A comprehensive digital encyclopedia presenting factual, historical, and educational articles supported by reliable sources and structured data. Page: 455

In physics, motion is when an object changes its position with respect to a reference point in a given time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and frame of reference to an observer, measuring the change in position of the body relat…

Organized baseball leagues include:…

A manuscript (abbreviated MS for singular and MSS for plural) was, traditionally, any document written by hand or typewritten, as opposed to mechanically printed or reproduced in some indirect or automated way. More recently, the term has come to be understood to further include any written, typed, …

Constitutional monarchy, also known as limited monarchy, parliamentary monarchy or democratic monarchy, is a form of monarchy in which the monarch exercises their authority in accordance with a constitution and is not alone in making decisions. Constitutional monarchies differ from absolute monarchi…

James David "Buddy" Ryan (February 17, 1931 – June 28, 2016) was an American football coach in the National Football League (NFL) and American Football League (AFL). During his 35-season coaching career, Ryan served as the head coach of the Philadelphia Eagles from 1986 to 1990, and of the Arizona C…

A lacrosse stick or crosse is used to play the sport of lacrosse. Players use the lacrosse stick to handle the ball and to strike or "check" opposing players' sticks, causing them to drop the ball. The head of a lacrosse stick is roughly triangular in shape and is strung with loose netting that allo…

The NFL draft, officially known as the Annual Player Selection Meeting, is an annual event which serves as the most common source of player recruitment in the National Football League (NFL). Each team is given a position in the drafting order in reverse order relative to its record in the previous y…

Primary education is the first stage of formal education, coming after preschool/kindergarten and before secondary education. Primary education takes place in primary schools, elementary schools, or first schools and middle schools, depending on the location. Hence, in the United Kingdom and some ot…

A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) into electricity through a pair of redox reactions. Fuel cells are different from most batteries in requiring a continuous source of fuel and oxygen (usually from…

Authority is commonly understood as the legitimate power of a person or group over other people. In a civil state, authority may be practiced by legislative, executive, and judicial branches of government, each of which has authority and is an authority. The term "authority" has multiple nuances and…