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Nuclear fusion is a reaction in which two or more atomic nuclei, usually deuterium and tritium (hydrogen isotopes), combine to form one or more different...

The DVD (common abbreviation for Digital Video Disc or Digital Versatile Disc) is a digital optical disc data storage format. It was invented and developed...

An ice age is a long period of reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and...

Intellectual disability (ID), also known as general learning disability (in the United Kingdom) and mental retardation, is a generalized neurodevelopmental...

In guns, particularly firearms, but not artillery, where a different definition may apply[citation needed], caliber (or calibre; sometimes abbreviated...

Electroencephalography (EEG) is a method to record an electrogram of the spontaneous electrical activity of the brain. The biosignals detected by EEG have...

The Volkswagen Golf (listen) is a compact car/small family car (C-segment) produced by the German automotive manufacturer Volkswagen since 1974, marketed...

Saab Automobile AB (/sɑːb/) was a car manufacturer that was founded in Sweden in 1945 when its parent company, Saab AB, began a project to design a small...

The history of mathematics deals with the origin of discoveries in mathematics and the mathematical methods and notation of the past. Before the modern...

A jet engine is a type of reaction engine, discharging a fast-moving jet of heated gas (usually air) that generates thrust by jet propulsion. While this...

Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular...

The time zone in Germany is Central European Time (Mitteleuropäische Zeit, MEZ; UTC+01:00) and Central European Summer Time (Mitteleuropäische Sommerzeit...

American Motors Corporation (AMC; commonly referred to as American Motors) was an American automobile manufacturing company formed by the merger of Nash-Kelvinator...

Volvo Cars (Swedish: Volvo personvagnar, styled VOLVO in the company's logo) is a Swedish multinational manufacturer of luxury vehicles. Volvo is headquartered...

Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism. Toxicity can refer to the effect on...

Hyperthyroidism is the condition that occurs due to excessive production of thyroid hormones by the thyroid gland. Thyrotoxicosis is the condition that...

Mac OS (originally System Software; retronym: Classic Mac OS) is the series of operating systems developed for the Macintosh family of personal computers...

OS/2 (Operating System/2) is a series of computer operating systems, initially created by Microsoft and IBM under the leadership of IBM software designer...

TeX (/tɛx/, see below), stylized within the system as TeX, is a typesetting system which was designed and written by computer scientist and Stanford University...

The Tupolev Tu-154 (Russian: Tyполев Ту-154; NATO reporting name: "Careless") is a three-engined, medium-range, narrow-body airliner designed in the mid-1960s...