Aiden

I have two questions: 1. If I understand redshift properly, it is the result of expanding space "stretching out" a wavelength of light along its axis of propogation. Why wouldn't the wavelength of light be stretched out uniformly along all its axes? 2. If space is expanding uniformly, how could this expansion be observable from within a closed system? When I build a 3D model of a set of objects, and then scale them all uniformly, their size:distance relationships do not change. Were I to be inside the model and scale myself along with the rest of the model, I would not perceive any change had occurred, and be unable to measure the effect from within. Can you shed any light on these questions?