GK - Earth Statistic & Seven Wonders of the world

Earth Statistic

Surface Area                             : 510,100,500 Sq.Kms.

Land Surface                            : 148,950,800 Sq.Kms. (29.08%)

Water Surface                           : 361,149,700 Sq.Kms. (70.92%)

Equatorial circumference           : 40,075 Kms.

Polar circumference                   : 40,008 Kms

Equatorial radius                       : 6,377 Kms.

Equatorial Diameter                   : 1,22,756 Kms.

Polar radius                              : 6,357 Kms.

Polar Diameter                          : 12,714 Kms.

Mean distance from the Sun      : 14,95,97,900 Kms.

Period of revolution                   : 365 days 5 hours 48 minutes  45.51 Sec.

Period of rotation                      : 23 hrs. 56 minutes. 4.091 Sec.

Escape Velocity from the earth : 11 Km per Sec. (minimum)

See How big are we here on Earth

Seven Natural Wonders of the world

1. Mount Everest, on the border of Tibet and Nepal.
2. The Nile River, Egypt.
3. Rio de Janeiro Harbour.
4. Iguassu Falls, Argentina.
5. Yosemite Valley and the Giant Sequioas of California.
6. The Grand Canyon, Colorado River, Arizona.
7. The Northern Lights, especially from Northern Canada and Alaska.

Seven Wonders of the Ancient World

1. The Pyramids of Khufu
2. The Hanging Gardens of Babylon
3. The Temple of Artem is at Ephesus
4. The Statue of Zeus at Olympia
5. The Mausolus at Halicarnassus
6. The Colossus of Rhodes
7. The Pharos (Lighthouse) at Alexandria

Seven Wonders of the Medieval World

1. The Colosseum of Rome
2. The Great Wall of China
3. The Porcelain Tower of Nanking, Cahina
4. The Mosque at St.Sophia (Constantinople)
5. The Stonehenge of England
6. The Catacombs of Alexandria
7. The Leaning Tower of Pisa

Seven Wonders of Today

1. The Taj Mahal of Agra, India.
2. The Great Pyramid of Egypt and the adjacent Great Sphinx of Gizeh.
3. Hagia Sophia, 6th Century, in present day Istanbul.
4. Leaning Tower of Pisa, Italy.
5. The Eiffel Tower, Paris.
6. The Washington Monument, Washington.
7. The Empire State Building, New York City.