The cornea is the only organ in the human body that has no blood supply. It gets oxygen directly from the air....

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Greenland - Earth's Largest Island!

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Greenland is the  world's largest island . It has a population of only 50,000 residents, because of its cold climate. Most of the civilian population lives in the southern part of the island, on the coasts.  The capital of Greenland is  Nuuk . The island is the least  densely populated   country in the world, with a density of 0.26 people per square kilometer. In Greenland, there are no  forests . In the south, at the  coastal  area, only some dwarf trees are found. Greenland  is a Danish-occupied territory of  Denmark , but Greenland is not a member of the  European Union . It is part of the North American continent. The island has many mountains. All of the cities are on the coast, because everywhere else is covered by a big layer of ice.   The name of the country in the indigenous  Greenlandic language  is  Kalaallit Nunaat  ("land of the Kalaallit")   The  Kalaallit ...
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All about JUPITER...

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Jupiter is the largest planet in the solar system. It is approximately 143,000 kilometers (about 89,000 miles) wide at its equator. Jupiter is so large that all of the other planets in the solar system could fit inside it. More than 1,300 Earths would fit inside Jupiter. Jupiter  is the fifth  planet  from the  Sun  and the  largest  in the  Solar System . Jupiter is primarily composed of  hydrogen  with a quarter of its mass being  helium , though helium comprises only about a tenth of the number of molecules. It may also have a rocky core of heavier elements, but like the other giant planets, Jupiter lacks a well-defined solid surface. Surrounding Jupiter is a faint  planetary ring  system and a powerful  magnetosphere . Jupiter has at least  69 moons , including the four large  Galilean moons  discovered by  Galileo Galilei  in 1610.  Ganymede , the largest of these, has a d...
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Australia: The Smallest Continent In The World...

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Australia  is the smallest of the seven  continents . The smallest continent in the world, called Australia and Oceania, is surrounded by the Indian, Southern and Pacific Oceans. It includes the entire Australian mainland, such big islands as New Zealand, Tasmania, New Guinea (only its eastern half), and many thousands of tiny, tropical islands of Melanesia, Micronesia and Polynesia regions, scattered throughout the South Pacific. Area:   8,600,000 km 2  (3,300,000 sq mi)  Population:  35,000,000 (estimated population of  Australia ,  Papua New Guinea ,  Papua  and  West Papua  for 2009) Population Density:   4.2/km 2  (11/sq mi) Number Of Countries:  3 Biggest Country:  Australia   Highest Point:  Mount Kosciuszko Lowest Point:   Lake Eyre Longest River:   River Murray Largest Lake:   Lake Eyre Countries in Australia and Oceani...
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