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psychrometer

(Encyclopedia)psychrometer sīkrŏmˈĭtər [key], one of many instruments used for measuring the water vapor content or relative humidity of the atmosphere. It consists of two identical thermometers—the wet-bulb...

Tout, Thomas Frederick

(Encyclopedia)Tout, Thomas Frederick tout [key], 1855–1929, English historian. Educated at Oxford, he taught at the Univ. of Manchester from 1890 to 1925. Considered an outstanding authority on medieval history, ...

Abraham Lincoln Birthplace National Historical Park

(Encyclopedia)Abraham Lincoln Birthplace National Historical Park, 117 acres (47 hectares), central Ky., near Hodgenville; est. 1916. Abraham Lincoln was born in a log cabin in this area on Feb. 12, 1809. The exact...

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