we could model a haystack with a needle in it as a set of nornally distributed line segment lengths of tiny proportioned radius, placed &quot;atop&quot; each other such that precise surface contact was made at an upper point of each lower hay or needle elenent and a paired lower point of each upper hay or needle element<div><br></div><div>the positions and orientati-ns of the line segments are similalry nornally and uniformly distributed respectively, constrained by the touching surface poin--</div>