Introducing Relativity on Rotated Graph Paper: A Graphical Motivation

robphy
Science Advisor
Homework Helper
Insights Author
Gold Member
Messages
7,455
Reaction score
2,980
(based on https://www.physicsforums.com/threads/teaching-sr-without-simultaneity.1011051/post-6588952 and https://physics.stackexchange.com/a/689291/148184 )

In my earlier Insight Spacetime Diagrams of Light Clocks,
I stated without proof that the areas of all light-clock diamonds are equal.
In my article, “Relativity on Rotated Graph Paper”, Am. J. Phys. 84, 344 (2016)
I provided algebraic proof.

In the penultimate draft, I had a non-algebraic motivating argument (which also motivates time dilation and length contraction)
that had to be left out because the article was already too long.
This argument now appears in Introducing relativity on rotated graph paper...

Continue reading...
 

Similar threads

Insights Relativity on Rotated Graph Paper - Comments
  • · Replies 15 ·
Replies
15
Views
3K
Graduate LQG Legend Writes Paper Claiming GR Explains Dark Matter Phenomena
  • · Replies 264 ·
9
Replies
264
Views
25K
Undergrad Three inertial particles: Separating the twins from the paradox
  • · Replies 40 ·
2
Replies
40
Views
6K
Undergrad Deur Gravitational self-interaction Doesn't Explain Galaxy Rotation Curves
  • · Replies 72 ·
3
Replies
72
Views
12K
Undergrad Effective Hamiltonian to Rotational Term Values
  • · Replies 0 ·
Replies
0
Views
3K
Graduate RIP Edwin F Taylor (1931-2025)
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad The standard model from loop quantum gravity via spinors octonions
  • · Replies 26 ·
Replies
26
Views
7K
Undergrad What does Purcell actually say about electromagnetism and relativity?
  • · Replies 32 ·
2
Replies
32
Views
8K
Undergrad Non-locality by memory (Jung, 2020) applied to stochastic mechanics
  • · Replies 5 ·
Replies
5
Views
3K
Graduate An interesting new paper on f(X) gravity
  • · Replies 1 ·
Replies
1
Views
3K