how many languages are actually spoken in areas that had previously been underdescribed. Much pioneering work in documenting the languages of the world has been done by missionary organizations (such as the Summer Institute of Linguistics) with an interest in translating the Christian Bible. As of 1997, at least a portion of the Bible had been translated into 2,197 different languages, still a long way short of full coverage. The most extensive catalog of the world’s languages, generally taken to be as authoritative as any, is that of the Ethnologue organization
(, whose detailed classified list currently includes 6,809 distinct languages.


Thursday, May 21, 2009

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How "Ida" named new fossil help the study about human origins?

Ida is a new fossil found in Germany that will help to created a good media attention and will likely continue to make waves among those who study human origins.

 The paleontologist team that analyzed the 47-million-year-old fossil seen above, suggests Ida is a critical missing-link species in primate evolution. This fossil, reduces the gap between higher primates (monkeys, apes, and humans) and their more distant relatives such as lemurs. 


Tuesday, May 19, 2009

What is Casimir force?

When two uncharged metals are kept micrometers away from each other in a vaccum. There is a quantum force betwen them (repulsion or attraction) depending upon the arrangement of the metals. The repulsion properties of casimir force can be used in levitationg micro objects. Casimir force is very significant in nanotechnology as this helps to reduce the friction between submicromillimeters parts. Since this force is created in vaccum It is also described as force from nothing.


What is AVATAR and where does that word came from?

Avatar is a word came from Hindu vedas. Avatar means incarnation mostly from an upper spiritual being (God) to a lower spiritual being (Human), also posses supernatural powers mainly objected for a special purpose.Avatar is mainly connected with Vishnu one of the three main Gods of Hinduism. Dasavataram denotes ten avatars of Vishnu in the world for certain purposes. The tenth avatar KALKI is believed to be in our Living age and yet to come.


Sunday, May 17, 2009

Latest movie news


Sunday, May 3, 2009

What Is Biogas?

Biogas is a mixture of carbon dioxide, methane and some other gases. It is produced by some kinds of microorganisms, usually when air or oxygen is absent. (The absence of oxygen is called “anaerobic conditions.”) Animals that eat a lot of plant material, particularly grazing animals such as cattle, produce large amounts of biogas. The biogas is produced not by the cow or elephant, but by billions of microorganisms living in its digestive system. Biogas also develops in bogs and at the bottom of lakes, where decaying organic matter builds up under wet and anaerobic conditions.

How to build a biogas generator  Visit: