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sublimation, in chemistry

(Encyclopedia)sublimation sŭblĭmāˈshən [key], change of a solid substance directly to a vapor without first passing through the liquid state. The term is also used to describe the reverse process of the gas ch...

valence, in chemistry

(Encyclopedia)valence, combining capacity of an atom expressed as the number of single bonds the atom can form or the number of electrons an element gives up or accepts when reacting to form a compound. Atoms are c...

sol, in chemistry

(Encyclopedia)sol, in chemistry: see colloid.

radical, in chemistry

(Encyclopedia)radical, in chemistry, group of atoms that are joined together in some particular spatial structure and that take part in most chemical reactions as a single unit. Important inorganic radicals include...

resonance, in chemistry

(Encyclopedia)resonance, in chemistry: see chemical bond. ...

rust, in chemistry and metallurgy

(Encyclopedia)rust, in chemistry and metallurgy: see corrosion. ...

Brooklyn Bridge

(Encyclopedia)Brooklyn Bridge, vehicular suspension bridge, New York City, southernmost of the bridges across the East River, between lower Manhattan and Brooklyn; built 1869–83. The achievement of J. A. Roebling...

Akashi Kaikyo Bridge

(Encyclopedia)Akashi Kaikyo Bridge, vehicular suspension bridge, S Honshu, Japan, across the Akashi Strait, a busy shipping lane, linking the city of Kobe with Awaji Island and part of a link between Honshu and Shi...

George Washington Bridge

(Encyclopedia)George Washington Bridge, vehicular suspension bridge across the Hudson River, between Manhattan borough of New York City and Fort Lee, N.J.; constructed 1927–31. It is one of the longest suspension...

Roebling, John Augustus

(Encyclopedia)Roebling, John Augustus rōˈblĭng [key], 1806–69, German-American engineer, b. Mulhouse. He studied engineering in Berlin and in 1831 came to the United States. He demonstrated the practicability ...