| GPS is a powerful tool that can save a ship's
navigator hours of celestial observation and calculation. GPS has improved efficient
routing of vessels and enhanced safety at sea by making it possible to report a precise
position to rescuers when disaster strikes. GPS improves efficiency on land as well. Delivery trucks can receive GPS signals and instantly transmit their position to a central dispatcher. Police and fire departments can use GPS to dispatch their vehicles efficiently, reducing response time. GPS helps motorists find their way by showing their position and intended route on dashboard displays. Railroads are using GPS technology to replace older, maintenance-intensive mechanical signals.
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| GPS in Vehicles Many types of GPS systems can be used on vehicles, providing the driver with the current position and a local map. Image courtesy of Trimble.
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Nautical Chart Error The data collected from satellite navigation systems provide more accurate information for maps and nautical and aeronautical charts. This example demonstrates how charts are updated to prevent navigational mishaps. |
| GPS Receivers
Donated by Trimble. |
This GPS receiver incorporates such capabilities as navigation tools, internet access, and a digital camera. Donated by Seiko Epson Corporation. |
Before GPS | GPS Revolution | How GPS Works | Land and Sea Navigation
Navigation In The Air |
Mapping The Earth | Managing The Land | New Frontiers in Science
GPS: A New Constellation
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Smithsonian National Air and Space Museum |
