cool wallpapers: May 2011

Friday, 27 May 2011

University Of leeds

University Of Leeds
The University of Leeds (informally Leeds University, or simply Leeds) is a British Redbrick university located in the city of Leeds, West Yorkshire, England. Originally named The Yorkshire College, a successor to the Leeds School of Medicine, it became part of the Victoria University alongside Owens College (which eventually became the University of Manchester) and University College Liverpool (which became the University of Liverpool). In 1904, a royal charter was granted to the University of Leeds by King Edward VII.

Leeds University

Posted By Cyberstorm

Kate Middleton

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Monday, 23 May 2011

MI-8 Helicopter

MI-8 Gunship

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Apache Helicopter

Apache Helicopter
The Apache helicopter is a revolutionary development in the history of war. It is essentially a flying tank -- a helicopter designed to survive heavy attack and inflict massive damage. It can zero in on specific targets, day or night, even in terrible weather. As you might expect, it is a terrifying machine to ground forces.
At its core, an Apache works pretty much the same way as any other helicopter. It has two rotors that spin several blades.

In this article, we'll look at the Apache's amazing flight systems, weapons systems, sensor systems and armor systems. Individually, these components are remarkable pieces of technology. Combined together, they make up an unbelievable fighting machine -- the most lethal helicopter ever created.

At its core, an Apache works pretty much the same way as any other helicopter. It has two rotors that spin several blades. A blade is a tilted airfoil, just like an airplane wing. As it speeds through the air, each blade generates lift.

The main rotor, attached to the top of the helicopter, spins four 20-foot (6-meter) blades. The pilot maneuvers the helicopter by adjusting a swash plate mechanism. The swash plate changes each blade's pitch (tilt) to increase lift. Adjusting the pitch equally for all blades lifts the helicopter straight up and down. Changing the pitch as the blades make their way around the rotation cycle creates uneven lift, causing the helicopter to tilt and fly in a particular direction.

Apache Helicopter

Posted By: Cyberstorm

Wednesday, 18 May 2011

Khana Kaaba

Al-Masjid al-Haram ("The Holy Mosque"; also known as al-Haram Mosque, Haram al-Sharif, Masjid al-Sharif and the Haram) in Mecca, Saudi Arabia, is the holiest mosque in the world and the primary destination of the Hajj pilgrimage.

The mosque complex covers an area of 356,800 square meters and can accommodate up to 820,000 worshippers during the Hajj. The Holy Mosque is the only mosque that has no qibla direction, since Muslims pray facing the Ka'ba in the central courtyard.

Home Of Allah

Posted By Cyberstorm

Black Hawk

Posted By:Cyberstorm

Sunday, 15 May 2011

Black Hawk Helicopter

Mission

Provide air assault, general support, aeromedical evacuation, command and control and special operations support to combat and stability and support operations.
Description and Specifications

The UH 60 Black Hawk is a utility tactical transport helicopter that replaces the UH-1 "Huey". The versatile Black Hawk has enhanced the overall mobility of The Army, due to dramatic improvements in troop capacity and cargo lift capability, and will serve as The Army's utility helicopter in the Objective Force. On the asymmetric battlefield, it provides the commander the agility to get to the fight quicker and to mass effects throughout the battlespace across the full spectrum of conflict. An entire 11-person, fully-equipped infantry squad can be lifted in a single Black Hawk, transported faster than in predecessor systems, in most weather conditions. The Black Hawk can reposition a 105 mm Howitzer, its crew of six, and lift up to 30 rounds of ammunition in a single lift. The aircraft's critical components and systems are armored or redundant, and its airframe is designed to progressively crush on impact to protect the crew and passengers.

Black Hawk

Posted By:Cyberstorm

Sir Isaac Newton

Sir Isaac Newton(4 January 1643 – 31 March 1727 [OS: 25 December 1642 – 20 March 1727] was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian.

His monograph Philosophiæ Naturalis Principia Mathematica, published in 1687, lays the foundations for most of classical mechanics and is one of the most important scientific books ever written. In this work, Newton described universal gravitation and the three laws of motion, which dominated the scientific view of the physical universe for the next three centuries. Newton showed that the motions of objects on Earth and of celestial bodies are governed by the same set of natural laws, by demonstrating the consistency between Kepler's laws of planetary motion and his theory of gravitation, thus removing the last doubts about heliocentrism and advancing the Scientific Revolution.

Sir Isaac Newton

Posted By:Cyberstorm