Relativity Reality

[abisha]

hi all.

 

i have a sertain problem, with Relativity. thats the following.

 

Suspect A + B, they know each and both start at the Center both a carry a atomic clock, *pocket size*

and ofcourse set to match

 

both are in the Center, they start waving at each other at a intervall of 10 seconds a wave.

 

now, they moveing away of each with a super fast car, but still waving at each with speed of 100.000 Meters a second *damn fast car*

the journey will take around 3 mins for both drivers, each will see 18 times a waving.

 

now here comes the trouble.

 

Subject A, getting Tiered of waving, and sudden stop waving. It will take Subject B 120 seconds to know Subject A have stoped waving.

 

So how do Reality Deals with Subject A, if het jumps on his Car and start driving to Subject B?, it will take reality 120 seconds to carry the Information he jumped on his car? even worse Subject A is already very Close to Center, who's Clock will go faster or slower? and why

Edited December 18, 2012 by abisha

[Janus]

hi all.

 

i have a sertain problem, with Relativity. thats the following.

 

Suspect A + B, they know each and both start at the Center both a carry a atomic clock, *pocket size*

and ofcourse set to match

 

both are in the Center, they start waving at each other at a intervall of 10 seconds a wave.

 

now, they moveing away of each with a super fast car, but still waving at each with speed of 100.000 Meters a second *damn fast car*

the journey will take around 3 mins for both drivers, each will see 18 times a waving.

 

now here comes the trouble.

 

Subject A, getting Tiered of waving, and sudden stop waving. It will take Subject B 120 seconds to know Subject A have stoped waving.

 

So how do Reality Deals with Subject A, if het jumps on his Car and start driving to Subject B?, it will take reality 120 seconds to carry the Information he jumped on his car? even worse Subject A is already very Close to Center, who's Clock will go faster or slower? and why

 

Nothing in this post has anything to do with Relativity as it really just is concerned with light signal delay times. (which would occur with or without Relativity.)

[abisha]

 

Nothing in this post has anything to do with Relativity as it really just is concerned with light signal delay times. (which would occur with or without Relativity.)

 

have you read it all?, i used a *signal* as waving to make the subject more easy to understand.

[Janus]

 

have you read it all?, i used a *signal* as waving to make the subject more easy to understand.

 

 

Yes, I read it all, but it still doesn't pertain to Relativity. The effects of Relativity are what are left over after you've already accounted for light signal delay.

 

If we ignore Relativity and just deal with signal delay, the following would happen:

 

As A and B separate, they will see each other waving at 1/2 the speed they are. This is because the distance between them increases between the start of each wave, thus the time it takes fro the light of each wave to cross the distance between them gets longer with each wave. This is known as the Doppler effect. After 3 min and each of them reaches their respective ends, they will have seen the other wave 9 times. If A were to stop waving at this point, B would continue to see him waving for 120 sec at a rate of 0.75 wave every tens sec until he sees 9 more waves and A stops waving. In addition, during this 120 sec he will still be seeing A moving towards the endpoint. So, after 5 mins he will have seen A wave 18 times and then stop. A will also see B wave a total of 18 times in 5 mins, but then after that continue to see B wave at a normal rate( 1 wave per 10 sec) after that.

 

Now let's assume that A, instead of stopping waving, turns around and heads back towards B. Now, After 5 min and seeing 18 waves, B will start seeing waves coming from A at a rate of 1 1/3 waves every 10 sec. (Doppler shift again, just in the opposite direction.) If we assume that A continues until he reaches B, it will take 6 minutes to make the trip, making the total elapsed time from separation to rejoining 9 min. This means that B will see the faster wave rate for 4 min (9 min-5 min). This means that he sees an additional 36 waves from A for a total of 54 waves. In Nine minutes he himself will have also waved 54 times. In other words, there would be no difference in time nor wave count between A and B.

 

The difference between this and what Relativity predicts is that other factors (time dilation, length contraction, etc) other than just the Doppler effect have to be taken into account. You can include Doppler shift into your calculations, but it will be a Doppler shift that takes these other factors into account and will give a different result.

 

As to which clock actually "ran faster", this isn't really a proper question in Relativity because at different times Both A and B will say that it was running faster and both would correct by their accounts. Instead, it is better to say which clock accumulated more time, and this only makes sense if we end up by bringing the two clocks back together again, and even then it depends on how we bring the clocks back together. If we do so like in my last example, A being brought to B, than B will show more time. If we had brought B to A, then A would have shown more time, Lastly if we brought them both back to the middle at the same speed, they would both show the same time.

[abisha]

thank you Atom, it will take some time to proccess this.

 

this was especially helpful

 

The effects of Relativity are what are left over after you've already accounted for light signal delay.

The difference between this and what Relativity predicts is that other factors (time dilation, length contraction, etc) other than just the Doppler effect have to be taken into account. You can include Doppler shift into your calculations, but it will be a Doppler shift that takes these other factors into account and will give a different result.

Edited December 20, 2012 by abisha

[imatfaal]

Abisha - welcome to the forum, just a quick tip.

 

The other members names are in the grey band above their post - they are on the left hand side of the screen and are blue and clickable (it will go to the member's profile if you click). The member you were replying to is Janus not atom. Check where your name is in relation to your post.

 

 

The word above the avatar/photo on the right hand side of the screen is a jokey reference to how many posts the member has made - you will note that yours is lepton, others might have baryon, Janus' is atom, etc

 

cheers

 

imatfaal