The measurement of the Newtonian constant of gravitation: One recent experiment and some general comments

I discuss here our new determination of the Newtonian constant of gravitation as well as some general comments. Great care was exercised in carrying out the experiment and in our detailed analysis. On completing our measurement, Harold and I were reminded of Cavendish´s description of his 1798 experiment, “The apparatus is very simple.” (That statement also applies to the experiment that I report on here.) We would add, “The measurement is very hard.”