Thursday, April 26, 2007


A mountain is a landform that extends over the surrounding terrain in a restricted area. A mountain is usually steeper than a hill, but there is no commonly accepted normal definition for the height of a mountain or a hill though a mountain usually has an particular summit.

Mountains are normally given as heights over mean sea level. The Himalayas common 5 km above sea level, at the same time as the Andes average 4 km. Most other mountain average 2 – 2.5 km. The peak mountain on Earth is Everest, 8,848 m (29,028 feet), set in the world's most important mountain range, the Himalayas.

Sufficiently big mountains have especially different climatic conditions at the top than at the base, and will thus contain different life zones at different altitudes on their slopes. The plants and animals of a sector are somewhat lonely when the zones above and below are harsh, and many unique species take place on mountainsides as a result. Extreme cases are recognized as sky islands. Cloud forests are forests on mountain sides which be a focus for moisture from the air, creating a single ecosystem. Very tall mountains may be enclosed in ice or snow.

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Monday, April 23, 2007

Nuclear weapon

From nuclear reactions of fission or fusion nuclear weapon derives its destructive power. Even a single weapon is capable of destroying an entire city.

During the closing days of World War II nuclear weapons have been used twice and the first event was United States dropped uranium gun-type device code-named "Little Boy" on the Japanese city of Hiroshima on August 6, 1945. Three days later it dropped a plutonium implosion-type device code-named "Fat Man" on the city of Nagasaki.These events killed around 100,000 to 200,000 people and still it’s affecting the newborn –babies.

United States, Soviet Union, United Kingdom, France, People's Republic of China, India, Pakistan, and North Korea are the countries known to have detonated nuclear weapons.Iran attempting to develop nuclear capabilities, though its government claims that it’s acknowledged nuclear activities, such as uranium enrichment, is for peaceful purposes currently. Nuclear explosives have been used for various non-military uses also.

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Wednesday, April 18, 2007

Patrice Luzi

Patrice Luzi Bernardi is a French goalkeeper recently with Liverpool but released by the Anfield club in June 2005. He then signed a contract with Belgian side Mouscron.
Having previously played for Monaco and Ajaccio, Luzi made his Liverpool debut in January 2004 against Chelsea in a 1-0 win. He made two wonderful saves to deny Chelsea, but was left frustrated when he later was left out from the first team. His chances where limited when Liverpool loaned in Southampton's Paul Jones to cover from Jerzy Dudek and Chris Kirkland. Patrice Luzi has been described as a good shot stopper with good handling and distribution.
The SRBs are the largest solid-propellant motors ever flown and the first of such large rockets designed for reuse. Each is 149.16 feet long and 12.17 feet in diameter.

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Wednesday, April 11, 2007


An industry is generally any grouping of businesses that share a common method of generating profits, such as the music industry, the automobile industry, or the cattle industry. It is also used specifically to refer to an area of economic production focused on manufacturing which involves large amounts of capital investment before any profit can be realized, also called "heavy industry.As-of 2004, Financial services is the largest industry or category of industries in the world in terms of earnings.

Industry in the second sense became a key sector of production in European and North American countries during the Industrial Revolution, which upset previous mercantile and feudal economies through many successive rapid advances in technology, such as the development of steam engines, power looms, and advances in large scale steel and coal production. Industrial countries then assumed a capitalist economic policy. Railroads and steam-powered ships began speedily integrating previously impossibly-distant world markets, enabling private companies to develop to then-unheard of size and wealth. Manufacturing is a wealth-producing sector of an economy. Other sectors such as the service sector tend to be wealth consuming sectors. Following the Industrial Revolution, perhaps a third of the world's economic output is derived from manufacturing industries—more than agriculture's share.

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Sunday, April 01, 2007

Space Shuttle Solid Rocket Booster

The Space Shuttle Solid Rocket Booster is the rocket that provides 83% of liftoff thrust for the Space Shuttle. It is the largest and most powerful solid rocket ever flown, and the most powerful rocket motor of any type ever flown. Each SRB produces 1.8 times the liftoff thrust of the F-1 engine used in the Saturn V moon rocket.

The two reusable SRBs provide the main thrust to lift the Space Shuttle off the pad and up to an altitude of about 150,000 feet . In addition, the two SRBs carry the entire weight of the external tank and orbiter and transmit the weight load through their structure to the mobile launcher platform. Each booster has a liftoff thrust of approximately 2,800,000 lbf at launch. They are ignited after the three space shuttle main engines' thrust level is verified. The two SRBs provide 83 % of the thrust at lift-off. Seventy five seconds after SRB separation, SRB apogee occurs at an altitude of approximately 220,000 feet , after which they land on parachutes; impact occurs in the ocean approximately 122 nautical miles downrange, after which the two are recovered.

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