global positioning systems

China expanded its location services throughout Asia
China's navigation system began providing global positioning services in the Asia-Pacific region from yesterday.
Russia launched Glonass-M navigation satellite
On November 28, Russia launched a Soyuz Glonass-M guided satellite at the Plesetsk space center in the northwest of the country.
Smartphones can warn earthquakes
Phones equipped with GPS Global Positioning System can have both earthquake early warning functions.