Everest 3G

In 2010,the Nepalese telecom compay Ncell brought wireless 3G internet and phone coverage to Mount Everst - its climbers,guides, and nearby villages.Since there is no electricity supply,the system's 10 base stations are powered by solar panels,with batteries for backup.The highest of the stations is17,060ft(5,200m)above sea level.

Blog fact

• Around 60% of bloggers are between the ages of 18 and 44 and more than 70% are male.
•  The World's most popular blogger is chinese writer and rally  var driven Han Han whose blog attracts more than 200 million visitors.
• 49% of total bloggers worldwide that are from the united states.
• An estimated 15% of bloggers spend 10 hours a week blogging.
• 77% of internet users who read blogs.
• An Australian woman often described as the world's oldest blogger has died at the age of 108 after posting a final message about her ailing health but how she sang "a happy song, as I do every day."
  she was in blog since since February 2007.

Face Book 2012

 

World Longest Caves - Mammoth cave

Mammoth Cave - Kentucky, USA

The Mammoth Cave is the longest underground system of labyrinths in the world. The Mammoth Cave is a place of beauty, mystery and paradox. It is now the realm of underground lakes and canyons, waterfalls and streams, narrow passages covered with a dome of large halls. Located 80 km from the city of Bowling Green, Kentucky cave contains one of the world's largest underground tunnels, so that is included in the UNESCO World Heritage List. The mysterious sinkholes, the underground caves, waterfalls and the formation of gypsum karst attract numerous visitors. No one yet knows the true size of the Mammoth Cave. The new cave passages constantly open up the border of this spectacular underground labyrinth extending deeper and deeper into the depths of the underworld. The Mammoth Cave is the longest in the world of the underground labyrinth system, if the second and the third longest cave in the world combined, it still would have remain the longest in the world with a margin of 160 km!

Mammoth cave complex which extends over 352 miles- about the distance from Los Angeles to San Francisco  - and has a maximum depth of 377 feet.

Crystal Cave

Crystal  Cave - Mexico

These Crystal daggers are as long as a bus! They were found by miners in 2000, around a thousand feet below the ground. They are part of the naica Mine in Mexico,which has other caves containing smaller-but still spectacular - crystal formations.