OK I've been reading up on Lorentz contractions in special relativity and i have been wondering about something for a while now. When a Lorentz contraction occurs what actually contracts? the space between the atoms? (because we are 99% space) the actual atoms themselves? or the distance between the strong force?(or possible now the gravitational force due to the Schwarzschild proton) I would appreciate some incite into this question because to my understanding everyone i ask and everywhere i look it just says the "Object" contracts and it gives me the equation to find the factor of the contraction. It doesnt really tell me what the contraction is only that it happens. This would really help a lot thanks!