Pentcho Valev
2016-04-10 18:59:07 UTC
http://www.people.fas.harvard.edu/~djmorin/chap11.pdf
Introduction to Classical Mechanics With Problems and Solutions, David Morin, Cambridge University Press, 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, but enough strangeness occurs during the turning-around period to make A end up older. Note, however, that a discussion of acceleration is not required to quantitatively understand the paradox..."
This is idiotic isn't it? The traveling twin turns around, and this act of his miraculously makes the distant stationary twin on the Earth older. The video below elaborates on the idiocy. During the very brief moment when the traveling twin turns around, he experiences acceleration or "gravitational field" (the turn-around and the acceleration are absent in some twin-paradox scenarios - there is no "gravitational field"). Einsteinians explain that the traveling twin "will BELIEVE that this gravitational field exists throughout all of space, and that this gravitational field is causing the Earth and the rest of the universe to accelerate towards him". And then a second belief: "Therefore, Adam will BELIEVE that the gravitational field is causing time on Earth to flow much faster than time on his ship". In short, the solution of the twin paradox is based on the beliefs of the traveling twin during the turning-around period, beliefs which are obviously false but are nevertheless ascribed to the traveling twin by Einsteinians:
"For Adam to return back to Earth, he will eventually need to fire his rockets to turn around. When he fires his rockets, Adam will still continue to think that his spaceship is standing still. However, in order to believe that his spaceship is standing still, he needs to also believe that there is now a gravitational field present that is cancelling out the force from his rockets. Adam will believe that this gravitational field exists throughout all of space, and that this gravitational field is causing the Earth and the rest of the universe to accelerate towards him. (...) Therefore, Adam will believe that the gravitational field is causing time on Earth to flow much faster than time on his ship. It is only during the very brief moment when Adam is firing his rockets to turn around that he believes this external gravitational field is present. For the remainder of his trip after he turns his rockets off, Adam will again view time on Earth as moving slowly. Nevertheless, during the very brief moments when he fires his engines, he sees time on Earth flowing so extremely fast that this far more than compensates for the fact that he sees time on Earth flowing slowly during the rest of his journey. This is why Adam will believe that more time has passed for Sarah than for him when he returns."
This idiotic "solution" of the twin paradox was fabricated by Einstein in 1918 ("A homogenous gravitational field appears" which can only reach the Earth in the beliefs of the traveling twin):
http://sciliterature.50webs.com/Dialog.htm
Albert Einstein 1918: "A homogenous gravitational field appears, that is directed towards the positive x-axis. Clock U1 is accelerated in the direction of the positive x-axis until it has reached the velocity v, then the gravitational field disappears again. An external force, acting upon U2 in the negative direction of the x-axis prevents U2 from being set in motion by the gravitational field. (...) According to the general theory of relativity, a clock will go faster the higher the gravitational potential of the location where it is located, and during partial process 3 U2 happens to be located at a higher gravitational potential than U1. The calculation shows that this speeding ahead constitutes exactly twice as much as the lagging behind during the partial processes 2 and 4."
Pentcho Valev
Introduction to Classical Mechanics With Problems and Solutions, David Morin, Cambridge University Press, 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, but enough strangeness occurs during the turning-around period to make A end up older. Note, however, that a discussion of acceleration is not required to quantitatively understand the paradox..."
This is idiotic isn't it? The traveling twin turns around, and this act of his miraculously makes the distant stationary twin on the Earth older. The video below elaborates on the idiocy. During the very brief moment when the traveling twin turns around, he experiences acceleration or "gravitational field" (the turn-around and the acceleration are absent in some twin-paradox scenarios - there is no "gravitational field"). Einsteinians explain that the traveling twin "will BELIEVE that this gravitational field exists throughout all of space, and that this gravitational field is causing the Earth and the rest of the universe to accelerate towards him". And then a second belief: "Therefore, Adam will BELIEVE that the gravitational field is causing time on Earth to flow much faster than time on his ship". In short, the solution of the twin paradox is based on the beliefs of the traveling twin during the turning-around period, beliefs which are obviously false but are nevertheless ascribed to the traveling twin by Einsteinians:
"For Adam to return back to Earth, he will eventually need to fire his rockets to turn around. When he fires his rockets, Adam will still continue to think that his spaceship is standing still. However, in order to believe that his spaceship is standing still, he needs to also believe that there is now a gravitational field present that is cancelling out the force from his rockets. Adam will believe that this gravitational field exists throughout all of space, and that this gravitational field is causing the Earth and the rest of the universe to accelerate towards him. (...) Therefore, Adam will believe that the gravitational field is causing time on Earth to flow much faster than time on his ship. It is only during the very brief moment when Adam is firing his rockets to turn around that he believes this external gravitational field is present. For the remainder of his trip after he turns his rockets off, Adam will again view time on Earth as moving slowly. Nevertheless, during the very brief moments when he fires his engines, he sees time on Earth flowing so extremely fast that this far more than compensates for the fact that he sees time on Earth flowing slowly during the rest of his journey. This is why Adam will believe that more time has passed for Sarah than for him when he returns."
This idiotic "solution" of the twin paradox was fabricated by Einstein in 1918 ("A homogenous gravitational field appears" which can only reach the Earth in the beliefs of the traveling twin):
http://sciliterature.50webs.com/Dialog.htm
Albert Einstein 1918: "A homogenous gravitational field appears, that is directed towards the positive x-axis. Clock U1 is accelerated in the direction of the positive x-axis until it has reached the velocity v, then the gravitational field disappears again. An external force, acting upon U2 in the negative direction of the x-axis prevents U2 from being set in motion by the gravitational field. (...) According to the general theory of relativity, a clock will go faster the higher the gravitational potential of the location where it is located, and during partial process 3 U2 happens to be located at a higher gravitational potential than U1. The calculation shows that this speeding ahead constitutes exactly twice as much as the lagging behind during the partial processes 2 and 4."
Pentcho Valev
