On average, how much younger than the average person would people who have made the following career choices be, by the time they retire?

 

Fighter/test pilot

 

Formula1 driver

 

Top Fueler driver

A fighter pilot / test pilot would probably be in the order of minus 10^2 nanoseconds - 10^-7seconds a day if she flew eastward and plus something of the same order if she flew westward. So a career of constant flying might get the differential up to 10^-2 seconds .

 

All very rough and ready. Remember to go fast the pilot will have to go high - and the higher gravitational potential will mean she is fast-ticking compared to the ground - counteracting the relative velocity which would make her slow-ticking compared to the ground.

 

The others not nearly enough to measure

 

 

The others not nearly enough to measure

 

So just acceleration won't produce time dilation?

Edited February 5, 201510 yr by GeneralDadmission

 

So just acceleration won't produce time dilation?

 

It's the speed, and the duration of the motion, that gives you the difference in elapsed time.

 

So just acceleration won't produce time dilation?

1. It is not "time dilation", it is "total accumulated proper time".

2. Acceleration does not affect the "total accumulated proper time" directly, speed does. See the "clock hypothesis"

1. It is not "time dilation", it is "total accumulated proper time".

2. Acceleration does not affect the "total accumulated proper time" directly, speed does. See the "clock hypothesis"

 

No worries. I'll take that into account for my purposes. Thanks for the correction.