"Sorry Einstein" or "Goodbye Einstein"?

Professor Sidney Redner inadvertently disproves Einstein's relativity:

http://physics.bu.edu/~redner/211-sp...9_doppler.html
Professor Sidney Redner: "The Doppler effect is the shift in frequency of a wave that occurs when the wave source, or the detector of the wave, is moving. Applications of the Doppler effect range from medical tests using ultrasound to radar detectors and astronomy (with electromagnetic waves). (...) We will focus on sound waves in describing the Doppler effect, but it works for other waves too. (...) Let's say you, the observer, now move toward the source with velocity vO. You encounter more waves per unit time than you did before. Relative to you, the waves travel at a higher speed: v'=v+vO. The frequency of the waves you detect is higher, and is given by: f'=v'/λ=(v+vO)/λ."

"Relative to you, the waves travel at a higher speed" = Goodbye Einstein!

Professor Sidney Redner is not alone:

http://a-levelphysicstutor.com/wav-doppler.php
"vO is the velocity of an observer moving towards the source. This velocity is independent of the motion of the source. Hence, the velocity of waves relative to the observer is c + vO. (...) The motion of an observer does not alter the wavelength. The increase in frequency is a result of the observer encountering more wavelengths in a given time."

"The velocity of waves relative to the observer is c + vO" = Goodbye Einstein!

https://www.youtube.com/watch?v=bg7O4rtlwEE
"Doppler effect - when an observer moves toward a stationary source. When an observer moves toward a stationary source, the period of the wave emitted by a source is shorter and the observed frequency is higher. Because the velocity of the wave relative to the observer is faster than that when it is still."

"The velocity of the wave relative to the observer is faster than that when it is still" = Goodbye Einstein!

http://www.einstein-online.info/spotlights/doppler
Albert Einstein Institute: "The frequency of a wave-like signal - such as sound or light - depends on the movement of the sender and of the receiver. This is known as the Doppler effect. [...] Here is an animation of the receiver moving towards the source:

http://www.einstein-online.info/imag...ler_static.gif (stationary receiver)

http://www.einstein-online.info/imag...ector_blue.gif (moving receiver)

By observing the two indicator lights, you can see for yourself that, once more, there is a blue-shift - the pulse frequency measured at the receiver is somewhat higher than the frequency with which the pulses are sent out. This time, the distances between subsequent pulses are not affected, but still there is a frequency shift: As the receiver moves towards each pulse, the time until pulse and receiver meet up is shortened. In this particular animation, which has the receiver moving towards the source at one third the speed of the pulses themselves, four pulses are received in the time it takes the source to emit three pulses." [end of quotation]

"Four pulses are received in the time it takes the source to emit three pulses" = The speed of the pulses relative to the receiver (observer) is greater than their speed relative to the source = Goodbye Einstein!

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