Lorentz contraction at relativistic speeds

Click For Summary
SUMMARY

The discussion centers on the implications of Lorentz contraction at relativistic speeds, particularly regarding an observer's perception from a starship. It concludes that while the observer's eye experiences contraction along the x-axis, this change is not perceived by the observer themselves, as they remain in their own inertial frame. The effects of aberration, redshift, and luminosity are acknowledged as additional factors influencing the observer's view. The conversation clarifies that Lorentz contraction does not alter the internal structure of the observer's eye as perceived by themselves.

PREREQUISITES
  • Understanding of Special Relativity (SR) equations
  • Familiarity with the concept of Lorentz factor
  • Knowledge of optical physics, specifically diffraction index
  • Basic principles of inertial frames in physics
NEXT STEPS
  • Research the implications of Lorentz contraction on physical objects at relativistic speeds
  • Study the effects of aberration and redshift in astrophysics
  • Explore the relationship between speed, light perception, and optical physics
  • Examine the concept of inertial frames and their relevance in Special Relativity
USEFUL FOR

Physicists, students of relativity, and anyone interested in the effects of high-speed travel on perception and optical phenomena.

TonyP
So I was reading up on the SR equations and the following thought experiment crossed my mind:

Suppose you have someone in a starship traveling at high enough speed to make the Lorentz factor noticeable. Will that produce a blurring effect when the observer is looking out the front window? I am not talking about motion blur here, just the regular uniform blur you get if you're myopic. This effect will of course be on top of the aberration, redshift and luminosity effects.

The eye of the observer is being contracted along the x axis, meaning that the lens gets thinner and the retina gets closer to the lens. All the while c is constant. Will the thinner lens have its diffraction index lowered and as a result light being correctily projected on the retina or not? (considering that the lens is exactly the same, just with molecules more tightly packed together - or does lorentz contraction does have nothing to do at all with space between nuclei?)
 
Physics news on Phys.org
You seem to have a misunderstanding of the nature of the Lorentz contraction. Let us assume A and B are going near the speed of light relative to each other. A will observe B contacting and B will observe A contracting. However neither will observe any such change within their own frame.
Your description of the eye changes in your note would be observed by an outside observer, but NOT by the person him(her)self.
 

Similar threads

  • · Replies 13 ·
Replies
13
Views
2K
  • · Replies 115 ·
4
Replies
115
Views
12K
  • · Replies 18 ·
Replies
18
Views
2K
  • · Replies 14 ·
Replies
14
Views
3K
  • · Replies 7 ·
Replies
7
Views
4K
  • · Replies 13 ·
Replies
13
Views
2K
  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 184 ·
7
Replies
184
Views
24K
  • · Replies 44 ·
2
Replies
44
Views
6K
  • · Replies 42 ·
2
Replies
42
Views
8K