Columbia Encyclopedia

(Encyclopedia) machine, arrangement of moving and stationary mechanical parts used to perform some useful work or to provide transportation. From a historical perspective, many of the first machines were the result ...

(Encyclopedia) Raleigh or Ralegh, Sir Walter both: rŏlˈē, rălˈē [key], 1554?–1618, English soldier, explorer, courtier, and man of letters. Raleigh was made governor of Jersey in 1600, but his fortunes e...

(Encyclopedia)  CE5 Relations between potential energy (PE) and kinetic energy (KE) for a swinging pendulum energy, in physics, the ability or capacity to do work or to produce change. Forms of energy include hea...

(Encyclopedia) Maya mīˈə, Span. mäˈyä [key], indigenous people of S Mexico and Central America, occupying an area comprising the Yucatán peninsula and much of the present state of Chiapas in Mexico, Guatemala...

(Encyclopedia)  CE5 Electrical and radio symbols electricity, class of phenomena arising from the existence of charge. The basic unit of charge is that on the proton or electron—the proton's charge is designate...

(Encyclopedia) energy, sources of, origins of the power used for transportation, for heat and light in dwelling and working areas, and for the manufacture of goods of all kinds, among other applications. The develop...

(Encyclopedia) biblical archaeology, term applied to the archaeology of the biblical lands, especially those of the ancient Middle East. While the thousands of written texts found in the languages of the ancient Mid...

(Encyclopedia) Egyptian art, works of art created in the geographic area constituting the nation of Egypt. It is one of the world's oldest arts. The art of the New Kingdom (1570–1342 b.c.) can be viewed as th...

(Encyclopedia) Friends, Religious Society of, religious body originating in England in the middle of the 17th cent. under George Fox. The members are commonly called Quakers, originally a term of derision. The org...

(Encyclopedia)  CE5 New Mexico, state in the SW United States. At its northwestern corner are the so-called Four Corners, where Colorado, New Mexico, Arizona, and Utah meet at right angles; New Mexico is also bord...