While still in its early stages, welfare reform has already been judged a great success in many states—at least in getting people off welfare. It’s estimated that more than 2 million peopl
Long after the 1998 World Cup was won, disappointed fans were still cursing the disputed refereeing (裁判) decisions that denied victory to their team. A researcher was appointed to study the perfor
Amtrak (美国铁路客运公司) was experiencing a downswing in ridership (客运量) along the lines comprising its rail system. Of major concern to Amtrak and its advertising agency DDB Needham, w
Why does cram go bad faster than butter? Some researchers think they have the answer, and it comes down to the structure of the food, not its chemical composition—a findingthat could help rid so
Believe it or not, optical illusion (错觉) can cut highway crashes.Japan is a case in point. It has reduced automobile crashes on some roads by nearly 75 percent using a simple optical illusion. Ben
Unless we spend money to spot and prevent asteroids (小行星) now, one might crash into Earth and destroy life as we know it, say some scientists.Asteroids are bigger versions of the meteoroids (
In 1993. New York State ordered stores to charge a deposit on beverage (饮料) containers. Within a year. Consumers had returned millions of aluminum cans and glass and plastic bottles. Plenty of com
Kite flying is the sport of sending up into the air,by means of the wind , a light frame covered with paper,plastic or cloth. The frame can be one of many different shapes and is attached to a long st
Accreditation is a system for setting national standards of quality in education. The United States is unique in the would because its accreditation system is not administered by the government , b
Liberia, the oldest independent Negro state in West A frica, has been struggling for survial ever since its foundation in 1822.Progress has been hampered by constant hostility between the American Neg