Cell phones pinpoint locations
2. What are some practical applications?
3. How accurate is the system?
Answers:
1. Location-based Services using radio signals.
2. Live monitoring of traffic congestion or monitoring dangerous and poisonous goods.
3. Most pointing devices can pinpoint positions within 10 meters.
About the broadcaster:
Nelly Min is an editor at China Daily with more than 10 years of experience as a newspaper editor and photographer. She has worked at major newspapers in the U.S., including the Los Angeles Times and the Detroit Free Press. She is also fluent in Korean.
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