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

Stellar magnetic field

Science; General science

A magnetic field, far stronger than the Earth's magnetic field, which is possessed by many stars. Magnetic fields are important throughout the life cycle of a star. Initially, magnetic fields ...

Atom interferometer, magnetic waveguide

Science; General science

A magnetic waveguide atom interferometer is a device which creates an interference pattern by coherently splitting a Bose-Einstein condensate (BEC) into two separate parts, guiding each along ...

Concentrating solar power

Science; General science

A main drive for developing reliable sources of renewable energy is the fast-growing worldwide energy demand with consequent depletion of fossil fuels, which supply over 85% of the present energy ...

A major division of geologic time spanning from 2500 to 543 million years before present (Ma). The beginning of Proterozoic time is an arbitrary boundary that roughly coincides with the transition ...

Bilateria

Science; General science

A major division of the animal kingdom comprising all forms with a bilaterally symmetrical body plan (that is, their left and right sides are mirror images, or nearly so) and organ systems that ...

Pennsylvanian

Science; General science

A major division of late Paleozoic time, considered either as an independent period or as the younger subperiod of the Carboniferous. In North America, the Pennsylvanian has been widely recognised as ...

Abdomen

Science; General science

A major body division of the vertebrate trunk lying posterior to the thorax; and in mammals, bounded anteriorly by the diaphragm and extending to the pelvis. The diaphragm, found only in mammals, ...