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Clinical trials are prospective biomedical or behavioral research studies on human participants designed to answer specific questions about biomedical...

Forensic science, also known as criminalistics, is the application of science principles and methods to support legal decision-making in matters of criminal...

Cardiac surgery, or cardiovascular surgery, is surgery on the heart or great vessels performed by cardiac surgeons. It is often used to treat complications...

The M1919 Browning is a .30 caliber medium machine gun that was widely used during the 20th century, especially during World War II, the Korean War, and...

Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed in a...

Hardwood is wood from angiosperm trees. These are usually found in broad-leaved temperate and tropical forests. In temperate and boreal latitudes they...

A wavelet is a wave-like oscillation with an amplitude that begins at zero, increases or decreases, and then returns to zero one or more times. Wavelets...

Google Mobile Services (GMS) is a collection of proprietary applications and application programming interfaces (APIs) services from Google that are typically...

Hemodialysis, also spelled haemodialysis, or simply dialysis, is a process of filtering the blood of a person whose kidneys are not working normally. This...

Kite is the common name for certain birds of prey in the family Accipitridae, particularly in subfamilies Milvinae, Elaninae, and Perninae. The term is...

The National Grid is the high-voltage electric power transmission network serving Great Britain, connecting power stations and major substations, and ensuring...

Degaussing is the process of decreasing or eliminating a remnant magnetic field. It is named after the gauss, a unit of magnetism, which in turn was named...

Sigma-Aldrich (formally MilliporeSigma) is an American chemical, life science, and biotechnology company owned by the multinational chemical conglomerate...

A flare, also sometimes called a fusée, fusee, or bengala, bengalo in several European countries, is a type of pyrotechnic that produces a bright light...

Key exchange (also key establishment) is a method in cryptography by which cryptographic keys are exchanged between two parties, allowing use of a cryptographic...

A lye is an alkali metal hydroxide. Traditionally it was obtained by using rainwater to leach wood ashes, which are strongly alkaline and highly soluble...

Sound of jet airliner overhead The sound of a jet airliner passing overhead (starts at about 20 seconds) Problems playing this file? See media help. A...

Yorkshire Ambulance Service NHS Trust (YAS) is the NHS ambulance service covering most of Yorkshire in England. It is one of ten NHS Ambulance Trusts providing...

The Mazda B series is a series of pickup trucks that was manufactured by Mazda. Produced across five generations from 1961 to 2006, the model line began...

Ipomoea (/ˌɪpəˈmiː.ə, -oʊ-/) is the largest genus in the plant family Convolvulaceae, with over 600 species. It is a large and diverse group, with common...