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Fenton, Roger

(Encyclopedia)Fenton, Roger, 1819–69, English pioneer photographer. Originally a barrister, Fenton worked from the early 1850s until 1862 as a fashionable architectural, still-life, portrait, and landscape photog...

Smith, George Elwood

(Encyclopedia)Smith, George Elwood, 1930–, American physicist, b. White Plains, N.Y., Ph.D., Univ. of Chicago, 1959. Smith was a researcher at Bell Laboratories in Murray Hill, N.J., from 1959 until his retiremen...

Talbot, William Henry Fox

(Encyclopedia)Talbot, William Henry Fox, 1800–1877, English inventor of photographic processes (see photography, still). A man of enormously versatile intelligence, he invented the “photogenic drawing” proces...

silver nitrate

(Encyclopedia)silver nitrate nīˈtrāt [key], chemical compound, AgNO3, a colorless crystalline material that is very soluble in water. The most important compound of silver, it is used in the preparation of silve...

Weegee

(Encyclopedia)Weegee, pseud. of Arthur Fellig, 1899–1968, American photojournalist, b. Zolochiv, Ukraine (then in Austria-Hungary) as Usher Fellig. His family immigrated (1910) to New York City, where he soon qui...

Rayleigh, John William Strutt, 3d Baron

(Encyclopedia)Rayleigh, John William Strutt, 3d Baron rāˈlē [key], 1842–1919, English physicist. He was professor at Cambridge (1879–84) and at the Royal Institution (1887–1905), and chancellor of Cambridg...

Dewdney, Anna

(Encyclopedia)Dewdney, Anna, 1965–2016, American children's book author and illustrator, b. Englewood Cliffs, N.J., as Anna Elizabeth Luhrmann, B.A. Wellesley, 1987. After illustrating adult and children's books ...

animated cartoon

(Encyclopedia)animated cartoon: see Nontheatrical Film under motion pictures. ...

force

(Encyclopedia)force, commonly, a “push” or “pull,” more properly defined in physics as a quantity that changes the motion, size, or shape of a body. Force is a vector quantity, having both magnitude and dir...