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I am at the rear wall of my spaceship travelling at the speed of light. I switch on my flashlight. Will the light reach the front wall? (continued)
Dave Rowsell
Swansea, UK
This is pretty much the same question that Albert Einstein posed over a century ago when he asked himself what it would be like to travel alongside a light wave. In this case, he imagined travelling in a superfast tram at the speed of light, c.
With that in mind, I felt that some of the previous answers fell short, as they considered the scenario of travelling at…
