"Determinations of the fit into the oftentimes-unappreciated area of physics called precision measurement—an area which includes precision measurements, and . The determination of big G—a measurement which on the surface appears deceptively simple—continues to be one of 's greatest challenges to the skills and cunning of s. In spite of the fact that, on the scale of the Universe, big G's effects are so large as to single-handedly hold everything together, on the scale of an individual research laboratory, big G's effects are so small that they go unnoticed…hidden in a background of much larger forces and noise sources. It is this ‘smallness’ that makes determining the precise value of this (seemingly unrelated to the rest of physics) fundamental constant so difficult."