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Hampton, city, United States

(Encyclopedia)Hampton. <1> City (2020 pop. 8,368), Henry co., central Ga.; est. 1873. Originally known as Bear Creek, the town was moved and renamed when ...

transpiration

(Encyclopedia)transpiration, in botany, the loss of water by evaporation in terrestrial plants. Some evaporation occurs directly through the exposed walls of surface cells, but the greatest amount takes place throu...

recorder

(Encyclopedia)recorder, musical wind instrument of the flute family, made of wood, varying in length, and having an inverted conical bore (largest end near the mouthpiece). Its tone is produced by an air stream aga...

Omaha, city, United States

(Encyclopedia)Omaha ōˈməhä, –hô [key], city (1990 pop. 335,795), seat of Douglas co., E Nebr., on the west bank of the Missouri River; inc. 1857. The largest city in the state, it is a busy port of entry and...

acid rain

(Encyclopedia)acid rain or acid deposition, form of precipitation (rain, snow, sleet, or hail) containing high levels of sulfuric or nitric acids (pH below 5.5–5.6). Produced when sulfur dioxide and various nitro...

skin diving

(Encyclopedia)skin diving, act of swimming freely underwater. It is done with the aid of a face mask, swimming fins for the feet, and either a snorkel breathing tube or scuba [acronym for self-contained underwater ...

stalactite and stalagmite

(Encyclopedia)stalactite stəlăgˈmīt [key], mineral forms often found in caves; sometimes collectively called dripstone. A stalactite is an icicle-shaped mass of calcite attached to the roof of a limestone caver...

cadmium

(Encyclopedia)cadmium kădˈmēəm [key] [from cadmia, Lat. for calamine, with which cadmium is found associated], metallic chemical element; symbol Cd; at. no. 48; at. wt. 112.411; m.p. 321℃; b.p. 765℃; sp. gr...

bleaching

(Encyclopedia)bleaching, process of whitening by chemicals or by exposure to sun and air, commonly applied to textiles, paper pulp, wheat flour, petroleum products, oils and fats, straw, hair, feathers, and wood. C...

Abubakar, Abdulsalam Alhaji

(Encyclopedia)Abubakar, Abdulsalam Alhaji, 1942–, Nigerian military officer and political leader, b. Minna, Niger State. He served in the Nigerian air force (1963–67) and army (1967–99), achieving the rank of...