Is empty space really empty? what is the nature of "nothingness"? and why should we be even bothered about it?
The answers to these questions dive deep into the reality of space.
find out more :
http://www.cosmicescapes.com/the-nature-of-vacuum/
The answers to these questions dive deep into the reality of space.
find out more :
http://www.cosmicescapes.com/the-nature-of-vacuum/
Yes, space is really, really empty.
Suppose there are 2 observers, O and O', with a relative velocity between them of 𝐯. Their time dilation is:
γ = 1 / √( 1 - v²/c² )
O measures a property of space and gets the amount x. O' does the same and gets x'.
Now, according to Special Relativity:
x' = γx
But since there's no preferred frame of reference:
x' = x
Which gives the equation:
γx = x
Which has two solutions.
First solution: γ = 1 meaning both observers are in the same inertial frame.
Second solution: x = 0 meaning space has no properties.5w