2017-05-14 11:07:55 UTC
A light source emits a series of pulses equally distanced from one another. A stationary observer (receiver) measures the frequency:
The observer starts moving with constant speed towards the light source and measures the frequency again:
Premise 1: The moving observer measures the frequency to be higher.
Premise 2: The formula
(measured frequency) = (speed of the pulses relative to the observer)/(distance between the pulses)
Conclusion: The speed of the pulses relative to the moving observer is higher than relative to the stationary observer, in violation of Einstein's relativity.