Doppler Effect on Durations of Events: A Detailed Account of Undulatory and Ballistic Predictions
Author:
Faraj, A. A.
Category:
Research Papers
Sub-Category:
Mechanics / Electrodynamics
Language:
English
Date Published:
November 7, 2021
Downloads:
332
Keywords:
Doppler effect; blue shift; red shift; event; interval of time; duration; classical wave theory; elastic-impact emission theory; light source; light receiver; apparent time compression; apparent time expansion
Abstract:
According to every physical theory, the Doppler effect, on the electromagnetic spectrum, must lead to shortening of measured durations of events, in all cases of approach, and inversely, to lengthening of durations of events, in all cases of recession. In this investigation, the predictions of the classical wave theory and the elastic-impact emission theory, concerning this type of effect, have been calculated and analyzed, in detail. These two theories predict the same results, in all cases of moving receivers and stationary sources; but their predictions show significant differences, in all cases of moving sources and stationary receivers. Therefore, it's, possible to distinguish, experimentally, between their predictions, in this regard. Subsequently, it has been concluded that the Doppler effect, on the durations of events, is an important first-order effect that has to be taken, always, into account, in astrometric measurements, planetary ephemerides, and space navigation.
Comments
It is better to be late than never.
Isn't it?
There are, here, three possible scenarios:
• If the Doppler effect is absent, then the measured duration of an event must be equal to the actual duration of that event.
• If the Doppler effect is blue, then the measured duration of an event must be less than the actual duration of that event.
• If the Doppler effect is red, then the measured duration of an event must be greater than the actual duration of that event.
It is understood.
(Sorry, it is took me so long to come back!)
However, the "measured durations of events" does take into account the Doppler effect, so "measured durations of events" should be NO shorter and NO longer than its actual duration. Is not it?!
It is better to be late than never.
Isn't it?
????
There are, here, three possible scenarios:
• If the Doppler effect is absent, then the measured duration of an event must be equal to the actual duration of that event.
• If the Doppler effect is blue, then the measured duration of an event must be less than the actual duration of that event.
• If the Doppler effect is red, then the measured duration of an event must be greater than to the actual duration of that event.
Thank you so much for asking.
To make a long story short:
A. The Doppler effect, on the electromagnetic spectrum, shortens the observed duration of any event, in all cases of approach; because the integrated reduction in light wavelength makes the interval of time between the arrival of the first light pulse -- at the start of an event - and the arrival of the last light pulse -- at the end of the same event -- shorter than its actual duration..
B. The Doppler effect, on the electromagnetic spectrum, lengthens the observed duration of any event, in all cases of recession; because the integrated increase in light wavelength makes the interval of time between the arrival of the first light pulse -- at the start of an event - and the arrival of the last light pulse - -at the end of the same event -- longer than its actual duration.
Why is that?!
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