Why Does February Only Have 28 Days??

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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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Sailing Stones....

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Sailing stones , also known as  sliding rocks ,  walking rocks ,  rolling stones , and  moving rocks , are a  geological phenomenon  where rocks move and inscribe long tracks along a smooth valley floor without human or animal intervention. Instead, rocks move when large ice sheets a few millimeters thick floating in an ephemeral winter pond start to break up during sunny days. These thin floating ice panels, frozen during cold winter nights, are driven by wind and  shove  rocks at up to 5 m/min. Trails of sliding rocks have been observed and studied in various locations, including Little Bonnie Claire Playa in Nevada,and most famously at  Racetrack Playa ,  Death Valley National Park , California, where the number and length of tracks are notable. The Racetrack's stones speckle the playa floor, predominantly in the southern portion. Historical accounts identify some stones around 100 m (300 ft) from shore, yet most o...
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North America...

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North America  is a  continent  entirely within the  Northern Hemisphere  and almost all within the  Western Hemisphere ; it is also considered by some to be a northern  subcontinent  of the  Americas .  It is bordered to the north by the  Arctic Ocean , to the east by the  Atlantic Ocean , to the west and south by the  Pacific Ocean , and to the southeast by  South America  and the  Caribbean Sea . North America is the fourth-most-populous continent (579,024,000) in the world. Area:   24,709,000 km 2 (9,540,000 sq mi) Population:   579,024,000 (2016) Population Density:   22.9/km 2  (59.3/sq mi) Number Of Countries: 23 Biggest Country: Canada Smallest Country:  Saint Kitts and Nevis  Highest Point:  Mount McKinley Lowest Point:  Badwater Longest River:   Missouri river Largest Lake:  Lake Superior Countries...
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