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Topic: Dingle and the Twins' Paradox (Tom and Paul Andersen are wrong)
Replies: 109   Last Post: Feb 28, 2012 7:38 PM

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 Sam Wormley Posts: 607 Registered: 12/18/09
Re: Dingle and the Twins' Paradox (Tom and Paul Andersen are wrong)
Posted: Feb 17, 2012 12:25 PM

On 2/13/12 7:51 PM, Koobee Wublee wrote:
> Of course, in the twins? paradox, there each of the two observers is
> observed by the other as the observed.

Perhaps Koobee would benefit from a space-time diagram for the two
observers.
http://www.phys.vt.edu/~takeuchi/relativity/notes/section15.html
http://www.phys.vt.edu/~takeuchi/relativity/notes/twin.gif

> In the Earth frame of reference, time on the spaceship will be observed to pass more slowly than on the Earth due to time dilation. It may seem as if only a few years have past on the ship while decades pass on the Earth. So the twin of the astronaut waiting on the Earth expects the astronaut to be the much younger of the two upon return.
>
> In the spaceship frame of reference, it is the Earth that is moving at a very high speed so time on Earth will be observed to pass more slowly than on the spaceship. Decades will pass on the ship while only a few years pass on Earth. So the astronaut expects that the twin sibling waiting on the Earth to be the much younger of the two upon return.
>
> For the astronaut to return to the Earth, he/she must change direction and thereby switch from one inertial frame to another, and that breaks the symmetry between the two observers.

Date Subject Author
2/13/12 Koobee Wublee
2/13/12 Brian Q. Hutchings
2/14/12 Dirk Van de moortel
2/14/12 Brian Q. Hutchings
2/18/12 microm2011@hotmail.com
2/19/12 Hayek
2/17/12 Sam Wormley
2/18/12 Koobee Wublee
2/18/12 Sam Wormley
2/20/12 PD
2/20/12 Koobee Wublee
2/20/12 Sam Wormley
2/19/12 Hayek
2/19/12 Dono
2/19/12 Androcles
2/19/12 Hayek
2/19/12 microm2011@hotmail.com
2/19/12 Hayek
2/19/12 microm2011@hotmail.com
2/22/12 Henry Wilson DSc
2/19/12 oriel36
2/19/12 Hayek
2/19/12 oriel36
2/19/12 pnalsing@gmail.com
2/20/12 Androcles
2/20/12 oriel36
2/20/12 Sam Wormley
2/20/12 oriel36
2/20/12 Sam Wormley
2/21/12 oriel36
2/21/12 Sam Wormley
2/21/12 PD
2/21/12 Sam Wormley
2/21/12 oriel36
2/21/12 Sam Wormley
2/21/12 oriel36
2/22/12 Michael Moroney
2/22/12 oriel36
2/22/12 Michael Moroney
2/22/12 Androcles
2/22/12 oriel36
2/22/12 pnalsing@gmail.com
2/22/12 Michael Moroney
2/22/12 oriel36
2/22/12 pnalsing@gmail.com
2/22/12 oriel36
2/23/12 Sam Wormley
2/23/12 Sam Wormley
2/23/12 oriel36
2/23/12 Sam Wormley
2/23/12 Sam Wormley
2/23/12 Chris.B
2/23/12 oriel36
2/23/12 Sam Wormley
2/23/12 oriel36
2/23/12 pnalsing@gmail.com
2/23/12 Sam Wormley
2/23/12 oriel36
2/23/12 oriel36
2/23/12 pnalsing@gmail.com
2/23/12 Androcles
2/23/12 oriel36
2/23/12 pnalsing@gmail.com
2/23/12 pnalsing@gmail.com
2/24/12 oriel36
2/24/12 oriel36
2/24/12 Sam Wormley
2/24/12 oriel36
2/24/12 oriel36
2/25/12 oriel36
2/25/12 oriel36
2/25/12 oriel36
2/23/12 oriel36
2/22/12 cwldoc
2/22/12 oriel36
2/22/12 Sam Wormley
2/22/12 oriel36
2/22/12 Sam Wormley
2/22/12 oriel36
2/22/12 oriel36
2/20/12 pnalsing@gmail.com
2/20/12 Androcles
2/20/12 Hayek
2/20/12 oriel36
2/19/12 Hayek
2/19/12 microm2011@hotmail.com
2/19/12 Androcles
2/20/12 Daryl McCullough
2/23/12 jsavard@ecn.ab.ca
2/23/12 Androcles
2/24/12 Koobee Wublee
2/24/12 Henry Wilson DSc
2/24/12 Sam Wormley
2/25/12 Henry Wilson DSc
2/25/12 Brian Q. Hutchings
2/25/12 Sam Wormley
2/25/12 Henry Wilson DSc
2/25/12 Peter Webb
2/26/12 Henry Wilson DSc
2/25/12 Sam Wormley
2/26/12 Henry Wilson DSc
2/28/12 Roger Onslow
2/28/12 Henry Wilson DSc