Relativistic velocity limitations

shimph
Messages
2
Reaction score
0
A person is in a confined cubicle - say 1m x 1m x 1m. Assuming he is not accelerating, he should not be able to tell if he is moving with respect to any other non-acclerating coordinate system. Are there any limits on his relative speed?
 
Physics news on Phys.org
Ouch, that is cramped. But yes, the limit is v<c.
 
Why did we confine the poor man to such a small space? I don't understand what you're getting at with your question.
 
shimph said:
A person is in a confined cubicle - say 1m x 1m x 1m. Assuming he is not accelerating, he should not be able to tell if he is moving with respect to any other non-acclerating coordinate system. Are there any limits on his relative speed?
What, exactly do you mean by "in a confined cubicle"? What does that have to do with his measuring his motion relative to another system? What instruments does he have to measure with?
 
Thread 'Can this experiment break Lorentz symmetry?'

Thread 'Can this experiment break Lorentz symmetry?'

1. The Big Idea: According to Einstein’s relativity, all motion is relative. You can’t tell if you’re moving at a constant velocity without looking outside. But what if there is a universal “rest frame” (like the old idea of the “ether”)? This experiment tries to find out by looking for tiny, directional differences in how objects move inside a sealed box. 2. How It Works: The Two-Stage Process Imagine a perfectly isolated spacecraft (our lab) moving through space at some unknown speed V...
View full post »

Thread 'Relativator (Circular Slide-Rule): Simulated with Desmos - Insight'

Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. The Relativator was sold by (as printed) Atomic Laboratories, Inc. 3086 Claremont Ave, Berkeley 5, California , which seems to be a division of Cenco Instruments (Central Scientific Company)... Source: https://www.physicsforums.com/insights/relativator-circular-slide-rule-simulated-with-desmos/ by @robphy
View full post »

Thread '1-Way Speed of Light'

Does the speed of light change in a gravitational field depending on whether the direction of travel is parallel to the field, or perpendicular to the field? And is it the same in both directions at each orientation? This question could be answered experimentally to some degree of accuracy. Experiment design: Place two identical clocks A and B on the circumference of a wheel at opposite ends of the diameter of length L. The wheel is positioned upright, i.e., perpendicular to the ground...
View full post »

Similar threads

A Velocity Verlet for relativistic simulation
Replies
2
Views
1K
B Relativistic Velocity Addition: Is c Ever Exceeded?
Replies
16
Views
3K
I How Relativistic Speeds Affect Time Perception on a Spaceship
Replies
18
Views
2K
A Question on Dirac's derivatives of the 4-velocity w.r.t. coordinates
2
Replies
53
Views
2K
I Can anyone clarify the relativistic twin paradox for me?
Replies
43
Views
3K
A The Lagrangian of a free particle ##L=-m \, ds/dt##
Replies
3
Views
398
I Is coordinate speed affected by gravitational waves?
Replies
17
Views
3K
I What about the Big Ben Paradox?
Replies
40
Views
6K
I Apparent Violations of Principle of Relativity?
Replies
2
Views
1K
I Conventionality of the One-Way Speed of Light
Replies
5
Views
316

Hot Threads

Recent Insights

Back
Top