- #1

- 53

- 13

## Main Question or Discussion Point

So let's say you're sitting on the ground (observer A) and there's a car or something that moves at .99c (observer B). (Of course, this is all hypothetical) Now, my interpretation goes that when A is seeing B, the information he gets is distorted, namely due to time dilation, length contraction, ... And so if he wants to get the real length of B he should use $$\ell' = \frac{\ell}{\gamma}\Longrightarrow\ell=\gamma\ell'$$ to know the real length of B. Is this correct? (##\gamma## is of course the Lorentz factor)