It's literally the thought experiment Einstein lays out in his book on Special and General Relativity.
Now, let's say you are on a train moving at 0.1 C and you observe a lightning bolt striking the front and the back of the train at the same time...
It's literally the thought experiment Einstein lays out in his book on Special and General Relativity.
Now, let's say you are on a train moving at 0.1 C and you observe a lightning bolt striking the front and the back of the train at the same time...