What is the twins paradox and how is this resolved?
The so-called “twin paradox” is easily resolved by noting that there is a physically meaningful disinction between the experiences of the two twins during the trip.
Which is non inertial frame in twin paradox?
Although both twins can legitimately claim that they are at rest in their own frame, only the traveling twin experiences acceleration when the spaceship engines are turned on. This acceleration, measurable with an accelerometer, makes his rest frame temporarily non-inertial.
Does time on earth differ with the time in outer space why?
We all measure our experience in space-time differently. That’s because space-time isn’t flat — it’s curved, and it can be warped by matter and energy. That’s why time passes slower for objects closer to the center of the Earth where the gravity is stronger.
What makes a reference frame inertial?
An inertial frame of reference is one in which the motion of a particle not subject to forces is in a straight line at constant speed.
Is the twin paradox proven?
The twin paradox is real as the traveling twin will see the Earth clock moving as slowly as the twin on the Earth. Yes, it is real but shouldn’t really be called a paradox.
What is the paradox of the traveler twin?
The paradox is about twins, one of which goes on a journey to outer space where he is observed by the Earth twin to be moving with great speed. Finally, the traveler twin returns to meet his twin on Earth. According to special relativity, when the twins meet, the traveler twin has aged much less than the Earth twin.
Is inertial frame approximation a good way to solve physics problems?
For the types of problems generally considered in physics class, the inertial frame approximation will work fine. One way to look at it is that in the rotating earth case, the acceleration that you feel from circular motion v 2 / R will be much less than that of gravity, so you can ignore it.
Is the Earth inertial or Coriolis?
All of that is Coriolis stuff; it depends on the Earth being a rotating reference frame, not an inertial one. If someone is treating the ECEF frame as “inertial” it’s perhaps legitimate if they’re travelling northward near the equator (no Coriolis force; centrifugal force can be absorbed into gravitational acceleration).
Why does the Earth have a free fall and free fall?
Notice that both these effects are due to the Earth’s spin. The effects due to the Sun’s gravity drop out locally, because in general relativity a free-fall trajectory is in fact the closest thing there is to an inertial frame.