(Encyclopedia) seasonal affective disorder (SAD), recurrent fall or winter depression characterized by excessive sleeping, social withdrawal, depression, overeating, and pronounced weight gain. SAD…
Physical ScienceAdvanced-Level Science ProjectsPhysical ScienceCan a Visible Light Outshine Infrared Radiation?How Do Different Surfaces Affect the Momentum of Marbles? How Can You Use Physics to…
An avalanche is any swift movement of snow, ice, mud, or rock down a mountainside or slope. Avalanches, which are natural forms of erosion and often seasonal, can reach speeds of more than 200…
1983 Pope John Paul II signs new Roman Catholic code incorporating changes brought about by Second Vatican Council (Jan. 25). Second space shuttle, Challenger, makes successful maiden…
What is this job like? Secretaries make appointments. They put files in order. They also write letters and answer the phone. They may make travel plans. Secretaries use computers, fax machines, and…
What is this job like? Paralegals, or legal assistants, help lawyers in their work. They perform some of the same tasks as lawyers. Paralegals investigate cases to make sure that lawyers know all…
rock group The group's album, Licensed to Ill (1986) spawned the hit “(You Gotta) Fight for Your Right (to Party)” and went quintuple platinum, fueled by cross-over interest from both the band's…
International Trade AgreementsInternational TradeIntroductionExports, Imports—Why Bother?The Argument for Free TradeArguments Against Free TradeBarriers to International TradeInternational Trade…
There are several types of maps. Each show different information. Most maps include a compass rose, which indicates which way is north, south, east and west. They also include a scale so you can…
