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

Acoustic microscope

Science; General science

An instrument that utilises focused acoustic waves to produce images of surface and subsurface features in materials, and to measure elastic properties on a microscopic scale. It has been used to ...

Power-factor metre

Science; General science

An instrument used to indicate whether load currents and voltages are in time-phase with one another.

Archiacanthocephala

Science; General science

An order (or class, according to some classifications) of the phylum Acanthocephala. The adult worms are parasitic in terrestrial vertebrates. The body wall and lemnisci of species in this order ...

An order comprising the even-toed ungulates (hoofed mammals). There are two main radiations: the predominantly omnivorous Bunodontia, including suoids (such as pigs, peccaries, and hippos); and the ...

Hiodontiformes

Science; General science

An order formerly in Osteoglossiformes but now independent, with the two orders comprising the extant Osteoglossomorpha, a primitive group of teleost fishes. The Hiodontiformes consist of one family, ...

Pteriomorphia

Science; General science

An order containing seven superfamilies of marine and brackish bivalves with byssal attachment at some time in their geological history (the Ostreacea are exceptional, with the lower valve attached ...

Lysorophia

Science; General science

An order and clade of elongate lepospondyls with highly reduced limbs and a lightly built, open skull known from the Middle Pennsylvanian to Lower Permian (305–270 million years ago) of North America ...