Go Back   Physics Help Forum > College/University Physics Help > Special and General Relativity

Special and General Relativity Special and General Relativity Physics Help Forum

Like Tree7Likes
Reply
 
LinkBack Thread Tools Display Modes
Old Nov 1st 2016, 06:39 PM   #31
Senior Member
 
Join Date: Aug 2010
Posts: 232
Well, that's the problem. The fact that you do not understand what ChipB is saying means that you need to learn more physics, not that he is wrong.
topsquark likes this.
HallsofIvy is offline   Reply With Quote
Old Nov 1st 2016, 06:54 PM   #32
Junior Member
 
Join Date: Oct 2016
Posts: 19
Originally Posted by ChipB View Post
In each case it stretches between the observer and each car (or is it between the two cars?)
If car1 run 70MPH and car2's speed is zero. The car1 will make a force to pull the spring's end attached to it. So this end will stretch earlier than the other. And the argument is the opposite if car1's speed is zero and car2's speed is 70MPH. 2 observers on the cars carry the atomic clocks (which are synchronised with each other) and record the stretching time of the spring's end attached to their own car. Then they can tell each other the results and determine the difference. That's it.

Last edited by HaiNguyen; Nov 1st 2016 at 06:57 PM.
HaiNguyen is offline   Reply With Quote
Old Nov 1st 2016, 07:22 PM   #33
Junior Member
 
Join Date: Oct 2016
Posts: 19
I'd like to emphasize that the active force to stretch the spring is made by the running car. So that running car is responsible for the stretching earlier of the spring'end attached to it.
HaiNguyen is offline   Reply With Quote
Old Nov 2nd 2016, 07:25 AM   #34
Physics Team
 
ChipB's Avatar
 
Join Date: Jun 2010
Location: Naperville, IL USA
Posts: 2,269
Originally Posted by HaiNguyen View Post
If car1 run 70MPH and car2's speed is zero. The car1 will make a force to pull the spring's end attached to it. So this end will stretch earlier than the other.
Wrong! Both ends stretch at the same time! Don't confuse that video you put up previously with what's happening here - that was not a video of one end moving at constant speed away from the other, but rather shows what happens when an impulse is applied to one end. It's a completely different thing. I suggest you try the experiment yourself. Just be sure to use constant velocity as you stretch the spring. If you don't have a spring you can do it with a rubber band.

Last edited by ChipB; Nov 2nd 2016 at 09:05 AM.
ChipB is offline   Reply With Quote
Old Nov 2nd 2016, 08:03 AM   #35
Junior Member
 
Join Date: Oct 2016
Posts: 19
You know what, I don't want to follow this debate any more. I said what I need to say. What you think is what you think. Your choice.
HaiNguyen is offline   Reply With Quote
Old Nov 2nd 2016, 09:19 AM   #36
Senior Member
 
Join Date: Aug 2010
Posts: 232
Originally Posted by HaiNguyen View Post
I'd like to emphasize that the active force to stretch the spring is made by the running car. So that running car is responsible for the stretching earlier of the spring'end attached to it.
That contradicts high school physics!
topsquark likes this.
HallsofIvy is offline   Reply With Quote
Old Nov 12th 2016, 01:24 AM   #37
Banned
 
Join Date: Aug 2016
Posts: 50
the only method of confining an absolute FoR is to define the absolute limits of a photon. I contend I have defined this in the equation supplied to the thread "general quantum unity". If you wish to discuss this I can define this equation to anybody who actually wishes to comprehend it rather than continue the meaningless contention that the Uncertainty Principal is without solution.
Instantonly is offline   Reply With Quote
Old Nov 12th 2016, 06:18 AM   #38
Forum Admin
 
topsquark's Avatar
 
Join Date: Apr 2008
Location: On the dance floor, baby!
Posts: 2,152
Originally Posted by Instantonly View Post
absolute limits of a photon
the Uncertainty Principal is without solution.
What are the limits of a photon??

The Uncertainty Principle is not a question without a solution it is, you know, a principle. There's nothing to get around.

-Dan
__________________
Do not meddle in the affairs of dragons for you are crunchy and taste good with ketchup.

See the forum rules here.
topsquark is offline   Reply With Quote
Old Dec 22nd 2016, 07:14 AM   #39
Senior Member
 
Join Date: Aug 2010
Posts: 232
Originally Posted by HaiNguyen View Post
You know what, I don't want to follow this debate any more. I said what I need to say. What you think is what you think. Your choice.
And you don't care what the truth is?

I guess you wanted everyone to so "Oh goodness, that's true. You are such a genius" and when that didn't happen, you walk away.
HallsofIvy is offline   Reply With Quote
Old Dec 27th 2016, 01:58 AM   #40
Banned
 
Join Date: Aug 2016
Posts: 50
Originally Posted by topsquark View Post
What are the limits of a photon??

The Uncertainty Principle is not a question without a solution it is, you know, a principle. There's nothing to get around.

-Dan
I have to make the observation that the uncertainty principal is only likely to remain valid until DM/DE is identified and quantified.

To provide a nucleus to this, I would comment that the investigation I have made provides an explanation of the observable universe that discounts a BB origin. DM and DE provides a format for this conclusion.

As it took over 20 years to find a derivation that can be worked from, I have not taken the subject further in the year since. If contributors here have an interest in suspending absolutes in an effort to quantify what is yet to be quantified, I believe greater definition can be provided to the basis of the uncertainty principal.
Instantonly is offline   Reply With Quote
Reply

  Physics Help Forum > College/University Physics Help > Special and General Relativity

Tags
absolute, exist, frame, gravity, newton 3rd law, proof, reference, reference frame



Search tags for this page
Click on a term to search for related topics.
Thread Tools
Display Modes


Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
Help with frame of reference question PhysicsKidd Kinematics and Dynamics 3 Nov 5th 2014 02:13 PM
Frame of reference avengefulghost Kinematics and Dynamics 1 Jan 16th 2011 08:56 PM
Inertial Frame of Reference HassanZahid Special and General Relativity 1 Dec 24th 2008 05:35 PM
reference frame difficulty chicomore Kinematics and Dynamics 0 Dec 5th 2008 06:41 PM
inertial reference frame evabern Special and General Relativity 1 Oct 15th 2008 11:58 AM


Facebook Twitter Google+ RSS Feed