Those continents were essentially walled off by geographic barriers.
In that long, lean country, impressive geographic barriers limit the distribution of species.
Third, there are no geographic barriers in cyberspace.An attack could originate from anywhere.
"Today, geographic barriers are disappearing, and the way we do business is changing," said Mr. Nilekani, the Infosys chief.
Flights like these demonstrated aviation's ability to overcome geographic barriers and shrink time-distance relationships.
Rome and Mumbai operate hard geographic barriers to entry: those who live outside the cities cannot operate inside them.
The sound of a city used to develop slowly and with limited influences, but in the Internet era the geographic barriers of music have largely been demolished.
The two key forces of the Internet revolution -- the erosion of geographic barriers and the democratization of information -- are also at work in the escort industry.
Seeing firsthand how the Internet could break down economic and geographic barriers, she began thinking about going into business for herself.
The government insists that the risk of perturbation has been reduced through the use of natural geographic barriers or introduction of measures such as fencing.
"We're very excited about LevelEdge because it removes economic and geographic barriers for athletes," said Beth Bass, executive director of the Women's Basketball Coaches Association.
