Back to Search
Start Over
Measurement of gravitational time dilation: An undergraduate research project.
- Source :
-
American Journal of Physics . Oct2017, Vol. 85 Issue 10, p757-762. 6p. - Publication Year :
- 2017
-
Abstract
- General relativity predicts that clocks run more slowly near massive objects. The effect is small--a clock at sea level lags behind one 1000m above sea level by only 9.4 ns/day. Here, we demonstrate that a measurement of this effect can be done by undergraduate students. Our paper describes an experiment conducted by undergraduate researchers at Colorado College and the United States Air Force Academy to measure gravitational time dilation. The measurement was done by comparing the signals generated by a GPS frequency standard (sea-level time) to a Cs-beam frequency standard at seven different altitudes above sea level. We found that our measurements are consistent with the predictions of general relativity. [ABSTRACT FROM AUTHOR]
- Subjects :
- *GRAVITATIONAL time dilation
*UNDERGRADUATES
*SEA level
*GLOBAL Positioning System
Subjects
Details
- Language :
- English
- ISSN :
- 00029505
- Volume :
- 85
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- American Journal of Physics
- Publication Type :
- Academic Journal
- Accession number :
- 125222434
- Full Text :
- https://doi.org/10.1119/1.5000802