Performance and Results of Portable Clocks in Aircraft. J.C. Hafele. Proceedings of the Third Annual Department of Defense (DoD) Precise Time and Time Interval (PTTI) Strategic Planning Meeting. (1971): 261-288. DTIC Accession Number: ADA489971.
Time Dilation. Sixty Symbols. YouTube (2011). The twins paradox, muons and special relativity are among the issues in this video about the symbol gamma, which can represent the Lorentz factor.
Relativity Paradox. Sixty Symbols. YouTube (2013). Trains, tunnels, muons and giant guillotines — strange things happen when you travel close to the speed of light. Discussing relativity, time dilation and Lorentz contraction.
Why is time slower in rockets? Sixty Symbols. YouTube (2013). The third in our gamma trilogy — this time Professor Mike Merrifield goes into the mathematics!
The Michelson Morley Experiment. In 1887, an exquisitely designed measurement of the Earth's motion through the ether results in the most brilliant failure in scientific history.
The Lorentz Transformation. If the speed of light is to be the same for all observers, then the length of a meter stick, or the rate of a ticking clock, depends on who measures it.
Velocity and Time. Einstein is motivated to perfect the central ideas of physics, resulting in a new understanding of the meaning of space and time.