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or proof that length contraction doesn't occur.
Published on March 15, 2018 By Iben In Everything Else

We have a space outpost 1 light year from earth that we want

to send a message to in much less than a year.

We have a collection of satellites in large orbit around earth

and a collection of satellites in large orbit around the outpost.

Each satellite will have a large mirror for collecting, focusing and reflecting

our transmissions. Each satellite will travel at 99% the speed of light.

When we transmit our message from earth we will utilize a satellite near earth

and a satellite near the outpost that are traveling toward each other. 

Because the satellites are moving toward each other at almost the speed

of light the distance between the satellites will be contracted (length contraction).

The message will only have a short trip between the satellites. This will allow

a message travel time of much less than a year from earth to the outpost.

We are simply reflecting a message through an alternate reality.

 


Comments
on Mar 15, 2018

Except the speed of light is always c (~ 3 x 10^8 m/s) regardless of the reference frame, so the light still has to travel the same distance for each (relatively-stationary) observer. The total length the light/data would travel is still the complete length of outpost-satellite1-satellite2-earth

on Mar 16, 2018

The message will only have a short trip between the satellites.

 

You forgot to factor in time dilation. Proper time in the satellite frame doesn't match with the earth/colony proper time.

BTW, I've seen the subtitle:

or proof that length contraction doesn't occur.

Rule of thumb : the likelihood that a couple lines written on a forum between two meals can overrule a century of thought experiments, building up of conjectures and consistent set of equations, and (incredibly abundant) experimental testing and verification of these conjectures is absurdly close to 0.

on Mar 16, 2018

Dubbzy104

Except the speed of light is always c (~ 3 x 10^8 m/s) regardless of the reference frame, so the light still has to travel the same distance for each (relatively-stationary) observer. The total length the light/data would travel is still the complete length of outpost-satellite1-satellite2-earth

Good point you could be right.

Werewindlefr

Rule of thumb : the likelihood that a couple lines written on a forum between two meals can overrule a century of thought experiments, building up of conjectures and consistent set of equations, and (incredibly abundant) experimental testing and verification of these conjectures is absurdly close to 0.

Most of the experimental testing and verification has been electro dynamics

and subatomic particles. Things might work different in the macro world we live in.