General science

General science

A variety of science subjects concerning the fundamental knowledge about different aspects of our world and their underlying principles.

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General science

Naphtha

Science; General science

Any one of a wide variety of volatile hydrocarbon mixtures. They are sometimes obtained from coal tar, but more often they are derived from petroleum. Physical properties vary widely. The initial ...

Calorimeters measure all processes, chemical and physical, involving an exchange of heat energy with the surroundings. The calorimeter is nonspecific in its operation; that is, it will monitor and ...

Group theory

Science; General science

Any set of elements which is equipped with an operation (called multiplication) satisfying the requirements (1), (2), (3), and (4) is called a group. Group theory is the branch of mathematics ...

Alcohol fuel

Science; General science

Any alcohol burned as a fuel. Generally, the term alcohol refers to ethanol, the first organic chemical produced by humans. If available, any alcohol may be used as a fuel, but ethanol and methanol ...

Teleconferencing

Science; General science

Broadly, the various ways and means by which people communicate with one another over some distance. In a narrow sense, a teleconference is a two-way, interactive meeting, between relatively small ...

Lipoprotein

Science; General science

Classes of conjugated proteins consisting of a protein combined with a lipid. The normal functioning of higher organisms requires movement of insoluble lipids between tissues. These lipids include ...

Cilia and flagella

Science; General science

Centriole-based, motile cell extensions. These organelles are usually indistinguishable in fine structure as seen with the electron microscope, but quantitatively there are many (several hundred) ...