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MSN Messenger (also known colloquially simply as MSN), later rebranded as Windows Live Messenger, was a cross-platform instant-messaging client developed...

The Consolidated B-24 Liberator is an American heavy bomber, designed by Consolidated Aircraft of San Diego, California. It was known within the company...

A blood type (also known as a blood group) is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances...

The red deer (Cervus elaphus) is one of the largest deer species. A male red deer is called a stag or hart, and a female is called a doe or hind. The red...

The Doppler effect (also Doppler shift) is the change in the frequency of a wave in relation to an observer who is moving relative to the source of the...

Ectopic pregnancy is a complication of pregnancy in which the embryo attaches outside the uterus. Signs and symptoms classically include abdominal pain...

Hunting is the human practice of seeking, pursuing, capturing, and killing wildlife or feral animals. The most common reasons for humans to hunt are to...

In linear algebra, an invertible matrix is a square matrix which has an inverse. In other words, if some other matrix is multiplied by the invertible matrix...

Finnair Plc (Finnish: Finnair Oyj, Swedish: Finnair Abp) is the flag carrier and largest full-service legacy airline of Finland, with headquarters in Vantaa...

An electrical injury, (electric injury) or electrical shock (electric shock) is damage sustained to the skin or internal organs on direct contact with...

Claustrophobia is a fear of confined spaces. It is triggered by many situations or stimuli, including elevators, especially when crowded to capacity, windowless...

Traffic lights, traffic signals, or stoplights – also known as robots in South Africa, Zambia, and Namibia – are signaling devices positioned at road intersections...

Philo Taylor Farnsworth (August 19, 1906 – March 11, 1971) was an American inventor and television pioneer. He made the critical contributions to electronic...

Pinus strobus, commonly called the eastern white pine, northern white pine, white pine, Weymouth pine (British), and soft pine is a large pine native to...

A dead end, also known as a cul-de-sac (/ˈkʌldəsæk, ˈkʊl-/; French: [kydsak], lit. 'bag bottom'), or a no-through road or no-exit road, is a street with...

Wind chill (popularly wind chill factor) is the sensation of cold produced by the wind for a given ambient air temperature on exposed skin as the air motion...

In mathematics, a diffeomorphism is an isomorphism of differentiable manifolds. It is an invertible function that maps one differentiable manifold to another...

A short takeoff and landing (STOL) aircraft is a conventional fixed-wing aircraft that has short runway requirements for takeoff and landing. Many STOL-designed...

The terms international waters or transboundary waters apply where any of the following types of bodies of water (or their drainage basins) transcend international...

The Isuzu MU is a mid-size SUV which was produced by Japan-based manufacturer Isuzu from 1989 to 2005. The three-door MU was introduced in 1989, followed...