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

Landslide hazards and mitigation

Science; General science

A landslide is the failure and movement of a mass of rock, sediment, soil, or artificial fill under the influence of gravity. Landslides range in volume from tens of cubic metres to tens of cubic ...

Fucales

Science; General science

A large and diverse order of conspicuous brown algae (Phaeophyceae) including such well-known seaweeds as Fucus and Sargassum . Definitive features include apical growth, production of sex organs ...

Fluorescent lamp

Science; General science

A lamp that produces light largely by conversion of ultraviolet energy from a low-pressure mercury arc to visible light. Phosphors, chemicals that absorb radiant energy of a given wavelength and ...

Chlorophyceae

Science; General science

A large and diverse class of plants, commonly called green algae, in the chlorophyll a-b phyletic line (Chlorophycota). Estimated number of taxa varies widely; 560 genera and 8600 species are ...

A large aquatic rodent, Ondatra zibethicus , in the family Cricetidae and in the vole subfamily (Arvicolinae). It is known as the common muskrat (see illustration ). It is dark reddish-brown, with ...

Douglas-fir

Science; General science

A large coniferous tree, Pseudotsuga menziesii (formerly P. taxifolia ), known also as red fir, belonging to the pine family (Pinaceae). It is one of the most widespread and most valuable tree ...

Rhodophyceae

Science; General science

A large class of plants, commonly called red algae, coextensive with the division Rhodophycota. Most red algae are found in the ocean, growing on rocks, wood, other plants, or animals in the ...