Is the twin paradox still a paradox?
In both views there is no symmetry between the spacetime paths of the twins. Therefore, the twin paradox is not a paradox in the sense of a logical contradiction….Conclusion.
| Event | Earth (years) | Spaceship (years) |
|---|---|---|
| Departure | 0 | 0 |
| End of outgoing trip = Beginning of ingoing trip | 5 | 3 |
| Arrival | 10 | 6 |
What is the classical twin paradox?
To me the Classical Twin Paradox is what Einstein called the Clock Paradox, i.e. the version without any accelerations. And this paradox has never been resolved. If there are no accelerations involved in the situation, than the whole paradox results only from the simple equation for time dilatation:
Is the twin paradox a time machine?
Paul Davies’s recent article “How to Build a Time Machine” has rekindled interest in the Twin Paradox, arguably the most famous thought experiment in relativity theory. In this supposed paradox, one of two twins travels at near the speed of light to a distant star and returns to the earth.
What is the paradox of the traveling brother?
The paradox lies in the question “Why is the traveling brother younger?” Special relativity tells us that an observed clock, traveling at a high speed past an observer, appears to run more slowly. (Many of us solved this problem in sophomore physics, to demonstrate one effect of the absolute nature of the speed of light.)
Do accelerations explain the acceleration paradox?
While the result is correct, the explanation is misleading. Because of these types of incomplete explanations, to many partially informed people, the accelerations appear to be the issue. Therefore, it is believed that the general theory of relativity is required to explain the paradox.