Relativity Question

Ask questions, find resources, browse the virtual shelves.
Post Reply
Devil Particle
Ensign
Posts: 43
Joined: Thu Jun 03, 2010 11:26 pm
Location: Philadelphia

Relativity Question

Post by Devil Particle » Mon Jan 10, 2011 6:31 pm

Say you took your twin and tied a long rope around him and swung him around in a circle. Say you and him were out in space where gravity is close to zero and somehow managed to make this happen. Now imagine that you are able to spin your twin so fast that his speed approaches the speed of light. Even though he is not moving away from or closer to you, would he age at a different rate because he's moving close to the speed of light?

User avatar
neufer
Vacationer at Tralfamadore
Posts: 18805
Joined: Mon Jan 21, 2008 1:57 pm
Location: Alexandria, Virginia

Re: Relativity Question

Post by neufer » Mon Jan 10, 2011 6:45 pm

Devil Particle wrote:
Say you took your twin and tied a long rope around him and swung him around in a circle.
Been there, done that; however, the non-twin brother was 8 years my junior to begin with else I never would have gotten away with it.
Devil Particle wrote:
Say you and him were out in space where gravity is close to zero and somehow managed to make this happen. Now imagine that you are able to spin your twin so fast that his speed approaches the speed of light. Even though he is not moving away from or closer to you, would he age at a different rate because he's moving close to the speed of light?
This is basically the classical twin paradox.

Your twin will hardly age at all (but he will really be pissed).
Art Neuendorffer

User avatar
Beyond
500 Gigaderps
Posts: 6889
Joined: Tue Aug 04, 2009 11:09 am
Location: BEYONDER LAND

Re: Relativity Question

Post by Beyond » Mon Jan 10, 2011 6:55 pm

Wouldn't you have to use a clone instead? Even identical twins are not identical and the Relativity factor should be a lot better with a clone, right :?:
To find the Truth, you must go Beyond.

Devil Particle
Ensign
Posts: 43
Joined: Thu Jun 03, 2010 11:26 pm
Location: Philadelphia

Re: Relativity Question

Post by Devil Particle » Mon Jan 10, 2011 7:40 pm

Follow up question: Would the twin appear red shifted?

User avatar
BMAONE23
Commentator Model 1.23
Posts: 4076
Joined: Wed Feb 23, 2005 6:55 pm
Location: California

Re: Relativity Question

Post by BMAONE23 » Mon Jan 10, 2011 8:24 pm

Devil Particle wrote:Follow up question: Would the twin appear red shifted?
If you had the line tied around his feet, his face would definitely appear red shifted as the blood shifted to his head. :mrgreen:

Devil Particle
Ensign
Posts: 43
Joined: Thu Jun 03, 2010 11:26 pm
Location: Philadelphia

Re: Relativity Question

Post by Devil Particle » Mon Jan 10, 2011 8:30 pm

That's awesome. But I was thinking because the vector velocity of the twin's reference frame would be accelerating toward the observer to maintain the constant speed around the circular path of travel.

User avatar
neufer
Vacationer at Tralfamadore
Posts: 18805
Joined: Mon Jan 21, 2008 1:57 pm
Location: Alexandria, Virginia

Re: Relativity Question

Post by neufer » Mon Jan 10, 2011 9:50 pm

Devil Particle wrote:
Follow up question: Would the twin appear red shifted?
Since the twin's clock is running slower the frequency of any oscillator on him would also run slower: hence a redshift.
Art Neuendorffer

Post Reply