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

parachute

Science; General science

A flexible, lightweight structure, generally intended to retard the passage of an object through the atmosphere by materially increasing the resistive surface. Parachutes have continued to be the ...

vertical takeoff and landing (VTOL)

A flight technique in which an aircraft rises directly into the air and settles vertically onto the ground. Such aircraft do not need runways but can operate from a small pad or, in some cases, from ...

North Sea

Science; General science

A flooded portion of the northwest continental margin of Europe occupying an area of over 200,000 mi 2 (500,000 km 2 ). The North Sea has extensive marine fisheries and important offshore oil and ...

floor construction

Science; General science

A floor of a building generally provides a wearing surface on top of a flat support structure. Its form and materials are chosen for architectural, structural, and cost reasons.

turbidity current

Science; General science

A flow of water laden with sediment that moves downslope in an otherwise still body of water. The driving force of a turbidity current is obtained from the sediment, which renders the turbid water ...

valve

Science; General science

A flow-control device. This article deals with valves for fluids, liquids, and gases. Valves are used to regulate the flow of fluids in piping systems and machinery. In machinery the flow ...

inflorescence

Science; General science

A flower cluster segregated from any other flowers on the same plant, together with the stems and bracts (reduced leaves) associated with it. Certain plants produce inflorescences, whereas others ...