Second, the problem resembles finding the proverbial needle in a haystack.
The robot follows only logic, and it is its unswerving adherence to logic that prevents it from moving towards one haystack or the other.
Haystack is a computer-controlled storage system which is currently available commercially.
Without prior knowledge of changes in specific hormone or hormone receptor levels, however, a candidate gene approach resembles an attempt to find a needle in a haystack.
There was one old man who was found quite recently living for shelter in a hole that he burrowed in a haystack.
It is the needle in the haystack, the fruit machine, the chance approach.
They were salvaging their crops and stocks and remaking their haystacks.
It is like looking for a needle in a rather rapidly moving haystack.