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Michael Russell Rip, James M. Hasik (2002). The Precision Revolution: GPS and the Future of Aerial Warfare. Naval Institute Press.

has been cited by the following article:


Drifting Clock and Lunar Cycle

1Deerfield High School, Deerfield

2Wayne State University, 42 W Warren Ave, Detroit

3Shanghai Jiaotong University, Shanghai, China

International Journal of Physics. 2013, Vol. 1 No. 5, 121-127
DOI: 10.12691/ijp-1-5-5
Copyright © 2013 Science and Education Publishing

Cite this paper:
Henry Gu Cao, Zhiliang Cao. Drifting Clock and Lunar Cycle. International Journal of Physics. 2013; 1(5):121-127. doi: 10.12691/ijp-1-5-5.

Correspondence to: Zhiliang  Cao, Wayne State University, 42 W Warren Ave, Detroit. Email:


An experiment is proposed, consisting of a Java UDP program that performs simple tests using two different servers connect by the internet. These tests can be repeated using the source code provided in the paper. The test results conclude that the two clocks, in different geographical locations, are drifting throughout the twenty four hour day.