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Old November 9th 19, 12:35 PM posted to sci.astro
Pentcho Valev
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Default Einstein's 1905 Second Fraud

Einstein's 1905 second fraud was ASYMMETRIC time dilation - the moving clock is slow, the stationary one is fast:

https://youtu.be/Q1y3YnPgaY4?t=1157

Albert Einstein, On the Electrodynamics of Moving Bodies, 1905: "From this there ensues the following peculiar consequence. If at the points A and B of K there are stationary clocks which, viewed in the stationary system, are synchronous; and if the clock at A is moved with the velocity v along the line AB to B, then on its arrival at B the two clocks no longer synchronize, but the clock moved from A to B lags behind the other which has remained at B by tv^2/2c^2 (up to magnitudes of fourth and higher order), t being the time occupied in the journey from A to B." http://www.fourmilab.ch/etexts/einstein/specrel/www/

That was non sequitur. His two postulates entail SYMMETRIC time dilation - either clock is slow as judged from the other clock's system (or either clock is fast as judged from its own system):

David Morin, Introduction to Classical Mechanics With Problems and Solutions, Chapter 11, p. 14: "Twin A stays on the earth, while twin B flies quickly to a distant star and back. [...] For the entire outward and return parts of the trip, B does observe A's clock running SLOW..." http://www.people.fas.harvard.edu/~djmorin/chap11.pdf

"The situation is that a man sets off in a rocket travelling at high speed away from Earth, whilst his twin brother stays on Earth. [...] ...the twin in the spaceship considers himself to be the stationary twin, and therefore as he looks back towards Earth he sees his brother ageing MORE SLOWLY than himself." http://topquark.hubpages.com/hub/Twin-Paradox

Pentcho Valev