Icebergs, damages caused by hails:
Whatís the iceberg?
Itís a very large block of ice, that broke and came off the ice floes, could glaciers; and itís swimming on the water. But it could from frozen sea-or fresh water.
Where can they be found?
On the polar areas.
What are their characteristics?
they are formed because of cold weather
They always melt and disappear
They are beautiful and dangerous
They endanger thousands of ships
Thereís more than 1 million square km ice in the world
Its 90 per cent is
under the water.
Itís stronger than the steel
Itís able to shatter a ship
The calving: separate from the block of ice
The newly separated blocks of ice are the most dangerous
* A swimming iceberg that was measured near the Antarctic in 1956; was bigger than all the territory of Belgium with its 31000 square km.
* The International Ice-observer Service was founded in 1914, the coast-guard has been watching them since then.
* The icebergs have already been observed after the Second World War, too; and today they can be given with centimetre-accuracy by satellites.
* Human observers throw measuring heads into the water every April to observe them.
* The ice-breaking ship is able to pass through the 10 metre-wide ice, too-it can be used for searching helicopters and life-savings.
What happened to the Titanic?
On 14th April, in 1912 there was a tragic event at latitude 41į north and longitude 50į west: the Titanic hit to an iceberg. The tragedy had more than 1500 victims. Now the wreck is lying in more than 3 kilometres depth.
o The most wonderful secrets of the world by Jinny Johnson and Dr. Philip Whitfield