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A blockchain is a distributed ledger with growing lists of records (blocks) that are securely linked together via cryptographic hashes. Each block contains...

Natural gas (also called fossil gas, methane gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane...

Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes inside...

The 5.56×45mm NATO (official NATO nomenclature 5.56 NATO, commonly pronounced "five-five-six") is a rimless bottlenecked intermediate cartridge family...

The 7.62×51mm NATO (official NATO nomenclature 7.62 NATO) is a rimless, straight walled, bottlenecked rifle cartridge. It is a standard for small arms...

Fatigue describes a state of tiredness (which is not sleepiness), exhaustion or loss of energy. Fatigue (in the medical sense) is sometimes associated...

Stomach cancer, also known as gastric cancer, is a cancer that develops from the lining of the stomach. Most cases of stomach cancers are gastric carcinomas...

Mozilla (stylized as moz://a) is a free software community founded in 1998 by members of Netscape. The Mozilla community uses, develops, publishes and...

Fenethylline (BAN, USAN) is a codrug of amphetamine and theophylline and a prodrug to both. It is also spelled phenethylline and fenetylline (INN); other...

Crowdsourcing involves a large group of dispersed participants contributing or producing goods or services—including ideas, votes, micro-tasks, and finances—for...

Tocilizumab, sold under the brand name Actemra among others, is an immunosuppressive drug, used for the treatment of rheumatoid arthritis, systemic juvenile...

Oracle VM VirtualBox (formerly Sun VirtualBox, Sun xVM VirtualBox and InnoTek VirtualBox) is a hosted hypervisor for x86 virtualization developed by Oracle...

Ephebophilia is the primary sexual interest in mid-to-late adolescents, generally ages 15 to 19. The term was originally used in the late 19th to mid-20th...

An electric aircraft is an aircraft powered by electricity. Electric aircraft are seen as a way to reduce the environmental effects of aviation, providing...

A photovoltaic power station, also known as a solar park, solar farm, or solar power plant, is a large-scale grid-connected photovoltaic power system (PV...

ISO/IEC/IEEE 12207 Systems and software engineering – Software life cycle processes is an international standard for software lifecycle processes. First...

Suspended animation is the temporary (short- or long-term) slowing or stopping of biological function so that physiological capabilities are preserved...

The genus Spilogale includes all skunks commonly known as spotted skunks. Currently, there are four accepted extant species: S. gracilis, S. putorius,...

The following is a list of unmanned aerial vehicles developed and operated in various countries around the world. AL fajer L-10 Amel (UAV) AeroDreams Chi-7...

Chronic lymphocytic leukemia (CLL) is a type of cancer in which the bone marrow makes too many lymphocytes (a type of white blood cell). Early on, there...