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A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure...

The McDonnell Douglas (now Boeing) F-15E Strike Eagle is an American all-weather multirole strike fighter derived from the McDonnell Douglas F-15 Eagle...

In biological classification, subspecies (pl.: subspecies) is a rank below species, used for populations that live in different areas and vary in size...

In human biology, handedness is an individual's preferential use of one hand, known as the dominant hand, due to it being stronger, faster or more dextrous...

The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes...

Cosmology (from Ancient Greek κόσμος (cosmos) 'the universe, the world', and λογία (logia) 'study of') is a branch of physics and metaphysics dealing with...

Four-dimensional space (4D) is the mathematical extension of the concept of three-dimensional space (3D). Three-dimensional space is the simplest possible...

Vehicle weight is a measurement of wheeled motor vehicles; either an actual measured weight of the vehicle under defined conditions or a gross weight rating...

A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern...

A microwave oven or simply microwave is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency...

Francis Harry Compton Crick OM FRS (8 June 1916 – 28 July 2004) was an English molecular biologist, biophysicist, and neuroscientist. He, James Watson...

The Dassault Mirage III (French pronunciation: [miʁaʒ]) is a family of single/dual-seat, single-engine, fighter aircraft developed and manufactured by...

In quantum mechanics, an atomic orbital (/ˈɔːrbɪtəl/) is a function describing the location and wave-like behavior of an electron in an atom. This function...

Japanese calendar types have included a range of official and unofficial systems. At present, Japan uses the Gregorian calendar together with year designations...

In computer science, an interpreter is a computer program that directly executes instructions written in a programming or scripting language, without requiring...

The Northrop Grumman E-2 Hawkeye is an American all-weather, carrier-capable tactical airborne early warning (AEW) aircraft. This twin-turboprop aircraft...

A diving chamber is a vessel for human occupation, which may have an entrance that can be sealed to hold an internal pressure significantly higher than...

The Northrop P-61 Black Widow is a twin-engine United States Army Air Forces fighter aircraft of World War II. It was the first operational U.S. warplane...

Family medicine is a medical specialty within primary care that provides continuing and comprehensive health care for the individual and family across...

Kinbaku (緊縛) means "tight binding", while Kinbaku-bi (緊縛美) literally means "the beauty of tight binding". Kinbaku is a Japanese style of bondage or BDSM...