Show how railroad track tracks creep the rails 11 en on a track that appears to be mall laid often begin to kovei lengthwise so 0 o slowly that their motion li Is imperceptible until ita its have accumulated but with euch such great force that nothing aill top stop it the onward movement of the rail tear tears up tip spikes and deara off etel bolte bolts A recent hami stive lve study by an arner amer can carl ei or winter giner throw 9 little light on ile the motion lit 1 alwa 18 is in the direction of traffic and Is to due I 1 id the moving trains but it appears to be greatest Krca teet li IL loosely and improperly laid track that formed of 4 it lort ort bit biti of rail rall 1 |