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ERIC Number: EJ1044108
Record Type: Journal
Publication Date: 2014-Sep
Pages: 4
Abstractor: As Provided
ISSN: ISSN-0031-9120
Measuring Global Position Using the Sun
Murphy, Evan; Hughes, Stephen
Physics Education, v49 n5 p553-556 Sep 2014
The determination of latitude and longitude on Earth has always been of interest to explorers and cartographers alike. Accurate positional information is often needed for rescue purposes in locations where satellite navigational systems are inoperable. The activity described in this paper demonstrates a simple procedure to determine latitude and longitude using a structure that casts a shadow and a clock. The latitude is calculated by the angle of the shadow cast by the midday Sun, and the longitude determined by knowing the local noon time in terms of the universal time. Using this technique, the latitude is usually within 1.5° of the true value, whilst the longitude within 0.25°. This exercise would be suitable as a high-school class experiment.
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: Secondary Education; High Schools
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Australia
Grant or Contract Numbers: N/A