ISF Logo   IS Forum
Forum Index Register Members List Events Mark Forums Read Help

Go Back   International Skeptics Forum » General Topics » Science, Mathematics, Medicine, and Technology
 


Welcome to the International Skeptics Forum, where we discuss skepticism, critical thinking, the paranormal and science in a friendly but lively way. You are currently viewing the forum as a guest, which means you are missing out on discussing matters that are of interest to you. Please consider registering so you can gain full use of the forum features and interact with other Members. Registration is simple, fast and free! Click here to register today.
Tags Allais Effect , Dark Flow , relativity , Theory of Relativity

Reply
Old Yesterday, 03:28 PM   #1401
SDG
Critical Thinker
 
Join Date: Jul 2018
Posts: 461
Originally Posted by Robin View Post
Yes, too many variables and I mixed it up with N from previous diagrams. The spacetime interval for is -3 and the proper time is
Robin,
right, and I stand corrected as well.

When for speed.
My calculation got mixed up with lower precision.
SDG
SDG is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old Yesterday, 03:32 PM   #1402
Robin
Penultimate Amazing
 
Join Date: Apr 2004
Posts: 10,884
Originally Posted by SDG View Post
What are the intervals: ?
You said earlier that A is not an event, but rather a spatial co-ordinate. So shall we call A0 the event (0,sqrt(3),1,0) ?

Spacetime interval for A0A1 and A0'A1'=-1 Proper time for A0A1 and A0'A1'=1
Spacetime interval for A0A2 and A0'A2'=-4 Proper time for A0A2 and A0'A2'=2

Then please clarify:

C=(0,1.732,0,0) C'=(-3,3.464,0,0)
C1=(1,1.732,0,0)
C2=(2,1.732,0,0)

or

C1=(2,1.732,0,0)
C2=(4,1.732,0,0)

or something else?

__________________
The non-theoretical character of metaphysics would not be in itself a defect; all arts have this non-theoretical character without thereby losing their high value for personal as well as for social life. The danger lies in the deceptive character of metaphysics; it gives the illusion of knowledge without actually giving any knowledge. This is the reason why we reject it. - Rudolf Carnap "Philosophy and Logical Syntax"

Last edited by Robin; Yesterday at 03:48 PM.
Robin is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old Yesterday, 03:40 PM   #1403
SDG
Critical Thinker
 
Join Date: Jul 2018
Posts: 461
Originally Posted by Robin View Post
You said earlier that A is not an event, but rather a spatial co-ordinate. So shall we call A0 the event (0,sqrt(3),1,0) ?

Spacetime interval for CC1 and C'C1'=-1 Proper time for CC1 and C'C1'=1
Spacetime interval for CC2 and C'C2'=-4 Proper time for CC2 and C'C2'=2
Spacetime interval for A0A1 and A0'A1'=-1 Proper time for A0A1 and A0'A1'=1
Spacetime interval for A0A2 and A0'A2'=-4 Proper time for A0A2 and A0'A2'=2

Are we back in agreement?

EDIT: No, wait, your C1 and C2 are different - I will rework
Yes, I skipped 0's for and => and for the events.
SDG
SDG is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old Yesterday, 03:50 PM   #1404
SDG
Critical Thinker
 
Join Date: Jul 2018
Posts: 461
Originally Posted by Robin View Post
You said earlier that A is not an event, but rather a spatial co-ordinate. So shall we call A0 the event (0,sqrt(3),1,0) ?

Spacetime interval for A0A1 and A0'A1'=-1 Proper time for A0A1 and A0'A1'=1
Spacetime interval for A0A2 and A0'A2'=-4 Proper time for A0A2 and A0'A2'=2

Then please clarify:

C=(0,1.732,0,0) C'=(-3,3.464,0,0)
C1=(1,1.732,0,0)
C2=(2,1.732,0,0)

or

C1=(2,1.732,0,0)
C2=(4,1.732,0,0)

or something else?
C=(0,1.732,0,0) C'=(-3,3.464,0,0)
C1=(1,1.732,0,0)
C2=(2,1.732,0,0)
SDG is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old Yesterday, 03:54 PM   #1405
Robin
Penultimate Amazing
 
Join Date: Apr 2004
Posts: 10,884
Originally Posted by SDG View Post
C=(0,1.732,0,0) C'=(-3,3.464,0,0)
C1=(1,1.732,0,0)
C2=(2,1.732,0,0)
Spacetime interval for CC1 and C'C1'=-1 Proper time for CC1 and C'C1'=1
Spacetime interval for CC2 and C'C2'=-4 Proper time for CC2 and C'C2'=2

__________________
The non-theoretical character of metaphysics would not be in itself a defect; all arts have this non-theoretical character without thereby losing their high value for personal as well as for social life. The danger lies in the deceptive character of metaphysics; it gives the illusion of knowledge without actually giving any knowledge. This is the reason why we reject it. - Rudolf Carnap "Philosophy and Logical Syntax"

Last edited by Robin; Yesterday at 04:15 PM.
Robin is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old Yesterday, 05:18 PM   #1406
Robin
Penultimate Amazing
 
Join Date: Apr 2004
Posts: 10,884
And, to save you time, here is what I am using to answer all of these questions, so you could set this up and plug those numbers in and get the same answers I am going to give:

__________________
The non-theoretical character of metaphysics would not be in itself a defect; all arts have this non-theoretical character without thereby losing their high value for personal as well as for social life. The danger lies in the deceptive character of metaphysics; it gives the illusion of knowledge without actually giving any knowledge. This is the reason why we reject it. - Rudolf Carnap "Philosophy and Logical Syntax"
Robin is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old Yesterday, 08:53 PM   #1407
Robin
Penultimate Amazing
 
Join Date: Apr 2004
Posts: 10,884
So what is the problem?
__________________
The non-theoretical character of metaphysics would not be in itself a defect; all arts have this non-theoretical character without thereby losing their high value for personal as well as for social life. The danger lies in the deceptive character of metaphysics; it gives the illusion of knowledge without actually giving any knowledge. This is the reason why we reject it. - Rudolf Carnap "Philosophy and Logical Syntax"
Robin is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Reply

International Skeptics Forum » General Topics » Science, Mathematics, Medicine, and Technology

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -7. The time now is 07:49 AM.
Powered by vBulletin. Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.

This forum began as part of the James Randi Education Foundation (JREF). However, the forum now exists as
an independent entity with no affiliation with or endorsement by the JREF, including the section in reference to "JREF" topics.

Disclaimer: Messages posted in the Forum are solely the opinion of their authors.